Cosmocomoidea tenuis Xu, Lin & Hu, 2016

Aishan, Zhulidezi, Triapitsyn, Serguei V., Xu, Mei, Lin, Nai-Quan & Hu, Hong-Ying, 2016, Review of Cosmocomoidea (Hymenoptera: Mymaridae) from China, with descriptions of two new species, Zootaxa 4085 (4), pp. 525-535 : 533-534

Cosmocomoidea tenuis Xu, Lin & Hu sp. n.

( Figs 28–32 , 34 )

Type material. Holotype ♀ [ FAFU] (on slide, Fig. 34 ): CHINA, FUJIAN, Jiangle, 10.x.1991, N.-q. Lin . Paratypes (on slides): CHINA, FUJIAN: Chong’an, 6.viii.1985, N.-q. Lin [1♀, FAFU] . Jiangle, 10.x.1991, N.-q. Lin [1 ♀, FAFU] . Wuyishan, 6.viii.1985, N.-q. Lin [1 ♀, FAFU] .

Description. FEMALE (holotype and paratypes). Body length 1267–1500 µm. Body light brown to dark brown except ocelli and eyes light yellowish, legs yellowish brown.

Antenna ( Figs 28, 32 ) with radicle 0.17× (0.16–0.24×) total length of scape, rest of scape 4.0× (3.7–4.7×) as long as wide; all funicle segments longer than wide, F1 and pedicel subequal in length; F1 the shortest funicle segment, F2 slightly shorter than F3, F3–F7 subequal in length, F8 shorter than preceding funicle segment; mps on F3 (1), F4 (usually 1, occasionally 2 on one antenna only), F5–F8 (2 on each); clava with 8 mps, 5.2× (4.9–5.5×) as long as wide.

Mesosoma a little longer than metasoma. Propodeum ( Fig. 29 ) with submedian carinae complete or almost complete, slightly curving anteriorly. Fore wing ( Fig. 30 ) 2.8× (2.6–2.9) as long as wide, the longest marginal seta 0.14× (0.14–0.19×) maximum wing width; disc mostly bare behind venation except for a few setae behind stigmal vein. Hind wing about 16.0× as long as wide.

Ovipositor ( Fig. 31 ) occupying 0.9× (0.8–1.0×) length of gaster, not or barely exserted beyond its apex, 1.0× (0.8–1.2×) as long as mesotibia.

Measurements (µm) of the holotype. Mesosoma 594; petiole: 59; gaster 545; ovipositor 505. Antenna: radicle 50; rest of scape 203; pedicel 75; F1 63; F2 98; F3 113; F4 108; F5 108; F6 100; F7 103; F8 75; clava 310. Fore wing 1733:634; longest marginal seta 99. Hind wing 1257:69; longest marginal seta 149.

MALE. Unknown.

Recognition. Cosmocomoidea tenuis is most similar to C. kodaiana and C. rugosa (see the diagnosis of the latter). It can be distinguished from C. kodaiana by F2 of the female antenna lacking mps and by having only one mps on F3, whereas F2 bears one and F3 has two mps in C. kodaiana .

Distribution. Oriental: China (Fujian).

Etymology. The species name refers to the slender flagellum of the female antenna. Hosts. Unknown.

Figures

FIGURES 28 – 32. Cosmocomoidea tenuis ♀ (holotype): 28, antenna; 29, propodeum; 30, fore wing; 31, ovipositor; 32, pedicel and F 1 – F 4 of antenna.

FIGURES 33 – 34. 33, Cosmocomoidea rugosa: holotype slide; 34, C. tenuis: holotype slide.