Telostholus sulawesi Loktionov & Lelej, 2019

Loktionov, Valery M. & Lelej, Arkady S., 2019, The spider wasp genus Telostholus Haupt, 1929 (Hymenoptera, Pompilidae) in Indonesia, with the description of three new species, Zootaxa 4648 (2), pp. 260-272 : 268-270

Telostholus sulawesi Loktionov & Lelej , sp. nov.

( Figs 32–40 )

Material examined. Holotype, ♀ “ Celebes, Bonthain Wawa Karaeng , 1100 m, Sept.-Okt. 1931 ” [ Indonesia, Su- lawesi Is., South Sulawesi Prov., Bantaeng Regency] (G. Heinrich) [ MNHU].

Diagnosis. Female. The female of this new species can be easily separated from those of other congeners by the following combination of characters: (1) fore wing mostly brownish, with translucent areas on medial, first submarginal, first and second cubital cells, and whitish apical portion ( Fig. 39 ); (2) dorsum of propodeum with short tubercle postero-laterally ( Figs 37, 38 ); (3) POD: OOD = 1.7. Male. Unknown.

Description. FEMALE. Length: body 9.4 mm; forewing 8.2 mm. Head 1.08 times as wide as height; MID 0.58 times as long as head width in frontal view, half of MID 1.45 times as long as eye width ( Fig. 33 ). Ocelli large, slightly raised; ocellar triangle right-angled; POD: OOD = 1.7 ( Fig. 35 ). Head in frontal view with vertex producing beyond eye top and roundly convex between eyes top ( Fig. 33 ). Posterior margin of vertex in dorsal view broadly concave ( Fig. 35 ). Head in lateral view with frons slightly convex ( Fig. 34 ). Temple in dorsal view weakly developed ( Fig. 35 ). Gena in profile strongly narrowing towards vertex ( Fig. 34 ). Malar space very short ( Fig. 34 ). Clypeus slightly convex, 0.87 times as wide as LID, and 2.15 times as wide as height; anterior margin straight; anterolateral corner distinct and strongly rounded ( Fig. 33 ). Mandible stout with small subapical tooth. Labrum with broadly rounded anterior margin. Maxillary palps 3–6 about same length. Flagellum filiform; scape normal shaped; ratio of scape, pedicel and flagellomeres length (on ventral side) 27: 8: 23: 24: 20: 20: 18: 16: 15: 14: 13: 17; scape 0.79 times as long as UID; F1 3.07 times as long as maximum width and 0.68 times as long as UID; apical flagellomere pointed apically.

Mesosoma. Pronotum in dorsal view 0.43 times as long as its maximum width; anterior face inclined, distinctly differentiated from dorsum by two slightly produced transverse subtriangular processes medially ( Fig. 34 ); posterior border rounded and somewhat subangulate medially ( Fig. 35 ). Dorsum of mesoscutum convex in anterior half. Dorsum of mesoscutellum and metanotum convex. Posterior margin of mesoscutellum narrowly arcuate ( Fig. 37 ). Metapostnotum deep, triangularly emarginate posteriorly, 1.15 times as long as metanotum medially ( Fig. 37 ). Propodeum in dorsal view 0.87 times as long as wide ( Fig. 37 ); dorsum in lateral view slightly convex, with short tubercle postero-laterally ( Fig. 38 ); dorsum evenly merging with posterior face not forming distinct edge; posterior face inclined and flattened.

Legs. Proleg without spines, except following: protibia outer face with two spines, protibia with few differentlength spines apically, protarsomere 1 with two longitudinal rows of very short spines ventrally and two spines ventro-laterally on outer face, protarsomeres 2 and 3 with median longitudinal row of very short spines ventrally, protarsomere 4 with very long spines apically, longest one 0.44 times as long as protarsomere 5, protarsomere 5 without spines ventrally. Protarsi somewhat shortened, protarsomere 1 1.1 times as long as protarsomere 2–4 combined. Mesofemur with one short spine dorso-apically. Metafemur with two spines dorso-apically. Meso- and metatibia with scattered long spines. Metatibia longer spur 0.62 times as long as metatarsomere 1. Meso- and metatarsomere 1 with shorter than on tibia spines; mesotarsomere 1 ventrally with median row of short spines in apical half; meso- and metatarsomeres 2–4 ventrally with median longitudinal row of short spines; meso- and metatarsomere 2 except median row of spines with two spines on both sides of row. Tarsomere 5 without spines ventrally. Tarsal claws symmetrical and bifid, inner tooth broad and obliquely truncated.

Wings. Fore wing ( Fig. 39 ) mostly brownish, with translucent areas on medial, first submarginal, first and second cubital cells, and with whitish apical portion; pterostigma brown, 4.38 times as long as its own height (on inner distance) and 1.75 times as long as Rs 2; second submarginal cell 2.54 times as long as maximum height, narrowed on vein Rs by 0.61 times its own length on vein M, receiving crossvein 1m-cu at basal 0.26 and receiving crossvein 2m-cu at basal 0.89; crossvein 3rs-m arched towards wing apex; crossvein cu-a slightly arched, originating just beyond separation of vein M+CuA; vein M ending far from wing margin; vein Cu 1 almost touching wing margin. Hind wing ( Fig. 40 ) translucent, with brownish area along posterior margin of wing from base to top; crossvein cu-a evenly arched and anterofurcal.

Metasoma. In dorsal view slightly wider than mesosoma. Posterior margin of T1–T5 and S1–S5 slightly emarginate medially. T5 and S5 not compressed laterally.

Sculpture. Body matt, except mandible polished, frons and metasoma somewhat polished. Body with inconspicuous microsculpture. Frons very densely and minutely punctate, with basomedian short line. Metapostnotum with fine transverse striae anteriorly. Dorsum of propodeum densely and minutely punctate, punctures somewhat larger and coarser than on frons; posterior face with more scattered punctures than on dorsum. Antenna and legs matt, except scape somewhat polished.

Colour and pubescence. Body black ( Fig. 32 ) except apical half of mandible brown, maxillary palps darkbrown, claws brown, longitudinal brush on metatibia golden-brown. Body without setae except following: upper frons with 20 pale thin and different-length setae, labrum with few thin and 2 thick pale setae, mandible with few thin pale setae, coxae with scattered very short gray setae, S1–S5 with scattered pale setae, S6 with scattered short and several very long setae, T6 apically with few long setae. Head, mesosoma laterally with sparse gray pubescence. Mesosoma dorsally with somewhat brownish iridescence pubescence. Legs with grayish micropubescence. Metasomal terga with brownish iridescent micropubescence, with gray micropubescence on T1–T3 basally. Metasomal sterna with gray iridescence micropubescence.

MALE. Unknown.

Distribution. Indonesia: Sulawesi.

Etymology. The new species is named after Sulawesi, the island where the holotype was collected. Treat as a noun in apposition.

Figures

FIGURES 32–40. Telostholus sulawesi sp. nov., ♀, holotype. 32. Habitus, dorso-lateral view. 33. Head, frontal view. 34. Pro- notum and head, lateral view. 35. Mesoscutum part., pronotum and head, dorsal view. 36. Head and mesosoma, lateral view. 37. Mesoscutellum, metanotum, metapostnotum, propodeum and T1 part., dorsal view. 38. Tubercle on propodeum, dorso-lateral view. 39. Fore wing. 40. Hind wing. Scale bar: 1.0 mm for 32; 0.5 mm for 33–37; 0.2 mm for 38.