Arachnospila (Ammosphex) zonsteini Loktionov and Lelej

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, Zootaxa 3137, pp. 1-30 : 26-27

Arachnospila (Ammosphex) zonsteini Loktionov and Lelej , sp. nov.

( Figs 28, 29 , 45 , 75, 76 , 124, 125)

Diagnosis of male. The male of the new species resembles males of Arachnospila (Ammosphex) mongolopinata Wolf, 1981 and A. (A.) orientausa sp. nov. by having hypopygium distinctly narrowed subbasally, but clearly differs from both of them by having hypopygium with tuft of setae baso-laterally ( Fig. 28 vs. 24, 26) and by very broad volsella ( Fig. 45 vs. 49, 50).

Diagnosis of female. The female of this species differs from other females of the subgenus Ammosphex by ratio of eye width to half frontal width 0.8 and less (0.9 and more in Arachnospila (Ammosphex) anceps ( Wesmael, 1851) and A. (A.) wolfi Lelej, 1995 ), by first flagellomere length 3.2–3.9 × its width (4.1 × and more in other females), by apical flagellomere length almost 3 × its width (2 × in A. (A.) orientausa sp. nov.), by protarsomere 1 with three short spines of tarsal comb (four long spines in A. (A.) kaszabi Wolf and Móczár, 1972 ), and by mesopleuron and propodeum with silver micropubescence (brownish micropubescence in some other females).

Description. MALE. Body length 6.3–7.4 mm (holotype 7.4 mm). Fore wing length 5.0– 5.3 mm (holotype 5.3 mm). Head width 1.1 × its height. Ocelli small, POD/OOD 1.0. Ratio of genal median width to eye median width (lateral view) 0.4–0.5. Clypeus weakly longitudinally convex, anterior border straight or weakly emarginate, with narrow smooth rim. Flagellomere 1 length 2.0–2.2 × its width. Relation of scape, pedicel and two first flagellomeres 25: 13–14: 23–24: 27–29. Mesosoma length dorsally 1.5–1.6 × its maximum width. Pronotum median length 0.4–0.5 × its median width, posterior pronotal border angulate. Metanotum median length 1.4–1.5 × metapostnotum median length. Metapostnotum matt with 2–3 distinct transverse striae near anterior border, its posterior border with median smooth shiny triangle. Median length of propodeum 0.7–0.8 × maximum width of propodeum. Wings slightly infuscated with darker apical part, venation of fore wing as in Fig. 124. Hypopygium as in Figs 28, 29 . Genitalia as in Fig. 45 .

Frons with scattered long brown erect setae. Gena and propleura with denser long pale brown erect setae. Sides of propodeum with a few different length erect gray setae or lacking setae. Mandible with two long, strong and a few softer and shorter erect setae. Scutellum with four brownish erect setae. Lower part of face, gena, pronotum, pleurae, propodeum, fore coxae, mid and hind coxae posteriorly with dense silver pubescence. Mesoscutum, scutellum, and metanotum with sparse silver pubescence. Mid and hind coxae anteriorly with iridescent mainly brownish pubescence. Legs and metanotum with iridescent gray-brownish micropubescence. Body regularly micropunctate. Body and legs black. Mandible brownish apically; T1 (except basal portion), T2 and T3 basally ferruginous-red.

Description. FEMALE. Body length 6.7 mm. Fore wing length 5.6 mm. Head width 1.1 × its height. Ocelli small, POD/OOD 0.9. Ratio of genal median width to eye median width (lateral view) 0.65. Ratio of eye median width to half width of frons (frontal view) 0.65. Clypeus longitudinally convex, anterior border weakly emarginate with smooth rim, which is not narrowed medially ( Fig. 75 ). Labrum flat, anterior border weakly emarginate. Flagellomere 1 length 3.8 × its width. Relation of scape, pedicel and first two flagellomeres 30: 12: 42: 35. Apical flagellomere acuminate. Mesosoma length dorsally 1.4 × its width. Pronotum median length 0.4 × its median width, posterior pronotal border obtuse-angulate. Metanotum median length 1.8 × metapostnotum median length. Metapostnotum shiny, with distinct transverse striae anteriorly, other part strigulate, posterior border with median small smooth triangle ( Fig. 76 ). Spines of tarsal comb short, tarsomere 1 with three spines, tarsomeres 2, 3 with two spines, tarsomere 4 with one spine and tarsomeres 5 without spines; apical spine of tarsomere 1 0.5 × length of protarsomere 2; apical spine of tarsomeres 2 and 3 0.6 × length of tarsomeres 3 and 4 respectively. Wings weakly infuscated with darker apical portion, venation of fore wing as in Fig. 125.

Frons, vertex, clypeus, fore coxae, sides of propodeum, S5 and S6 with long brown scattered erect setae. Gena, propleura with denser long pale brown erect setae. Pronotum, mesonotum, mid and hind coxae, S2–S4 with rare mixed length setae. Scutellum with three long erect setae. Lower part of face with silver pubescence. Propodeum, mesopleura and coxae posteriorly with iridescent mainly gray micropubescence. Other parts of body with brownish micropubescence. Body regularly micropunctate. Body and legs black. Mandible pale brown medially and dark brown apically; T1 (except basal portion), T2 and T3 (baso-laterally) ferruginous-red.

Type material. Holotype, 3, RUSSIA, Buryatia, Kyakhta, 30.V.2008 (Loktionov) [ IBSS]. Paratypes, 1 Ƥ 1 3 with the same label; 1 3, Buryatia, Naushki, 5.VIII.1984 (Lelej) [ IBSS, ZIN].

Distribution. Russia (Buryatia).

Biology. Inhabits steppe areas.

Etymology. Named after Sergei L. Zonstein (Tel-Aviv University, Israel), for his contributions to the taxonomy of Pompilidae .

Figures

FIGURES 20 – 37. Sterna 7 and 8 (hypopygium) of male. 20, 21. Arachnospila (Ammosphex) kaszabi, 3, S 7 – S 8 (20, ventral view; 21, lateral view). 22, 23. A. (A.) rasnitsyni sp. nov., 3, holotype, S 8 (22, ventral view; 23, lateral view). 24, 25. A. (A.) mongolopinata, 3, S 7 – S 8 (24, ventral view; 25, lateral view). 26, 27. A. (A.) orientausa sp. nov., 3, holotype, S 7 – S 8 (26, ventral view; 27, lateral view). 28, 29. A. (A.) zonsteini sp. nov., 3, holotype, S 8 (28, ventral view; 29, lateral view). 30, 31. A. (A.) dschingis, 3, S 7 – S 8 (30, ventral view; 31, lateral view). 32, 33. A. (A.) belokobylskii sp. nov., 3, holotype, S 7 – S 8 (32, ventral view; 33, lateral view). 34, 35. A. (A.) wolfi, 3, holotype, S 7 – S 8 (34, ventral view; 35, lateral view). 36, 37. A. (A.) yasumatsui, 3, S 7 – S 8 (36, ventral view; 37, lateral view). Scale bar 0.5 mm.

FIGURES 44 – 49. Male genitalia, ventral view. 44. Arachnospila (Ammosphex) kurzenkoi, holotype. 45. A. (A.) zonsteini sp. nov., holotype. 46. A. (A.) kaszabi. 47. A. (A.) trivialis. 48. A. (A.) anceps. 49. A. (A.) mongolopinata. Scale bar 0.5 mm.

FIGURES 67 – 76. 67 – 75. Clypeus of female, frontal view; 76. Metapostnotum, dorsal view. 67. Arachnospila (Ammosphex) orientalis sp. nov., paratype. 68. A. (A.) rasnitsyni sp. nov., paratype. 69. A. (A.) mongolica. 70. A. (A.) subvittata. 71. A. (A.) tobiasi sp. nov., paratype. 72. A. (A.) trivialis. 73. A. (A.) wolfi. 74. A. (A.) yasumatsui. 75, 76. A. (A.) zonsteini sp. nov., paratype.