Arachnospila (Ammosphex) yasumatsui Wolf and Moczar 1972
Creators: name: Loktionov, Valery M.
name: Lelej, Arkady S.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pompilidae
Arachnospila
Arachnospila yasumatsui

description: Arachnospila (Ammosphex) yasumatsui Wolf and Móczár, 1972
(Figs 36, 37, 51, 74, 94, 122, 123)
Arachnospila (Boreopompilus) yasumatsui Wolf and Móczár, 1972: 246 (3), 256 (holotype, 3, " Mongolia, Chövsgöl aimak, 3 km W von Somon Burenchaan, 1650 m, 16.VII.1968 (Z. Kaszab)" [Hungarian Natural History Museum, Budapest], examined).
Arachnospila yasumatsui: Ma & Li 2010: 76, Ƥ.
Diagnosis of male. The male of this species resembles males of Arachnospila (Ammosphex) wolfi Lelej, 1995 and A. (A.) trivialis (Dahlbom, 1843) by having flattened hypopygium with short erect scattered setae (Figs 36, 37), but clearly differs from both of them by having penial valve strongly narrowed preapically and acuminate apically (Fig. 51 vs. 47, 52). Genitalia as in Fig. 51.
Diagnosis of female. The female of this species resembles that of Arachnospila (Ammosphex) kurzenkoi Lelej, 1995 by having lateral surface of propodeum without any long erect setae and by very short anterior side of 3r-m cell of fore wing (sometimes 3r-m cell petiolate), but differs by having apical spine of first protarsomere 0.7–0.8 × length of second protarsomere (0.5–0.6 × in A. (A.) kurzenkoi).
Description. FEMALE (hitherto unknown). Body length 6.3–8.2 mm. Fore wing length 5.1–5.6 mm. Head width 1.1 × its height. Ocelli small, POD/OOD 1.0–1.4. Ratio of genal median width to eye median width (lateral view) 0.5–0.8. Ratio of eye median width to half width of frons (frontal view) 0.7–0.8. Clypeus weakly longitudinally convex, anterior border straight or weakly emarginate, with shiny rim (Fig. 74). Flagellomere 1 length 3.5– 4.0 × its width. Relation of scape, pedicel and first two flagellomeres 30–33: 11–12: 38–42: 35–37. Apical flagellomere acuminate. Mesosoma length dorsally 1.4–1.5 × its width. Pronotum median length 0.4 × its median width, posterior pronotal border obtuse-angulate. Metanotum median length 1.5–1.8 metapostnotum median length. Metapostnotum matt, with 2–3 transverse striae anteriorly and indistinctly strigulate posteriorly (Fig. 94). Spines of tarsal comb long, tarsomere 1 with three spines of tarsal comb, tarsomere 2 and 3 with two spines, tarsomere 4 with one spine, tarsomere 5 without spines; apical spine of tarsomere 1 0.7–0.8 × length of protarsomere 2; apical spine of tarsomeres 2 0.7–0.9 × length of tarsomere 3. Wings infuscated with darker apical portion, venation of fore wing as in Figs 122, 123.
Frons with 7–11 long erect dark brown setae. Fore coxa anteriorly with 5–7 long more strong erect dark brown setae. Gena and propleura with scattered pale brown or gray long erect setae. T6, S4–S6 apically with long erect dark brown setae. Propodeum lacking setae or with few short soft setae. Head, mesosoma and propodeum with iridescent gray-brownish sparse pubescence. Propodeum with silver pubescence. Legs with brownish micropubescence. Metasoma with gray micropubescence. Body regularly micropunctate; frons matt puncticulate, other parts of body finely shagreened. Body and legs black. Mandible pale brown medially and dark brown apically; T1 (except basal portion), basal half of T2 ferruginous-red.
Material examined. RUSSIA. Buryatia: 2 Ƥ 4 3, Gusinoye Lake, Baraty, 7.VIII.1984, 26.VII.2007; 3 3, Naushki, 5.VIII.1984, 31.V, 1.VI.2008; 2 3, Kyakhta, 28.VII.1977; 1 3, Ust-Kiran, 27.V.2008. Irkutsk Prov.: 1 3, Angarsk, 8.VIII.1994; 4 Ƥ 4 3, 15 km E Ust-Orda, Ordinsk, 31.VII, 1–4.VIII.1994 [IBSS].
Distribution. * Russia (Buryatia, Irkutsk Prov.), Mongolia, China (Hebei) (Wolf & Móczár 1972; Ma & Li 2010).
Biology. Inhabits steppe areas.
description: Published as part of Loktionov, Valery M. & Lelej, Arkady S., 2011, Review of the subgenus Ammosphex Wilcke, 1942 of the genus Arachnospila Kincaid, 1900 (Hymenoptera: Pompilidae) of the Russian Far East and East Siberia, pp. 1-30 in Zootaxa 3137 on pages 25-26, DOI: 10.5281/zenodo.202611