Telostholus clypeatus Loktionov, 2020

Loktionov, Valery M., 2020, The spider wasp genus Telostholus Haupt, 1929 (Hymenoptera, Pompilidae) in Malaysia, with the description of four new species, Zootaxa 4768 (4), pp. 538-550 : 541-543

publication ID

https://doi.org/ 10.11646/zootaxa.4768.4.5

publication LSID

lsid:zoobank.org:pub:9E80C45A-BFDC-424C-9A64-86463FD350F6

DOI

https://doi.org/10.5281/zenodo.3794531

persistent identifier

https://treatment.plazi.org/id/03B687C5-FF88-FFC9-35E9-F9EDFDCAFE9E

treatment provided by

Plazi

scientific name

Telostholus clypeatus Loktionov
status

sp. nov.

Telostholus clypeatus Loktionov , sp. nov.

( Figs 12–22 View FIGURES 12–22 )

Material examined. Holotype, ♀, Malaysia, Pahang, 30 km NE Raub, Lata Lembik , 300 m, 3°56’ N 101°38’ E, IV–V.2002 (E. Jendek, O. Šauša) [OLL]. GoogleMaps

Diagnosis. Female. The female of this new species can be separated from those of other congeners by the following combination of characters: (1) eye broad ( Fig. 15 View FIGURES 12–22 ), half of MID 1.0 times eye width; (2) POD: OOD = 2.2; (3) clypeus with slightly depressed and translucent anterior rim ( Fig. 12 View FIGURES 12–22 ); (4) propodeum with tubercle posterolaterally ( Figs 18–20 View FIGURES 12–22 ); (5) fore wing ( Fig. 21 View FIGURES 12–22 ) with distinct light translucent area along apical margin, broad brown subapical band, and entirely brown cells 1A, M+Cu, and Cub; (6) F1 as long as scape. Male. Unknown.

Description. FEMALE. Length: body 9.7 mm; fore wing 7.2 mm. Head width 1.1 times its height; MID 0.51 times head width in frontal view, half of MID 1.0 times eye width ( Fig. 15 View FIGURES 12–22 ). Ocelli large, slightly raised; ocellar triangle right-angled; POD: OOD = 2.2 ( Fig. 17 View FIGURES 12–22 ). Head in frontal view with vertex moderately roundly convex between eye top ( Fig. 15 View FIGURES 12–22 ). Posterior margin of vertex in dorsal view broadly concave ( Fig. 17 View FIGURES 12–22 ). Head in lateral view with frons barely convex ( Fig. 16 View FIGURES 12–22 ). Frons near anterior ocellus flat. Temple in dorsal view scarcely developed ( Fig. 17 View FIGURES 12–22 ). Gena in profile strongly narrowing towards vertex, in upper portion almost liner ( Fig. 16 View FIGURES 12–22 ). Malar space very short ( Fig. 16 View FIGURES 12–22 ). Clypeus slightly convex, its width 0.9 times LID, and 2.2 times its height; anterior margin straight, with distinct, slightly depressed and translucent anterior rim; anterolateral corner rounded ( Fig. 12 View FIGURES 12–22 ). Mandible slen- der, with small subapical tooth. Labrum well exposed, its anterior margin straight medially ( Fig. 12 View FIGURES 12–22 ). Maxillary palps 3–6 about same length. Scape slightly concave ventrally. Flagellum filiform. Ratio of scape, pedicel and flagellomeres length (on ventral side) 45: 11: 45: 33: 31: 25: 23: 20: 20: 19: 16: 22. Scape length 0.96 times UID. F1 length 4.1 times its maximum width, 1.0 times scape length, and 0.96 times UID.Apical flagellomere blunt apically.

Mesosoma. Pronotum length in dorsal view 0.47 times its maximum width; anterior face short and inclined, differentiated from dorsum by two small but distinctly produced transverse subtriangular processes medially; pos- terior border broadly rounded, indistinctly subangulate medially ( Fig. 17 View FIGURES 12–22 ). Dorsum of mesoscutum slightly convex. Dorsum of mesoscutellum and metanotum convex. Metapostnotum short and deeply sunken, its median portion almost hidden under overhanging metanotum ( Figs 18, 20 View FIGURES 12–22 ). Propodeum in dorsal view distinctly parallel-sided, its length 0.8 times its width ( Fig. 18 View FIGURES 12–22 ); dorsum in lateral view slightly convex; postero-lateral corner produced into tubercle ( Figs 18–20 View FIGURES 12–22 ); dorsum evenly merging with posterior face not forming distinct edge; posterior face inclined and distinctly concave.

Legs. Proleg without spines, except following: protibia outer face with two spines, protibia with few differentlength stout spines apically, protarsomere 1 with three longitudinal rows of very short spines ventrally, protarsomeres 2 and 3 with median longitudinal row of very short spines ventrally, protarsomere 4 with long spines apically. Protarsomere 1 length 1.5 times protarsomere 2–4 length combined. Mesofemur with two short spine dorso-apically. Metafemur with 4–5 short spines dorso-apically. Meso- and metatibia with scattered long spines. Metatibia longer spur length 0.65 times metatarsomere 1 length. Meso- and metatarsomere 1 with spines which shorter and rare than on tibia; 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. All tarsomeres 5 without spines ventrally. Tarsal claws symmetrical and bifid, inner tooth broad and obliquely truncated.

Wings. Fore wing ( Fig. 21 View FIGURES 12–22 ) with distinct light translucent area along apical margin, broad brown band subapically, brown marking at base of M, pterostigma and cells (1A, M+Cu, Cub and C) almost entirely brown. Pterostigma length 4.5 times its height (on inner distance) and 1.4 times Rs 2. Second submarginal cell length 2.9 times its maximum height, narrowed on vein Rs by 0.51 times its own length on vein M, receiving crossvein 1m-cu at basal 0.33 and receiving crossvein 2m-cu at basal 0.9; crossvein 3rs-m arched towards wing apex; crossvein cu-a straight, originating at separation of vein M+CuA; vein M ending far from wing margin; vein Cu 1 not touching wing margin. Hind wing ( Fig. 22 View FIGURES 12–22 ) translucent, with slightly brownish apical portion; crossvein cu-a evenly arched and anterofurcal.

Metasoma in dorsal view conical shaped, as wide as mesosoma ( Fig. 14 View FIGURES 12–22 ). Posterior margin of T1–T5 and S1–S5 slightly emarginate medially.

Sculpture. Body matt, except mandible and labrum polished. Body with inconspicuous microsculpture. Frons micropunctate, with well impressed basomedian line. Metapostnotum matt, with fine transverse striae. Dorsum of propodeum densely and minutely punctate. Antenna and legs matt.

Colour and pubescence. Body black ( Figs 13, 14 View FIGURES 12–22 ) except mandible apically and clypeus apically brown, maxillary palps dark-brown, claws brown, metatibia longitudinal brush brown. Body without setae except following: upper frons with few pale thin setae, clypeus ventral face apically with dense short pale thin setae ( Fig. 12 View FIGURES 12–22 ), mandible and labrum with few pale setae, meso-, metacoxa and propodeum postero-laterally with scattered short grayish setae, S1–S5 with few pale short setae, S6 with many pale short setae, T6 with few long setae. Head and mesosoma with grayish micropubescence, most intensive on propodeum posteriorly. T1–T3 with distinct band of grayish pubescence.

MALE. Unknown.

Distribution. Malaysia (Pahang).

Etymology. The specific name refers to a peculiar character of the clypeus, i.e. its anterior rim depressed and translucent. Treated as an adjective in apposition.

Remarks. The female of this new species is similar to those of Telostholus orientalis , T. yasumatsui , T. malayensis sp. nov., and T. tomentosus sp. nov., but can be separated from them by having the following characteristics: eye broad ( Fig. 15 View FIGURES 12–22 ), half of MID 1.0 times eye width (eye narrower, 1.4–1,7 in T. orientalis and T. yasumatsui ); POD: OOD = 2.2 (1.4–1.7 in T. orientalis and T. yasumatsui ); cells 1A, M+Cu, and Cub completely brown (par- tially brown in T. yasumatsui ); dorsum of propodeum evenly merging with its posterior face not forming distinct edge (forming distinct edge in T. orientalis ); clypeus ( Fig. 12 View FIGURES 12–22 ) with slightly depressed and translucent anterior rim (without depressed and translucent anterior rim in T. malayensis sp. nov. and T. tomentosus sp. nov. ( Figs 23 View FIGURES 23–33 , 34 View FIGURES 34–44 )); dorsum of propodeum ( Fig. 20 View FIGURES 12–22 ) in lateral view slightly convex (strongly convex in T. malayensis sp. nov. and T. tomentosus sp. nov. ( Figs 31 View FIGURES 23–33 , 42 View FIGURES 34–44 )).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Pompilidae

Genus

Telostholus

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