Zele extensus Fang, van Achterberg & Chen sp. nov.

Fig. 14

Type material.

Holotype. China – Sichuan Prov. • ♀; Panzhihua, Yixian, Puwei, Pengjiayakou; 5 Jun. 2024; Xiao-qing Zhang, Ying Wang, Qing-zhen Meng leg.; tree canopy; (ZJUH) No. 202402467. GenBank accession no. PV 356305.

Diagnosis.

Vein 2 - SC + R of hind wing distinctly longer than vein 1 - M (Fig. 14 E); metanotum with three distinct parallel carinae and no knob medio-posteriorly (Fig. 14 C); tip of ovipositor sheath dark brown (Fig. 14 F); ovipositor sheath ~ 0.26 × as long as fore wing; hind tarsus mainly whitish yellow; dorsope of first tergite small, area between dorsope much wider than dorsope (Fig. 14 L); [basal 1 / 3 of first tergite comparatively wide in lateral view (Fig. 14 K); eyes distinctly protruding in dorsal view; fore wing and first subdiscal cell comparatively narrow; pterostigma infuscated (Fig. 14 D)].

Comparative diagnosis.

Similar to Z. rugulosus but differs mainly by longer vein 2 - SC + R of hind wing (compared with vein 1 - M of hind wing) (shorter in Z. rugulosus), narrow subdiscal cell (wide in Z. rugulosus) and dark brown tip of ovipositor sheath (pale yellowish in Z. rugulosus).

Description.

Holotype, ♀, length of fore wing 6.7 mm, of body 7.1 mm, and antenna 1.3 × as long as fore wing.

Head. Antennal segments 44, third segment nearly as long as fourth segment and third, fourth and penultimate segments 3.8 ×, 3.6 ×, and 1.6 × longer than wide, respectively; length of maxillary palp 1.2 × longer than height of head; frons partly rugose and behind antennal sockets impressed; POL: diameter of posterior ocellus: OOL = 15: 12: 8; vertex convex, punctulate, matt and densely setose (Fig. 14 I); clypeus slightly convex in lateral view, widely punctate dorsally, smooth ventrally (Fig. 14 J); face widely rugulose, punctulate near antennal sockets and eyes, narrowed ventrally, minimum width of face 1.1 × height of face (Fig. 14 H); length of eye 2.2 × temple in dorsal view (Fig. 14 I); length of malar space 0.2 × basal width of mandible.

Mesosoma. Length of mesosoma 1.7 × its height; side of pronotum striate-rugose ventrally, reticulate-rugose medially, punctate postero-dorsally; epicnemial area largely reticulate-rugose; precoxal sulcus widely punctate-rugose ventrally; dorsal of mesopleuron largely smooth, finely punctate, anteriorly narrowly sculptured (Fig. 14 B); mesosternum coarsely punctate; metapleuron broadly striate anteriorly, rugose posteriorly smooth; mesoscutal lobes widely punctulate and comparatively shiny; notauli anteriorly distinctly and narrowly crenulate, mesoscutum medio-posteriorly narrowly crenulate-rugose and with a medium-sized carina; scutellar sulcus deep and rather wide with one long obvious median carina; scutellum rather convex and finely punctulate; metanotum with three similar subparallel carinae medially; propodeum densely reticulate-rugose, subbasal carina of propodeum absent, comparatively smooth anteriorly; propodeum without long straight median carina; propodeum gradually lowered posteriorly in lateral view (Fig. 14 B, C).

Wings. Fore wing (Fig. 14 D): r: 3 - SR: SR 1 = 11: 27: 131; 2 - SR: 3 - SR: r-m = 27: 27: 16; cu-a vertical, interstitial. Hind wing (Fig. 14 E): r absent; M + CU: 1 - M = 77: 12; 1 r-m 3.0 × 1 - M.

Legs. Hind coxa largely smooth dorsally; length of fore femur 7.0 × its width (Fig. 14 M); length of fore tibial spur 0.3 × fore basitarsus (Fig. 14 G); lengths of hind femur and basitarsus 7.2 × and 9.0 × their widths, respectively (Fig. 14 N).

Metasoma. First tergite 2.7 × longer than its apical width, its surface largely irregularly rugulose; dorsope narrow elliptical, elongate, and medium-sized, area in front of dorsope depressed (Fig. 14 L), laterope comparatively small but elongate (Fig. 14 K); second tergite mainly bare, smooth and shiny; ovipositor comparatively robust basally; length of ovipositor sheath 0.26 × as long as fore wing, sheath with moderately erect and short setae (Fig. 14 F).

Colour. Mesosoma, hind coxa, hind tibia (except apical fourth brown), first metasomal tergite largely black,; antenna, head, mandible, veins C + SC + R, 1 - M, and cu-a of fore wing, ovipositor sheath (except pale brown apex) mainly dark brown; palpi, fore and middle legs, metasoma (except first metasomal tergite) yellowish brown; hind femur reddish brown; hind tarsus largely whitish yellow, but its telotarsi dorsally and base of basitarsus yellowish brown; pterostigma brown.

Distribution.

China (Sichuan).

Biology.

Unknown.

Etymology.

Named after the comparatively stretched dorsope of the first metasomal tergite; extensus is Latin for stretched.