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

description: Arachnospila (Ammosphex) orientausa Loktionov and Lelej, sp. nov.
(Figs 26, 27, 50, 67, 87, 110, 111)
Diagnosis of male. The male of this species is very similar to that of Arachnospila (Ammosphex) ausa (Tournier, 1890) by having similar shape of hypopygium, but clearly differs by having apical half of volsella with short setae (without setae in A. (A.) ausa), by penial valve apically without spicules (with three spicules in A. (A.) ausa), by gonostyli subbasally with short erect setae (with long erect setae in A. (A.) ausa), by ferruginous-red T2 basally only (ferruginous-red T1, T2 and basal portion of T 3 in A. (A.) ausa). The differences from other males of the subgenus Ammosphex, which are distributed in the Russian Far East and East Siberia, are given in the key below.
Diagnosis of female. The female of this species is very similar to that of Arachnospila (Ammosphex) ausa (Tournier, 1890) by having shortened obtuse apical flagellomere and similar venation of fore wing, but is easily identified by having T2 basally ferruginous-red only (T1, T2 and basal portion of T3 ferruginous-red in A. (A.) ausa). The differences from other females of the subgenus Ammosphex, which are distributed in the Russian Far East and East Siberia, are given in the key below.
Description. MALE. Body length 6.4–8.4 mm (holotype 6.6 mm). Fore wing length 4.8–5.6 mm (holotype 5.0 mm). Head width 1.09–1.18 × its height. Ocelli small, POD/OOD 0.97–1.27. Ratio of genal median width to eye median width (lateral view) 0.46–0.59. Clypeus weakly convex, anterior border emarginate with narrow smooth rim. Labrum flat, anterior border straight. Flagellomere 1 length 1.92–2.30 × its width. Relation of scape, pedicel and two first flagellomeres 27–32: 11–15: 23–29: 25–29. Mesosoma length dorsally 1.43–1.53 × its maximum width. Pronotum median length 0.32–0.41 × its median width, posterior pronotal border angulate. Metanotum median length 1.4–1.7 × metapostnotum median length. Metapostnotum with transverse striae, its posterior border with smooth shiny triangle medially. Median length of propodeum 0.83–0.88 × maximum width of propodeum. Fore wing slightly infuscated with darker apical part, venation as in Fig. 110, 3r-m cell triangulate or petiolate. Hypopygium constricted subbasally, emarginated apically, apical half with short erect dense setae (Figs 26, 27). Genitalia as in Fig. 50.
Gena and propleura with erect scattered silver setae. Inner eye orbit near lateral ocellus with 2–3 long erect setae. Mandible with 1–2 strong and a few softer and shorter erect setae. Other body parts lacking setae. Lower part of face, sides of pronotum, pleurae, propodeum, hind coxae (posteriorly) with dense silver pubescence. Pronotum dorsally, mesoscutum, scutellum, and metanotum, legs and metasoma with iridescent brownish sparse pubescence. Body regularly micropunctate. Body and legs black, mandible brownish apically, T1 (laterally) and T2 (basally) ferruginous-red.
Description. FEMALE. Body length 8.4–8.5 mm. Fore wing length 5.7–6.6 mm. Head width 1.12–1.18 × its height. Ocelli small, POD/OOD 1.26–1.13. Ratio of genal median width to eye median width (lateral view) 0.5. Ratio of median eye width to half width of frons (frontal view) 0.7–0.8. Clypeus weakly longitudinally convex, anterior border weakly emarginate with smooth rim. Labrum flat, anterior border weakly emarginate. Flagellomere 1 length 4.17–4.28 × its width. Relation of scape, pedicel and first two flagellomeres 39–40: 14–15: 50–60: 43– 49. Apical flagellomere shortened and obtuse. Mesosoma length dorsally 1.2–1.4 × its width. Pronotum median length 0.3 × its median width, posterior pronotal border obtuse-angulate. Metanotum median length 1.5–1.7 × metapostnotum median length. Metapostnotum with transverse striae, its posterior border with median smooth shiny triangle. Median length of propodeum 0.8 × maximum width of propodeum. Spines of tarsal comb rather long, tarsomere 1 with three spines, tarsomere 2 with two spines, tarsomere 3 with one spine, tarsomeres 4 and 5 without spines; apical spine of tarsomere 1 0.8–0.9 × length of protarsomere 2; apical spine of tarsomeres 2 and 3 equal to tarsomeres 3 and 4 respectively in length. Wings weakly evenly infuscated, fore wing venation as in Fig. 111, 3r-m cell triangulate or petiolate.
Propleura and gena with erect silver scattered setae. Inner eye orbit near the ocelli with 1–2 long erect dark setae. Mandible with 4–7 long strong curved setae. Coxae with rare short erect setae. S5 and S6 with scattered long erect setae. Coxae posteriorly and propodeum baso-laterally with silver pubescence. Others body part with brownish micropubescence. Body regularly micropunctate. Body and legs black. Mandible pale brown medially and brown apically; basal half of T2 and S2 ferruginous-red.
Type material. Holotype, 3, RUSSIA, Lazovsky Reserve, Prosyolochnaya Bay, 13.VII.2008 (Loktionov) [IBSS]. Paratypes. RUSSIA, Primorskiy Terr.: 1 3, 7 km E Khasan, 6.VIII.1974 (Lelej); 1 3, the same place, 27.VIII.1986 (Lelej); 1 3, Lazovsky Reserve, Prosyolochnaya Bay, 16.VII.2006 (Nemkov); 1 Ƥ, Sukhanovka, pass, 18.VIII.1987 (Lelej); 1 3, the same place, 20.VII.1992 (Belyaev); 1 Ƥ, 10 km W Preobrazhenie, 17.VIII.1986 (Lelej); 1 3, Barabash-Levada, 30.VI.1978 (Lelej) [IBSS, ZIN].
Distribution. Russia (Primorskiy Terr.).
Etymology. The name is derived from Latin oriens, orientis (East) referring to the area where the species has been found and ausa, the name of a related European species.
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 15-17, DOI: 10.5281/zenodo.202611