Anystipalpus Berlese
Creators: name: De Moraes, Gilberto J.
name: Britto, Erika P. J.
name: Mineiro, Jefferson L. De C.
name: Halliday, Bruce
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Ascidae
Anystipalpus

description: Anystipalpus Berlese
FEMALE
Gnathosoma. Anterior margin of epistome subtriangular to convex, denticulate; dorsal surface of epistome with a continuous or interrupted transverse row of denticles curved posteriorly in the middle. Seta h1 longer than h2, h3 and pc setae; insertion of h2 usually distinctly posterior to insertion of h3, but not in longitudinal line. Inner palp trochanter seta up to twice as long as outer seta, but not greatly elongate. Palps elongate, about half as long as leg I; palp trochanter longer than femur; palp tibia 2–3 times as long as tarsus. Deutosternum moderately wide, with seven rows of denticles delimited by subparallel lateral lines (extending only from first to sixth row in A. livshitzi (Eidelberg)); anterior five rows each usually only with a large central denticle, sixth and seventh rows slightly widened, in some species with several denticles. Corniculi 2–3 times as long as their basal widths, with pointed tips, subparallel; salivary styli with distinct blunt or truncate apex. Palp tarsal apotele two-tined. Cheliceral digits of similar lengths; fixed digit with sparsely to evenly multidenticulate row of fine teeth along distal third of inner surface and an offset subapical tooth; dorsal face of fixed digit sometimes with ridge-shaped cover or lobular projection above antiaxial masticatory surface of movable digit; movable digit with two teeth in addition to apical tooth, sometimes with minute additional apical tooth; with a vestigial ventral grooved projection.
Idiosoma. Ovoid. Dorsum: podonotal and opisthonotal shields not fused, both reticulate, without transverse and nearly straight lines or delineated strip along lateral margins. Anterior end of podonotal shield deflexed, hiding bases of j1 and z1 and apex of peritreme; podonotal shield usually with 23 pairs of setae, including two pairs of supernumerary setae between s3 and s4. Opisthonotal shield with 15 pairs of setae, of which Z5 inserted behind J5; without posterior tubercles. Unsclerotised lateral to posteroventral cuticle with 13–16 pairs of setae (r - R and UR), including r3, which is similar to neighbouring setae. Dorsal and lateral setae of idiosoma of similar shape or some setae of the anterocentral region distinct from (usually stouter than) others; setae at most as long as distance to subsequent setae; setae of unsclerotised lateral cuticle usually slightly shorter than dorsal shield setae. Vent er: a pair of narrow, lightly sclerotised presternal platelets, often fused with anterior margin of sternal shield. Sternal shield usually with three pairs of setae (st1–st3; st3 occasionally inserted on unsclerotised cuticle) of similar lengths (or st1 slightly longer) and at most a pair of lyrifissures, iv2 (iv1, iv3, and sometimes iv2 vestigial or absent); st 1 may be inserted on an anterior band of lightly sclerotised cuticle; st2 about equidistant to st1 and st3 or slightly closer to st3; posterior shield margin either undulate or varying from concave to slightly convex. Seta st4 inserted on unsclerotised cuticle. Genital shield long, not wide enough to include iv5, but including st5; posteriorly convex. Two pairs of metapodal plates, the anterior smaller, close to or fused with posterior edge of peritrematic shield. A pair of platelets between genital and anal shields. Opisthogaster with ten pairs of setae on unsclerotised cuticle, in addition to circumanal setae; with a pear-shaped anal shield (narrower end behind); para-anal setae inserted at level of mid-length of anal opening, about as long as post-anal seta. Anal opening not enlarged, slightly over 1/3 of shield length, closer to anterior than to posterior shield margin. Endopodal shield fused with sternal shield in region between coxae I–II, fused with sternal shield or reduced to an elongate platelet between coxae II–III, and reduced to two platelets behind sternal shield. Exopodal shield distinct along coxae II–IV.
Peritreme. Extending from stigma to level of z1, about as wide as or slightly narrower than diameter of stigma. Peritrematic shield wide, even behind stigma, usually broadly fused with dorsal shield at level of s1 and continuously fused with exopodal shield along coxae II–IV.
Legs. Leg I without pretarsus; other legs with pretarsi. Paradactyli rudimentary. Setation of legs I–IV, genu: 13, 11, 9, 9; tibia: 13, 10, 8, 9. Leg II not distinctly thickened. Tarsus I with four long attenuated apical setae, two or three moderately long dorsal subapical setae and several other setae on mid- and basal-thirds somewhat longer than setae on tibia and genu of same leg. Setae of coxae I–II, trochanter I, femur I, genu I and tarsus II sometimes spineshaped; other leg setae simple, unmodified, not elongate as macrosetae.
MALE: unknown.
description: Published as part of De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1) on pages 16-17, DOI: 10.11646/zootaxa.4112.1.1, http://zenodo.org/record/399477