Dinocarsiella brevicula, Zhang & Zhang, 2021

Zhang, Yaru & Zhang, Yanzhou, 2021, A new species of Dinocarsiella (Hymenoptera: Encyrtidae) from China, Zoological Systematics 46 (3), pp. 269-271 : 269-271

Dinocarsiella brevicula sp. nov. ( Figs 1–11 )

Diagnosis. Females of Dinocarsiella brevicula sp. nov. are generally similar to D. alpina ( Girault, 1917) , D. pulcherrima Erdös (1957) and D. quinqueguttata ( Xu, 2000) in habitus. D. brevicula sp. nov. can be separated from the other species by the combined followings: mesoscutum completely dark brown; antennal scape about 3.3× as long as broad; forewing strongly shortened with its apex not reaching base of gaster.

Description. Female. Body length (including ovipositor sheath) about 1.5 mm; head mainly yellow ( Fig. 1 ), except vertex adjacent to occipital margin marked brown, and interantennal prominence longitudinally marked brown in middle; outer side of torulus with dark brown band toward eye margin; occiput black; thorax and gaster almost entirely dark brown (except pronotum anteriorly with two yellowish white spots on each side, visible only in slide mounted specimens ( Fig. 2 )); antenna ( Fig. 4 ) entirely dark brown; tegula ( Fig. 5 ) brown; forewing ( Fig. 6 ) brown; hind wing ( Fig. 7 ) yellowish brown; legs ( Figs 8–10 ) mainly black, but first segment of mid tarsus yellow, first segment of fore and hind tarsus yellowish brown.

Head. Head ( Fig. 1 ) about 2.1 × as wide as frontovertex; ocelli forming an angle slightly more than 60°; distance between posterior ocellus about twice length of its own diameter; eyes not reach occiput margin; distance between torulus about same as its own diameter; distance between torulus and clypeus mouth margin about 1.2× as long as torulus diameter; antenna ( Fig. 4 ); scape distinctly expanded and flattened, about 3.3× as long as broad; pedicel about 2.0× as long as broad, about 0.6× as long as F1; funicular segments becoming shorter towards apex, F1 about 3.5× as long as broad, F6 about 2.8× as long as broad (and about 0.8× as long as F1); clava 3-segmented, about as long as length of F5 and F6 together, apex more or less rounded.

Thorax. Mesonotum slightly convex, with reticulated sculpture; mesoscuum with notaular lines complete; scutellum about as long as broad ( Fig. 3 ); forewing ( Fig. 6 ) strongly shortened and about 1.7× as long as broad, apex not reaching base of gaster; mid tibia spur about 0.8× as long as basitarsus ( Fig. 9 ).

Gaster. Gaster with ovipositor ( Fig. 11 ) not exserted or hardly so, a quite shorter than mid tibia (about 0.6×); hypopygium reaching apex of gaster; cerci located in apical half of gaster.

Variation. Very little in material available.

Male. Unknown.

Host. Unknown.

Distribution. China (Xizang).

Material examined. Holotype ♀, CHINA, Xizang, Dingri (28°39'N, 87°07'E), 02.VII.2018, coll. Qingtao Wu (Code 18XZ01-03) ( IZCAS). Paratypes. 3♀, same data as holotype ( IZCAS) .

Etymology. This species name refers to its strongly shortened forewing.

Figures

Figures 1–11. Dinocarsiella brevicula, sp. nov., female. 1. Head, frontal view; 2. Pronotum, frontal view; 3. Thorax (without pronotum), dorsal view; 4. Antenna; 5. Tegula; 6. Fore wing; 7. Hind wing; 8. Fore leg; 9. Mid leg; 10. Hind leg; 11. Ovipositor. Scale bars: 1–4, 8–11=200μm; 5–7=100μm.