Anemesia infumata Zonstein 2018, sp. nov.
Creators: name: Zonstein, Sergei
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Cyrtaucheniidae
Anemesia
Anemesia infumata

description: Anemesia infumata sp. nov.
urn:lsid:zoobank.org:act: E256AE02-439D-4044-BB6C-5355A94CA677 Figs 13, 25, 36–37, 60, 74–75, 86, 102, 114, 130, 185, 217–219, 255–257, 287–288, 322–323, 345, 364, 373
Diagnosis
Anemesia infumata sp. nov. differs from A. incana by a considerably narrower clypeus and noticeably larger eyes in both males and females (Figs 60, 74–75; cf. Figs 59, 73). From the most similarly-looking A. infuscata sp. nov., males of A. infumata sp. nov. differ in the more tapering embolus which arises closer to the retrolateral side of the palpal organ (Figs 217–219; cf. Figs 220–223), while the conspecific females differ by their short and uniformly stout spermathecae (Figs 255–257; cf. Figs 258–265).
Etymology
The specific epithet is derived from the Latin adjective ‘ infumatusi ’, meaning ‘smoked’, referring to the mostly darkened (blackened) colouration of these spiders. The gender is feminine.
Material examined
Holotype
TAJIKISTAN: Ƌ, Panj Karatau Mts, surroundings of Mt Astana, 1400–1600 m, 37°23′ N, 69°15′ E, 23 Apr. 1991, S. Zonstein leg. (SMNH).
Paratypes (1 Ƌ, 6 ♀♀)
TAJIKISTAN: 1 Ƌ, 5 ♀♀, same collection data as for the holotype but 22–24 Apr. 1991, S. Zonstein and S. Ovchinnikov leg. (SMNH); 1 ♀, same collecting date as for preceding but 0.3 km E of summit, 1670 m, 37°23.2′ N, 69°14.8′ E, 4 May 2015, S. Zonstein leg. (SMNH).
Additional material
TAJIKISTAN: 2 ♀♀, same ridge, Akkutal Pass 35 km NNE of Panj Town, ca 800 m, 37°18′ N, 69°18′ E, 23–25 Apr. 1967, E. Andreeva leg. (MIZW).
Description
Male (holotype)
HABITUS. See Fig. 13.
MEASUREMENTS. TBL 18.30, CL 6.65, CW 5.88, LL 0.58, LW 1.22, SL 3.75, SW 3.39.
COLOUR. Carapace intensely dark mahogany, with darker brown clypeus, margins, thoracic grooves, and numerous small spots forming reticulate pattern on mahogany background; eye tubercle brownish black; chelicerae, palps, leg I entirely, leg II from femur to tibia, femora III and IV dark chestnut brown; other segments of legs III and IV, and metatarsus and tarsus II light to medium brownish orange; maxillae orange, sternum and labium medium brownish orange; abdomen greyish, dorsally with dark coffee brown pattern consisting of median longitudinal stripe, very broad in anterior half, but narrow and fused with several paired chevrons in posterior half; spinnerets pale brownish yellow.
PROSOMA. Clypeus and eye tubercle as in Fig. 60. Eye diameters and interdistances: AME 0.18(0.26), 0.38, 0.24, 0.18, AME–AME 0.20(0.12), ALE–AME 0.19(0.15), ALE–PLE 0.16, PLE–PME 0.04, PME–PME 0.49. Cheliceral rastellum composed of ca 40 stout bristles lacking tips and located in front of fang base and on weakly developed low mound. Cheliceral furrow with 7–8 promarginal teeth and 7–10 smaller retromarginal teeth each (Fig. 86). Sternum, labium and maxillae as shown in Fig. 86. Sternal sigilla poorly defined; posterior sigillum divided into two separate parts. Each maxilla with 12 cuspules confined to probasal maxillary edge.
LEGS. Tibia and metatarsus I as shown in Fig. 130. Scopula entire and distal on metatarsus I, mixed and distal on metatarsus II, very narrowly divided on tarsus I, narrowly divided on tarsus II, widely divided on tarsi III, absent on tarsi IV. Trichobothria: 2 rows of 10–11 each on tibiae; 16–19 on metatarsi; 13–14 on tarsi, 11 on cymbium. PTC I–IV with 8–10 teeth on each margin.
SPINATION. Palp: femur d4, pd3, rd3–4; patella p1; tibia p4, v7–8 stout bristles; tarsus d5. Leg I: femur d5, pd3, rd3–4; patella p1; tibia p3, v6–7+m; metatarsus v4–5. Leg II: femur d5, pd4, rd2–4; patella p1–2; tibia p3, v8–9; metatarsus p2, v7. Leg III: femur d4, pd3, rd3; patella p3, r2; tibia d1, p3, r3, v7; metatarsus d2, p7, r3, v11–12; tarsus p6. Leg IV: femur d5, p3, r3; patella r1–2; tibia r3, v7–8; metatarsus d2, p4, r2, v13–15; tarsus pv8–9, r1–2. Tarsi I and II aspinose.
PALP. Tibia, cymbium and palpal organ as in Figs 185, 217–219. Tibia cylindrical with numerous thick ventral bristles (Fig. 185). Embolus tapering, slightly curved, embolic tip with small membranous keel (Figs 217–219).
SPINNERETS. See Fig. 287. PMS: length 0.63, diameter 0.31. PLS: maximal diameter 0.64; length of basal, medial and apical segments 1.38, 0.74, 0.91; total length 3.03; apical segment shortly digitiform.
LEG MEASUREMENTS. Ƌ(♀)
Female (paratype)
HABITUS. See Figs 25, 36–37.
MEASUREMENTS. TBL 25.10, CL 8.19, CW 6.51, LL 0.92, LW 1.73, SL 4.24, SW 4.07.
COLOUR. Almost identical to that in male.
PROSOMA. Clypeus and eye tubercle as in Fig. 74. Eye diameters and interdistances: AME 0.19(0.33), ALE 0.46, PLE 0.40, PME 0.25, AME–AME 0.23(0.09), ALE–AME 0.23(0.16), ALE–PLE 0.14, PLE– PME 0.03, PME–PME 0.59. Cheliceral rastellum composed of numerous spikes located in front of fang base and on low mound. Each cheliceral furrow with 7 promarginal teeth and 6–7 smaller retrolateral teeth. Sternum, labium and maxillae as shown in Fig. 102. Sternal sigilla poorly defined; posterior sigillum fragmentary. Each maxilla with ca 20 cuspules.
LEGS. Scopula entire and distal on metatarsus I, distal and widely divided on metatarsus II, entire on palpal tarsus and tarsus I, widely divided on tarsus II, elsewhere absent. Trichobothria: 10–11 in each row on tibiae; 17–21 on metatarsi; 16–17 on leg tarsi, 14 on palpal tarsus. Palpal claw with 4 promarginal teeth. PTC I and II with 5–7 teeth on each margin, PTC III–IV with 6–7 teeth, respectively.
SPINATION. Palp: patella p1; tibia p3–4, v22–25; tarsus v4. Leg I: femur pd1; tibia p2, v5; metatarsus v4. Leg II: femur pd1–2; patella p1; tibia p2, v5; metatarsus p1, v7–9. Leg III: femur p0–2; patella p5, r1; tibia d1, p3, r2, v7–8; metatarsus d1, pd3, r6, v9; tarsus p2. Leg IV: tibia r2, v8–10; metatarsus p3, r2, v12–15; tarsus p4. All femora with 5–7, 2–3, and 3–4 long bristles instead of true spines, located medially, pro- and retrodorsally, respectively; patellae I and IV, and tarsi I and II aspinose.
SPERMATHECAE. Entire, short and evenly stout (Fig. 255).
SPINNERETS. See Fig. 288. PMS: length 0.78, diameter 0.43. PLS: maximal diameter 0.89; length of basal, medial and apical segments 1.46, 0.73, 0.96; total length 3.15; apical segment triangular to shortly digitiform.
Variation
The length of the carapace varies from 6.65 to 6.78 in males and in females from 5.58 to 8.09. There are small variations in the eye size and arrangement as shown in Figs 74–75. The shape of the palpal organ in both collected male congeners looks practically the same. The configuration of the spermathecae does not show any noticeable difference (Figs 255–257).
Habitat
As in A. incana (see above); however, A. infumata sp. nov. has been hitherto encountered in low and middle montane areas between 800 and 1700 m, with slopes covered by rarely standing trees (Acer, Crataegus), shrubs and steppe vegetation (Figs 322–323).
Distribution
Known currently from a few localities in South Tajikistan only, see Fig. 273.
Note
Two females from Akkutal Pass deposited in MIZW were collected, according to the cover label, by K. Andrejeva-Prószyńska, on the same date as the type series of Brachythele karatauvi: 23–25 Apr. 1967. It is likely, however, that these data are correct and that both groups of spiders were sampled during the same short-distance collecting trip. The measured air distance between Akkutal and Vahsh Karatau Mts is only 60–90 km, depending on the localities.
description: Published as part of Zonstein, Sergei, 2018, A revision of the spider genus Anemesia (Araneae, Cyrtaucheniidae), pp. 1-100 in European Journal of Taxonomy 485 on pages 42-44, DOI: 10.5852/ejt.2018.485, http://zenodo.org/record/3829992