Brachytydeus Thor sensu Andre 2005, s. str.
Creators: name: Silva, Guilherme Liberato Da
name: Metzelthin, Maicon Henrique
name: Silva, Onilda Santos Da
name: Ferla, Noeli Juarez
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy

description: Key to the species of Brachytydeus Thor sensu André, 2005
1. Ornamentation type “ Lorryia ” or “Mountains”: dorsal side of idiosoma completely or partially reticulated; reticulation occurs at least in dorso-central region between setae d1, although in some cases the meshes in this region may be extremely elongated in transversal line (then, cross-ties and costulae on the striae are “X”-shaped).......................................2
- Another type of ornamentation: dorsal side of idiosoma completely or partially striated or granulated; striation occurs at least in dorso-central region, between setae d1 ..................................................................53
2. Palptarsus eupathidium (p’ζ) rod-like and rounded distally, thick and relatively long (not shorter than ½ of length of palptarsus).................................................................................................... 3
- Another shape of (p’ζ).................................................................................. 6
3. Dorsal reticulation forms discrete areas divided by striae; all dorsal idiosomal setae lanceolate, curved and sharp with excep- tion of ps1, which are expanded and blunt distally......................... B. nytebodensis (Momen & Lundqvist, 1995)
- No discrete areas present: all dorsum covered with reticulum; dorsal setae of various shapes..........................4
4. Dorsal idiosomal setae aciculate and smooth; meshes of reticulum not elongated and more or less similar in shape.................................................................................... B. montrealensis (Marshall, 1970)
- Another type of dorsal idiosomal setae; meshes of reticulum different in shape: most distinctly elongated................ 5
5. Dorsal idiosomal setae similar in shape: minutely serrate and sharply ended; eupathidium (p’ζ) distinctly longer than 1/2 of length of palptarsus............................................................ B. parataurica (Momen, 1988)
- Dorsal idiosomal setae different in shape: ro, la, ex, c1 and c2 rod-like, d1 and e1— slightly enlarged distally, the remaining setae broadly expanded; all dorsal setae blunt and smooth; eupathidium (p’ζ) as long as 1/2 of length of palptarsus........................................................................... B. parainflata (Momen & Lundqvist, 1995)
6. Palptarsus dumpy and short: length less than twice its width.................................................... 7
- Palptarsus elongate: length greater than twice its width....................................................... 11
7. Dorsum completely reticulated, without discrete areas; dorsal idiosomal setae straight.................................................................................................... B. ivoensis (Momen & Lundqvist, 1996)
- Dorsal reticulation divided into discrete areas; dorsal idiosomal setae distinctly bent, sometimes nearly semicircular....... 8
8. Dorsal idiosomal setae narrowly or distinctly lanceolate....................................................... 9
- Dorsal idiosomal setae pointed, gradually narrowed toward the sharp tips........................................ 10
9. Dorsal idiosomal setae of medium length (28-32), sabre-shaped, narrowly lanceolate and serrated; dorsal leg setae (excluding tarsal setae) and ft ’ on tarsus I serrate; gnathosoma hidden under aspidosoma and only distal part of stilettos visible from above; setae ps1 of the same shape as all dorsal setae..................................... B. polita Kuznetzov, 1975
- Dorsal idiosomal setae short (11-16), distinctly lanceolate and nude; dorsal leg setae (except tarsal setae) and ft ’ on tarsus I lan- ceolate and nude; gnathosoma partially visible from above; setae ps1 finer and more slender than all dorsal setae..................................................................................... B. sherekhani (Kaźmierski, 1998)
10. Dorsal leg setae distinctly lanceolate; frames of polygons of reticulum with a relatively great number of costulae, each side of polygon with 4-9 costulae between neighbouring cross-ties................. B. arkadiensis (Panou & Emmanouel, 1995)
- Dorsal leg setae stouter without setae lanceolate; frames of polygons with a relatively small number of costulae, each side of polygon with 1-3 three costulae between cross-ties....................................... B. catenulata (Thor, 1931)
11. Dorsal reticulation forms discrete areas divided by striae..................................................... 12
- No discrete areas present: entire dorsal side covered with reticulation...........................................30
12. All dorsal idiosomal setae blunt: not narrowed distally (rod-like) or expanded distally (club-shaped, spatulate)........... 13
- At least some dorsal idiosomal setae tapering to a point...................................................... 15
13. Dorsal idiosomal setae short expanded distally (club-shaped); setae f1 much shorter than 1/2 of distance f1-h1 ........................................................................................... B. podocarpa (Baker, 1968)
- Dorsal idiosomal setae long and rod-like, not expanded distally; setae f1 distinctly longer than 1/2 of distance f1-h1 ...... 14
14. Dorsal idiosomal setae rod-like serrated........................................... B. polygonata (Kulczycki, 1992)
- Dorsal idiosomal setae rod-like smooth.................................................. B. evansi (Baker, 1968)
15. Between setae c1 with transverse striae; setae c1 and c2 lie in striated cuticle.................. B. benensis (Baker, 1968)
- Between setae c1 with reticulation; setae c1 and c2 lie in reticulation............................................ 16
16. Setae ro distinctly different in shape in comparison with h1, h2 and ps1 ..........................................17
- All dorsal setae of the same type .........................................................................18
17. Dorsal idiosomal setae lanceolate and pointed, with the exception of h1, h2 and ps1, which are blunt and rounded distally; cen- tral part of opisthosoma covered with a single, large reticulate area, containing six pairs of setae: c1, c2, d1, e1, f1 and f2 .................................................................................. B. minuta (Kuznetzov, 1971)
- All dorsal idiosomal setae narrowly lanceolate with the exception of broadly lanceolate ro; dorsal reticulation decomposed broken into many small discrete areas.................................................... B. funki (Baker, 1968)
18. All dorsal idiosomal setae broadly lanceolate: expanded on their distal part, but tapering at ends...................... 19
- All dorsal idiosomal setae shaped differently............................................................... 20
19. Dorsal idiosomal setae serrate; reticulate areas of setae c1 and c2 united in a single A(c1)(c2); similarly, d1 and e1 lie in a com- mon area A(d1)(e1)............................................................... B. cooremani (Baker, 1968)
- Dorsal idiosomal setae nude; reticulate areas are divided into A c2, A(c1), A c2, A e1, A(d1), and A e1 .................................................................................................. B. formosa (Cooreman, 1958)
20. Dorsal idiosomal setae very strongly serrated....................................... B. pinnigera (Kuznetzov, 1973)
- Dorsal setae shaped differently, smooth or not strongly serrated................................................ 21
21. “Mountains” type of reticulation (the cuticle forms multitubercular “Mountains” located side by side, and each of them has several sharp edges “running down along the slopes”)........................................................22
- Reticulation flat: no “Mountains” ornamentation present......................................................23
22. Dorsal aspidosoma with regular and polygonal meshes; the larger subcuticular polygons separate from regular meshes; dorsal idiosomal setae slightly serrate...................................................... B. scopa (Kuznetzov, 1975)
- Dorsal aspidosoma with irregular arrangement of meshes, most of which are shaped as very narrow rectangles; no large subcu- ticular polygons; dorsal idiosomal setae nude........................................ B. collicupata (Schiess, 1981)
23. “U”-shaped reticulated area absent....................................................................... 24
- A distinctive “U”-shaped reticulated area A(e1)(f2)(f1), or A(e1)(f2)(f1)(h2)(h1) present............................ 27
24. Dorsal idiosomal setae pointed, straight; four reticulate areas with polygonal reticulation: three on aspidosoma and one cau-
dally, AA0, A[la]0[bo], A[bo]0[la] and A(h1)(h2)(ps1); rest of body surface covered with extremely elongated meshes similar to striation; cross-ties and costulae “X”-shaped.......................................... B. crucifera (Karg, 1973) - Dorsal idiosomal setae narrowly lanceolate, more or less strongly curved or semicircular, gradually tapering to pointed ends; ornamentation different, not divided into four areas; cross-ties “Y”-shaped or triangular; costulae mainly “I”-shaped......25
25. Dorsal idiosomal setae only slightly curved; meshes of reticulum small and different in shape; reticulate areas separated by finer network with more elongated cells; centrally, between A(c1) and A(d1), an area of elongated rectangular reticulation; bothridial setae (bo) with sparsely distributed small serrations.............. B. mantiniensis (Panou & Emmanouel, 1995)
- Dorsal idiosomal setae distinctly curved (usually sabre-shaped), or simply semicircular; meshes of reticulum large, in shape of regular polygons; reticulate areas separated by striation; no discrete area between A(c1) and A(d1); bothridial setae (bo) smooth............................................................................................. 26
26. Dorsal idiosomal setae serrated; empodial hooks (om) absent; gnathosoma hidden under aspidosoma................................................................................. B. relhaniae (Ueckermann & Smith Meyer, 1988)
- Dorsal idiosomal setae seem smooth (at most “rough” under immersion); empodial hooks (om) present, although small; gnathosoma visible from above.......................................................... B. sightori (Baker, 1968)
27. Reticulate areas separated by finer network; frames of cells with rounded pores; dorsal idiosomal setae straight but delicate, very narrowly lanceolate, distinctly pointed and short (12–19); gnathosoma hidden under aspidosoma............................................................................................... .. B. snajperi (Kaźmierski, 1998)
- Reticulate areas separated by striae; frames of cells without rounded pores; dorsal idiosomal setae straight but stout, stiff, equally thick in at least 4/5 of their total length, and becoming narrow near the ends, but not distinctly pointed, and slightly longer (17–25); gnathosoma visible from above............................................................... 28
28. Atypical number of genital setae in adults: five pairs; dorsal idiosomal setae nude................ B. ancora (Karg, 1973)
- Six pairs of genital setae in adults; dorsal idiosomal setae with small, scarcely distributed spikes...................... 29
29. Meshes of reticulation are regular, equal in shape; reticulate areas divided by striae; empodial hooks (om) present but very small; solenidion ω I long, reaching to base of tectals................................. .. B. danutae (Kaźmierski, 1978)
- Meshes of reticulation are irregular, unequal in shape, often elongated in places; reticulate areas divided by very narrow meshes which lie deeper, forming furrows; empodia with triangular basal process only, empodial hooks absent; solenidion ω I very short, not reaching to base of tectals............................. B. persiaensis Akbari, Haddad & Khanjani 2015
30. Body strongly lobed in all stages; almost all opisthosomal setae each inserted in a single lobus.......................31
- Body of adults without strong lobes...................................................................... 32
31. Dorsal idiosomal setae almost straight, nude, equally thick, narrowed distally, but not sharp apically and extremely long: distinctly longer than whiplike bothridial setae.............................................. .. B. atyeoi (Baker, 1968)
- Dorsal idiosomal setae narrowly lanceolate, curved, slightly serrate, pointed, and shorter: distinctly shorter than whiplike bothridial setae.................................................................... B. turrialbensis (Baker, 1968)
32. At least some dorsal idiosomal setae blunt: rod-like, or expanded distally (club-like, spatulate)....................... 33
- Dorsal idiosomal setae pointed: no dorsal idiosomal setae rod-like, club-like, or spatulate........................... 41
33. Club-like or spatulate setae present....................................................................... 34
- All setae rod-like..................................................................................... 39
34. “Mountains–shape” type of reticulation (a cross-section through these “mountains” gives the picture of “stars”, or “craters”)....................................................................................................35
- Another type of reticulation (not “Mountains”).............................................................36
35. Three types of dorsal idiosomal setae: narrowly rod-like (ro, la), strongly spatulate (h1, h2, ps1) and the remaining setae clublike, rounded distally, in shape of spoon (remaining setae); setae ps1, and also h1 and h2 situated ventrally; all setae slightly serrate.......................................................................... B. collyerae (Baker, 1968)
- Two types of dorsal idiosomal setae: club-like (h1, h2 and ps1) and rod-like (all others); at least setae h1 and h2 situated dorsally; all setae nude............................................................... B. stellata (Carmona, 1972)
36. Dorsal idiosomal setae relatively longer: setae f1 extend to bases of h1 ... B. pongolana (Ueckermann & Smith Meyer, 1979)
- Dorsal idiosomal setae relatively shorter: setae f1 reach only halfway to bases of h1 ................................ 37
37. Dorsal idiosomal setae haired; meshes of reticulum extremely elongated: they give the picture of striation subtype “ Paralorryia s. str. ”...................................................................... B. incrustata (Kuznetzov, 1972)
- Dorsal idiosomal setae not haired; meshes irregular, but not so strongly elongated................................. 38
38. Dorsal opisthosomal setae broadly spatulate: ratio of length to maximum width is nearly 5/1; between setae bo and setae c1, as well as in dorso-central region, the meshes are only slightly elongated....................... B. teresae (Carmona, 1970)
- Dorsal opisthosomal setae rod-like; between (bo) and between (c1) the meshes are distinctly elongated............................................................................................... .. B. pulchra (Oudemans, 1929) junior synonym: Tydeus inflatus Momen, 1988
39. Dorsal idiosomal setae straight or slightly curved; reticulation composed of regular meshes; body of immatures not lobed................................................................................ B. reticulata (Oudemans, 1928) junior synonym: L. bedfordiensis Evans, 1952
- Dorsal idiosomal setae evidently bent down to dorsal surface, sometimes “S”-shaped (two points of bending); reticulation composed of irregular meshes; body of immatures lobed..................................... B. stefani (André, 1987)
40. Dorsal side of opisthosoma covered with reticulation of “Mountains” type ............. B. danhidalgoi (Kaźmierski, 1998)
- Another type of dorsal reticulation....................................................................... 41
41. All meshes of reticulation equal in shape, polygonal, approximately as long as broad; dorsal idiosomal setae long: similar in length to bothridial setae (with exception of ps1)............................................................ 42
- Meshes of reticulation irregular, unequal in shape, often elongated in some places; dorsal idiosomal setae not so long: shorter than bothridial setae.................................................................................. 43
42. Meshes in form of extremely large cells; dorsal idiosomal setae sabre-shaped: broad, curved and pointed; setae ps1 different than other dorsal setae: straight and blunt........................................ B. raphignathoides (Berlese, 1910)
- Meshes not extremely large; dorsal idiosomal setae sharply ended but straight, narrow, aciculate; setae ps1 shorter than other dorsal setae, but of the same shape................................................... B. summersi (Baker, 1968)
43. Meshes approximately as long as broad between bothridial setae (bo)........................................... 44
- Meshes longitudinally elongated between bothridial setae (bo)................................................. 50
44. Dorsal idiosomal setae pointed and smooth................................................................ 45
- Dorsal idiosomal setae not pointed (but may be narrowed distally) and not smooth................................. 46
45. Solenidion ωI short (4.5–5.5); not reaching bases of tectal setae tcζ; empodial hooks (om) well developed............................................................................................... ... B. terrestris (Karg, 1973)
- Solenidion ωI longer (7): reaching bases of (tcζ); empodial hooks (om) absent............... B. mattheyi (Schiess, 1981)
46. Bothridial setae (bo) stout, blunt distally and faintly serrate; distance f1-f1 longer than d1-d1 .................................................................................................. B. hughesae (Momen & Sinha, 1991)
- Bothridial setae (bo) whiplike: pointed and nude; distance f1-f1 not longer than d1-d1 ..............................47
47. Caudal part of dorsum with narrow and transversely elongated meshes; body length: ca 350, width: ca 250.............................................................................................. B. electra (Kuznetzov, 1973)
- Caudal part of dorsum covered with polygonal meshes; body length: 250–275, width: 145–175.......................48
48. Dorsal idiosomal setae gradually tapering, covered with clearly visible, rounded, blunt teeth. B. echinulata (Kuznetzov, 1971)
- Dorsal setae almost lanceolate, covered with scarcely visible, sharp teeth........................................ 49
49. Bothridial setae (bo) about three times longer than other dorsal setae; ventral striae between metasternal setae form a “V”- shaped pattern............................................................. B. varsoviensis (Kaźmierski, 1978)
- Bothridial setae (bo) two times longer than other dorsal setae; striae between metasternal setae orientated longitudinally....................................................................... B. adamantia (Panou & Emmanouel, 1995)
50. Idiosoma distinctly elongate: ratio of body-proportion (length/width) 1.8; dorsal idiosomal setae with very small serration, appearing nude; body reticulation extremely irregular......................... B. epimekes (Panou & Kaźmierski, 1996)
- Idiosoma more broad: ratio of body proportion no higher than 1.5; dorsal setae nude...............................51
51. Empodial hooks (om) absent...................................... B. paravarsoviensis (Momen & Lundqvist, 1996)
- Empodial hooks (om) present........................................................................... 52
52. Dorsal idiosomal setae almost straight, aciculate and smooth (length: 20–29); setae f1 reach half way of f1-h1 distance; ratio of body-proportion 1.5; gnathosoma visible from above, not covered by aspidosoma; empodial hooks (om) poorly developed, scarcely visible.................................................................. B. martini (Marshall, 1970)
- Dorsal idiosomal setae slightly curved, narrowly lanceolate and serrate (length: 15–17); setae f1 not reaching half way of f1-h1 distance; body broader, ratio of body proportion 1.23; gnathosoma completely covered by aspidosoma; empodial hooks (om) very well developed, strong..................................................... B. sororcula (Kuznetzov, 1975)
53. With the following four character states: palptarsus stubby, short, not longer than double its width; cheliceral stilettos longer than total length of palptarsus combined with terminal eupathidium; dorsal idiosomal setae short, very narrowly lanceolate, nude and sharply ended, several times shorter than the bothridial setae (bo), which are long and whiplike; reticulation absent (rarely a small AA0 near the anterior projection of aspidosoma)................................................ 54
- Lacking at least one of mentioned above combination of features............................................... 58
54. Palptarsus spherical (ratio of length to width 1:1); palptarsus eupathidium (p’ζ) almost straight and acute, without terminal cross-piece; striation type “ Tydeus ”............................................ B. globulipalpa (Kaźmierski, 1998)
- Palptarsus longer than its breadth; palptarsus eupathidium (p’ζ) curved and with wedge-like cross-piece on its peak; striation variable............................................................................................ 55
55. Palptarsus 1.5 times longer than its width (ratio 1.5:1); striation type “ Tydeus ”............... B. volgini (Kuznetzov, 1973)
- Palptarsus two times longer than its width (ratio 2:1); striation type variable...................................... 56
56. Body elongated as usual: ratio of idiosomal length/width 1.8–2.0........................ B. aberrans (Oudemans, 1932)
- Body broad: ratio of idiosomal length/width 1.3–1.4......................................................... 57
57. Empodial hooks (om) in form of small thorn; solenidion ωI broadly lanceolate; area AA0 absent; inconsistency of arrangement of dorsal striae: striation type “ Tydeus ”, as well as “ Paralorryia ”, but sometimes “Mesoparalorryia-incerta” or “ Paralorryia s. str ”............................................................................. B. brevicula (Koch, 1838) junior synonym: Tydeus curtus Berlese, 1910
- Empodial hooks (om) absent; solenidion ωI slender, uniformly narrow; small area AA0 present; striation type “ Tydeus ”........................................................................... B. frekei (Momen & Lundqvist, 1996)
58. Ornamentation type “ Paralorryia s. str. ”, ”Mesoparalorryia”, “Biparalorryia”, “Biparalorryia-incerta”, “Mesoparalorryia- incerta”, “Veniparalorryia”, “Paravenilia”, (Figure 1.B–I)..................................................... 59
- Another type of ornamentation......................................................................... 158
59. Palptarsus eupathidium not broadened or cleft distally, without goblet shape, “T”-shaped, crescent-shaped piece or wedge-like tip................................................................................................ 60
- Palptarsus eupathidium (p’ζ) becoming narrower toward the subapically, but broadened or cleft distally, with goblet-shape, or “T”-shape tip, or terminated with a crescent-shaped piece or wedge-like cross-piece................................88
60. Palptarsus eupathidium (p’ζ) rod-like and rounded distally..................................................... 61
- Palptarsus eupathidium (p’ζ) not rounded distally: acute, thorn-, spike- or blade-like in shape........................82
61. All striae between setae c1 run longitudinally (subtype “Biparalorryia”), or at least the section c1-c1 is perpendicular to the striae only close to the bases of setae (“Biparalorryia-incerta”).................................................62
- Transverse striation between setae c1 .....................................................................68
62. Reticulate area on front of aspidosoma (AA0) present........................................................ 63
- Reticulation absent (no AA0 present)..................................................................... 64
63. Reticulate area AA0 consists of meshes strongly elongated in various directions; ventral striation between setae mt longitudinal: striae form a narrow “V”-pattern; dorsal setae moderately serrated........... B. filiformis (Momen & Lundqvist, 1996)
- Reticulate area AA0 consists of multiangular meshes (more-less as long as broad); ventral striation between setae mt transverse: striae form an obtuse “U”-pattern; dorsal setae strongly serrated.................... B. szeptyckii Kaźmierski 2009
64. Palptarsus as long as its eupathidium (p’ζ); cheliceral stilettos equal in length with combined length of palptarsus and (pζ); dorsal idiosomal setae with small, scarcely visible serration......................................................65
- Palptarsus longer than its eupathidium; cheliceral stilettos shorter than combined length of palptarsus and (p’ζ); dorsal idiosomal setae strongly serrated or plumose ..................................................................66
65. Striation subtype “Biparalorryia-incerta” (Figure 1 G); bothridial setae (bo) with slightly haired bases.................................................................................................... B. innuba (Livshitz, 1973)
- Striation subtype “Biparalorryia” (Figure 1 D); bothridial setae (bo) completely smooth............. B. carya (Baker, 1968)
66. Distance between setae h1 (78) much longer than distance f1-f1 (ca 50); solenidion ωII stick-like, 4.4 long; solenidion ω I straight; dorsal idiosomal setae plumose, about 20–24 hairs set in one longitudinal row along main setal axis; striation subtype “Biparalorryia”................................................................ B. nobila (Kaźmierski, 1998)
- Distance h1-h1 more or less equal in length with f1-f1; solenidion ωII sphere-shaped, very short (1–1.2); solenidion ωI bent; dorsal setae with sharp teeth, but not plumose, about 10–12 teeth in one row along main setal axis; striation subtype “Biparalorryia-incerta”....................................................................................... 67
67. Claws (ol) with pilose ventral edges; setal serrations long: distinctly longer than setal stem; cheliceral stilettos (ca 29) much longer than palptarsus (ca 19); seta ft ’ (ca 24) on tarsus I only slightly shorter than ft ’’ζ (ca 31)................................................................................................. .. B. draciformis (Kaźmierski, 1998)
- Claws (ol) nude; setal serrations triangular, not long: shorter than setal stem; cheliceral stilettos approximately as long as palptarsus (ca 20); seta ft ’ as long as 1/2 length of ft ’’ζ............................... B. scabriseta (Kuznetzov, 1972)
68. Striation subtype “Paravenilia” (Figure 1 I)................................................................. 69
- Striation subtype “ Paralorryia s. str ” or “Paralorryia-incerta” (Figure 1 C, F)...................................... 70
69. Dorsal surface of aspidosoma completely covered with longitudinal striation; dorsal setae only delicately serrated; setae ps1 as long as the longest opisthosomal setae; setae u ’’ on tarsus I well developed: stout and thicker than the remaining tarsal setae......................................................................... B. bakeri (Zaher & El Bagoury, 1981)
- Anterior dorsal surface of aspidosoma covered with transverse striae; dorsal setae strongly serrated; setae ps1 shortest of the opisthosomal setae; seta u’’ normally developed and similar to u’......................... B. matador Kaźmierski, 2008
70. Ornamentation with reticulate elements................................................................... 71
- Ornamentation without reticulate elements................................................................. 77
71. Reticulate elements on aspidosoma and opisthosoma......................................................... 72
- Reticulate elements limited to AA0 on aspidosoma only...................................................... 73
72. Palptarsus eupathidium (p’ζ) as long as palptarsus; ventrally, between setae mt, striation “V”-shaped................................................................................... B. reticuloinsignia (Kaźmierski & Panou, 1997)
- Palptarsus eupathidium (p’ζ) shorter than palptarsus; ventrally, between setae mt, striation almost transverse................................................................................ B. alykaenae (Panou & Emmanouel, 1996)
73. Cheliceral stilettos as long as palptarsus together with (p’ζ)...................................................74
- Cheliceral stilettos shorter than total length of palptarsus and (p’ζ).............................................. 75
74. Ventral striae longitudinal between setae mt; solenidion ωI longer than width of tarsus I; dorsal idiosomal setae relatively short: 14–16 (with exception of shorter ps1); Body length (female): ca 310......................... B. insignia (Livshitz, 1973)
- Ventral striae between setae mt arranged in a “V” shape; Solenidion ωI slightly longer than 1/2 width of tarsus I; Dorsal setae longer: 19–24 (setae ps1: ca 15); Body length (female): 340–415................... B. grandiinsignia (Kaźmierski, 1991)
75. Palptarsus and its terminal eupathidium (p’ζ) equal in length.............................. B. unigena (Livshitz, 1973) junior synonym: Tydeus octomaculatus Momen & Lundqvist, 1995
- Palptarsus longer than its terminal eupathidium............................................................. 76
76. Serrations of idiosomal dorsal setae triangular and short: distinctly shorter than the width of stem of seta; length of dorsal setae: 22–24; ratio of length to width of palptarsus ca 5:2; striation subtype “Paralorryia-incerta”; body length of female: ca 375............................................................................. B. nuncia (Livshitz, 1973)
- Serrations of idiosomal dorsal setae much longer, sharp: not shorter than width of stem of seta; length of dorsal setae: 12–16; ratio of length to width of palp tarsus ca 7:2; striation subtype “ Paralorryia s. str. ”; Body length of female: ca 275.......................................................................................... B. lena (Kuznetzov, 1973)
77. Gnathosoma visible from above; striation subtype “Paralorryia-incerta”; dorsal idiosomal setae smooth and unequal in shape: aspidosomal setae pointed, opisthosomal setae blunt; setae f2, h1, h2 and ps1 almost club-like, rounded distally............................................................................ B. vinea (Ueckermann & Smith Meyer, 1979)
- Gnathosoma hidden under aspidosoma; striation subtype “ Paralorryia s. str. ”; dorsal idiosomal setae not smooth, subequal in shape and all sharp distally............................................................................. 78
78. Dorsal idiosomal setae straight, relatively long: f1 longer than distance between f1 and h1; c1 longer than 1/2 length of distance c1-c1; d1 longer than 1/2 distance d1-d1; f1 longer than 1/2 distance f1-f1; h1 subequal in length with h1-h1 distance.......
................................................................................. B. mansoni (Baker, 1968) - Dorsal idiosomal setae slightly bent and shorter: f1 not longer than distance f1-h1; setae c1, d1, f1 and h1 not longer than 1/2 distance between two “sister” setae, respectively............................................................ 79
79. Anterior part of aspidosoma with transverse striae, i.e. parallel to anterior aspidosomal projection..................... 80
- Entire surface of aspidosoma (jointly with its anterior part) longitudinally striated.................................81
80. Dorsal idiosomal setae relatively short (14–18); solenidion ωI (ca 9) longer than half width of tarsus I; distance h1-h1 longer than d1-d1 and c1-c1............................................................ B. flamma (Kuznetzov, 1973)
- Dorsal idiosomal setae longer (23–26); solenidion ωI shorter (ca 6), equals to half width of tarsus I; distance h1-h1 shorter than d1-d1 and c1-c1 ................................................................ B. fernando Kaźmierski, 2008
81. Dorsal idiosomal setae of medium length: longer than width of leg segments; solenidion ωI much shorter than width of tarsus I......................................................................... B. chapultepecensis (Baker, 1943)
- Dorsal idiosomal setae very short: shorter than width of leg segments; solenidion ωI as long as width of tarsus I.......................................................................................... B. stegmaieri (Baker, 1968)
82. Reticulation forms a single, longitudinally elongated area in centre of aspidosoma, between setae ro, la and bothridial setae (bo)................................................................. B. fabae (El Bagoury & Momen, 1988)
- No reticulation present................................................................................83
83. Gnathosoma visible dorsally............................................................................ 84
- Gnathosoma concealed dorsally (covered by aspidosoma).....................................................87
84. Dorsal idiosomal setae serrated; bothridial setae (bo) simple, stiff and blunt; palptarsus eupathidium (p’ζ) blade-like................................................................................. B. brusti (Momen & Sinha, 1991)
- Dorsal idiosomal setae smooth; bothridial setae (bo) smooth and flabby, filiform, or expanded and furcated distally; tarsal eupathidium (p’ζ) blade-like or “T” shaped distally.......................................................... 85
85. Palpal eupathidium “T”-shaped distally................................ B. vianensis (Khanjani & Ueckermann, 2003)
- Palpal eupathidium (pζ) blade-like....................................................................... 86
86. Bothridial setae filiform, about four times as long as remaining aspidosomal setae; all dorsal setae similar in shape, spike-like; palpal eupathidium (p’ζ) uniformly narrow and subequal in length to palptarsus; striation subtype “Biparalorryia”........................................................................... B. artichokei (El Bagoury & Momen, 1989)
- Bothridial setae expanded and trifurcated distally; dorsal idiosomal setae unequal in shape: setae f1, f2, h1, h2 and ps1 expanded distally and blunt, other setae tapered; palptarsus eupathidium thickened for three fourths of its length and becoming narrow at tip, twice as long as palptarsus; striation subtype “Paravenilia”..... B. furcata (Ueckermann & Smith Meyer, 1979)
87. Palptarsus (ca 20) longer than its terminal eupathidium (ca 14); dorsal idiosomal setae sickle-like, bent, 22–25 long; setae bo no more than two times longer than other dorsal setae................................ B. latiuscula (Kuznetzov, 1972)
- Palptarsus not longer than its eupathidium (ca 14); dorsal setae not bent, 17–18 long; bothridial setae (bo) more than three times longer than other dorsal setae................................................... B. nasata (Schiess, 1981)
88. Striation subtype “Paralorryia-incerta”, “ Paralorryia s. str., “Veniparalorryia” or “Paravenilia”........................89
- Striation subtype “Mesoparalorryia” or “Mesoparalorryia-incerta” (transverse striae between setae d1) (Figure 1 B, E)....146
89. Dorsal ornamentation with reticulate elements..............................................................90
- Dorsal ornamentation without reticulate elements.......................................................... 127
90. Reticulate elements on aspidosoma and opisthosoma, or on opisthosoma only..................................... 91
- Reticulate elements on aspidosoma only................................................................. 110
91. Dorsal posterior part of opisthosoma with large reticulate area A(h2)(h1)(ps1).................................... 92
- A(h2)(h1)(ps1) absent................................................................................ 106
92. Aspidosoma without reticulum; dorsal setae rod-like, blunt, slightly serrated, approximately as long as 1/2 distance between their bases................................................................... B. argentinensis (Baker, 1968)
- Aspidosoma with reticulate elements; dorsal setae variable in shape and length.................................... 93
93. Aspidosomal reticulum limited to AA0, thus, no aspidosomal setae inserted in reticulated area.......................94
- Aspidosomal reticulum with multiple elements, or if with one element only, then with two pairs of setae inserted in it.....97
94. Besides AA0 and A(h2)(h1)(ps1) reticulate ornamentation forms a small regions: A0[c2], A[c2]0, A e1, A e1, A f1, A f1, A f2, A f2; dorsal idiosomal setae short, narrowed distally but not sharp, with blunt scale-shaped serrations................................................................................................... B. fibra (Kuznetzov, 1975)
– AA0 and A(h2)(h1)(ps1) occur only...................................................................... 95
95. Dorsal idiosomal setae long: longer than distance between their bases and longer than bothridial setae (bo); solenidion ωI long: about as long as width of segment.................................................... B. sapodilla (Baker, 1968)
- Dorsal idiosomal setae not so long: shorter than the distance between their bases (with exception of h1, h2 and ps1) and shorter than bothridial setae; solenidion ωI shorter than the width of segment...........................................96
96. Dorsal idiosomal setae serrate and sharp distally; solenidion ωI not as long as 1/2 width of segment; empodia with hooks (om)............................................................................. B. peruviensis (Baker, 1968)
- Dorsal idiosomal setae smooth and blunt distally; solenidion ωI longer than 1/2 width of segment; empodia without hooks (om).......................................................................... B. parafibra (Momen, 1988)
97. Dorsal idiosomal seta very delicately serrated and blunt: rounded distally; meshes of reticulation between setae ro and bo elon- gated longitudinally...................................................................................98
- Dorsal setae strongly haired and pointed; aspidosomal meshes about as long as broad, polygonal......................99
98. Setae la lie outside reticulate area (thus with A(ro)(bo )); setae ps1 situated dorsally; dorsal idiosomal setae long: distinctly lon- ger than 1/2 length of bothridial setae; setae f1 longer than distance f1-h1; empodial hooks (om) present..................
................................................................................ B. mexicana (Baker, 1968) - Setae la lie on the verge of reticulate area, but not outside it (thus with A(ro)(la)(bo )); setae ps1 situated terminally; dorsal idiosomal setae shorter: about as long as 1/2 length of (bo); setae f1 slightly shorter than distance f1-h1; empodial hooks absent................................................................................... B. berryi (Baker, 1968)
99. Reticulation limited to A(ro)(la)(bo) and A(h1)(h2)(ps1) only................................................. 100
- A few reticulate elements around setae f1 and f 2 in addition to A(ro)(la)(bo) and A(h1)(h2)(ps1)..................... 101
100. Idiosomal length 380–400, width 260–300; palptibia setae unequal in length: t ’ two times longer than t ’’; dorsal idiosomal setae covered with hairs a few times longer than the width of setal stem; setae f1 subequal in length to 1/2 distance f1-h1 ............................................................................. B. jesionowskii (Kaźmierski, 1998)
- Idiosomal length 290–300, width 170–210; palptibia setae subequal in length; dorsal idiosomal setae with short hairs; setae f1 nearly as long as f1-h1 distance................................................. B. nesziyyonensis (Gerson, 1968)
101. Empodial hooks (om) absent; dorsal idiosomal setae with sparsely distributed hairs; three reticulate areas on aspidosoma:
A(ro)(la)(bo) and two smaller areas A, A opisthosoma with three reticulate areas: very small A e1, A e1 and vast A(h2)(h1)(ps1) or A(ro) (la) (bo), A(f1, f2) and A(h2)(h1)(ps1); setae ps1 situated on dorsal side.................... 102 - Empodial hooks present; dorsal setae densely haired; somewhat different arrangement of reticulate regions; setae ps1 situated terminally or on ventral side........................................................................... 104
102. No reticulate area on A(f1, f2); dorsal setae slightly serrated; solenidion (ωI) more than 1/2 width of segment................................................................................ B. aegyptiaca (Rasmy & El Bagoury, 1979)
- Reticulate area on A(f1, f2); dorsal setae smooth; solenidion (ωI) shorter than or equal to the width of tarsus I.......... 103
103. Reticulate area on aspidosoma and around setae ro, la and bo; all dorsal setae not broadly lanceolate but with longitudinal groove............................................................... .. B. scutatus Silva, Rocha & Ferla 2013
- Reticulate area on the aspidosoma and only nearby of setae bo; all dorsal setae club-shaped, without longitudinal groove............................................................................. B. lorenzatus Silva & Ferla (2016)
104. Gnathosoma completely hidden under aspidosoma; setae ro (ca 18) shorter than la and distinctly shorter than remaining dorsal setae........................................................................ B. concinna (Oudemans, 1929)
- Gnathosoma visible from above; setae ro longer than la and indistinctly shorter than remaining setae................. 105
description: Published as part of Silva, Guilherme Liberato Da, Metzelthin, Maicon Henrique, Silva, Onilda Santos Da & Ferla, Noeli Juarez, 2016, Catalogue of the mite family Tydeidae (Acari: Prostigmata) with the world key to the species, pp. 1-68 in Zootaxa 4135 (1) on pages 41-47, DOI: 10.11646/zootaxa.4135.1.1, http://zenodo.org/record/255684