Zaischnopsis campaniformis Tang & Peng sp. nov.

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Figs 5, 7E, H, 8B, I, 9G–H, 10E

Diagnosis

Head with scrobal depression bell-shaped, dorsal margin separated from anterior ocellus by distance equal to 1.53 × diameter of anterior ocellus (Figs 5C, 7E); OOL: POL: LOL: MPOD = 1.0: 7.0: 12.5: 10.0; antennal clava short, about 1.6× as long as wide (Fig. 5F). Tibiae black, except metatibia with basal half of dorsal margin milky-white (Fig. 5A). Fore wing disc infuscate with dark brown setae beyond level of parastigma except gradually lightened distally where more hyaline, and with one subtriangular hyaline spot behind marginal vein distally (Fig. 5E). Propodeum with anterior margin broadly U-shaped; plical region comparatively long (Figs 5I, 10E).

Etymology

From the Latin word ‘ campana ’ (‘bell’) in reference to the bell-shape of scrobal depression (Fig. 5C).

Material examined

Holotype CHINA – Guangxi Prov. • ♀; 广M省上思º+„大Ɯ自‼保ÑṂ [ Shiwandashan national park, Shangsi County]; 27 Aug. 2019; Li Tao leg.; DNA 640; FAFU.

Paratype CHINA – Guangxi Prov. • 1 ♀; same collection data as for holotype; DNA 641; FAFU .

Description

Female

LENGTH. About 5.1 mm.

HEAD (Fig. 5C–D, H). Dark with blue, green or yellow metallic luster, as follows: scrobal depression metallic greenish-blue (Fig. 5C), interantennal prominence, parascrobal region and lower face more golden-green (Fig. 5C), frons golden-yellow with slight purple metallic luster (Fig. 5D), vertex and temple green with golden-yellow metallic luster under some angles of light (Fig. 5D). Setae of lower face (Fig. 5C), interantennal prominence, lower part of parascrobal region (Fig. 5C), and gena (Figs 5H, 8I) white and lanceolate, setae of upper part of parascrobal region (Figs 5C, 8B), frons (Figs 5D, 7H) and vertex (Fig. 5D) brown and hair-like; maxillary and labial palpi black (Fig. 5C). Head in frontal view 1.18× as wide as high; in dorsal view width 1.51 × length, with interocular distance 0.16 × head width and less than width of eye; in lateral view 1.22× as high as long. Eye height about equal to width in lateral view; distance between eyes below 4 × distance between eyes above; malar space 0.51 × eye height; distance between toruli greater than distance between torulus and clypeal margin, and greater than distance between torulus and orbit. OOL: POL: LOL: MPOD = 1.0: 7.0: 12.5: 10.0. Face with parascrobal region narrow, interantennal region reticulate (Fig. 7E), scrobal depression (Fig. 7E) deep and bell-shaped, imbricate, dorsal margin delimited, separated from anterior ocellus by distance equal to 1.53× diameter of anterior ocellus; lower orbit above level of dorsal margin of torulus; lower face coriaceous; vertex and temple imbricate. Antennal (Figs 5F, 9G–H) scape and pedicel with yellowishgreen metallic luster, flagellum dark brown, 1 st and 2 nd segments of funicle with greenish-yellow metallic luster; scape normal, not expanded; relative length(width) of scape = 40(10), pedicel 19(4.5), 1 st to 8 th funiculars: 4.5(5), 20(6), 20(7.5), 20(11.5), 9.5(11), 9(12), 6.5(11.5), 5.5(12), clava 22.5(14).

MESOSOMA. Pronotum in dorsal view (Fig. 5B), dark with reddish-green to blue metallic luster, setae brown and hair-like; divided medially, pentagonal, imbricate. Mesoscutum (Fig. 5B) slightly convex anteriorly and concave posteriorly, and with lateral lobe carinate posteriorly; dark with slight greenishblue metallic luster, anterior convex region dark brown with brown hair-like setae, setae of posterior depressed region and lateral lobe white and lanceolate. Scutellar-axillar complex (Fig. 5B) dark purple with green metallic luster, setae brown and hair-like; disc flat with coarsely reticulate pattern arranged longitudinally in scutellum and transversely in axillae; scutellum 1.71 × as long as broad. Prepectus (Fig. 5G) dark brown to yellowish-brown; tegula dark brown with white hair-like setae; mesopectus dark purple, with long hair-like white setae; acropleuron reddish-purple with green metallic luster; mesopectus reticulate anterior to acropleural sulcus, acropleuron very finely longitudinally imbricate to coriaceous. Propodeum (Figs 5I, 10E) dark blue with slight greenish-blue metallic luster, anterior margin broadly U-shaped; plical region comparatively long, reticulate, with one patch of setae adjacent to spiracle anteriorly, callus coriaceous and bare, except with long white hair-like setae laterally. Fore wing (Fig. 5E) extended near apex of gaster, with costal cell dorsally bare except for dark brown setae in infuscate region in front of parastigma; basal cell hyaline with white setae except for one small brown region with brown setae at base, mediocubital fold setose with white setae; disc infuscate with dense brown setae except lightened distally, and with one hyaline spot with white setae behind marginal vein, the spot almost triangular in shape; stigmal vein distinctly bent distally so as to parallel anterior margin; SMV: MV: PMV: STV = 14.0: 12.0: 7.2: 3.7. Fore leg (Fig. 5A, G) with femur and tibia black, tarsus brown; middle leg with femur and tibia black, tarsus milky-white to light brown, spur yellowish-brown, shorter than basitarsus; hind leg with tibia black except basal half of dorsal margin milky-white, tarsus white to light brown, with basitarsus longer than the following two tarsomeres combined.

GASTER (Fig. 5A). Elongate-lanceolate, longer than mesosoma, black with metallic luster, except apex of syntergum and ovipositor sheaths brown; syntergum tapered to rounded apex; ovipositor sheath exserted slightly, for distance shorter than basitarsomere of hind leg.

Remarks

The fore wing of females of Z. campaniformis sp. nov. has a hyaline spot similar to Z. zhongi sp. nov. (Fig. 6E), but the spot is more distinctly triangular (Fig. 5E). Further, females are distinguished by the color of the anterior convex region of the mesoscutum, this being dark brown for Z. campaniformis (Fig. 5B) rather than green for Z. zhongi (Fig. 6B). Further, the pronotum of Z. campaniformis is distinctly bicolored (Fig. 5B), rather than yellowish-blue for Z. zhongi (Fig. 6B). Females of Z. campaniformis can also be distinguished by the color of the scrobal depression, having less luster and a more greenish pattern (Fig. 5C) rather than the dark blue color of Z. zhongi (Fig. 6C).

Distribution

China: Guangxi (Oriental).

Variation

The body length of the paratype is 4.9 mm; the color of the pronotum is more coppery than that of the holotype.