Cosmocomoidea rugosa Aishan, Triapitsyn & Xu, 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 : 532-533

Cosmocomoidea rugosa Aishan, Triapitsyn & Xu sp. n.

( Figs 23–27 , 33 )

Type material. Holotype ♀ [ FAFU] (on slide, Fig. 33 ): CHINA, GUANGDONG, Guangzhou , 23.iv.1992, D. G Liu (Liu Deguang) . Paratypes (on slides): CHINA: GUANGDONG, Guangzhou, D. G. Liu : 23.iv.1992 [2 ♀, FAFU] ; 10.vi.1992, D. G. Liu [1 ♀, FAFU]. YUNNAN, Lijiang , 1.viii.1984, C. Li [1 ♀, FAFU] .

Description. FEMALE (holotype and paratypes). Body length 1375–1750 µm. Body color brown to dark brown, antenna brown except clava dark brown, legs yellow except coxae dark brown.

Antenna ( Figs. 23, 27 ) with radicle about 0.2× total length of scape, the rest of scape 3.1× (2.9–3.7×) as long as wide; F1 shorter than pedicel and the shortest funicle segment, F2–F5 equal in length, F6–F8 shorter than preceding funicle segments; mps on F2–F8 (2 on each); clava with 8 mps, 3.2× (3.2–3.9×) as long as wide.

Mesosoma a little shorter than metasoma. Propodeum ( Fig. 24 ) rugose lateral to submedian carinae, the carinae slightly curving and narrowing, and extending to anterior margin. Fore wing ( Fig. 25 ) 2.5× (2.5–2.8×) as long as wide, longest marginal seta 0.12× (0.11–0.17×) maximum wing width; disc mostly bare behind venation except for a few setae behind stigmal vein. Hind wing about 15.0× as long as wide.

Ovipositor ( Fig. 26 ) occupying 0.8× (0.8–1.0×) length of gaster, not or barely exserted beyond its apex, 1.4× (1.3–1.4×) as long as mesotibia.

Measurements (µm) of holotype. Mesosoma 664; petiole: 45; gaster 703; ovipositor 594. Antenna: radicle 53; rest of scape 233; pedicel 83; F1 53; F2 75; F3 80; F4 75; F5 75; F6 65; F7 60; F8 50; clava 587. Fore wing 1425:575; longest marginal seta 69. Hind wing 1069:69; longest marginal seta 89.

MALE. Unknown.

Recognition. Cosmocomoidea rugosa is most similar to C. kodaiana to which it keys in Zeya & Hayat (1995). Females differ from those of the latter by F2 ( Fig. 27 ) bearing 2 mps whereas in C. kodaiana F2 bears only 1 mps. The ovipositor of C. rugosa is also notably longer than mesotibia (at least about 1.3×) whereas in C. kodaiana the ovipositor is either about equal to (in the specimens from China) or a little shorter than the mesotibia ( Zeya & Hayat 1995). Females of C. rugosa differ from those of C. tenuis by their rugose propodeum, and mps are present in C. Tenuis only on F3 (1), F4 (1 or 2), and F5–F8 (2 on each), whereas in C. rugosa mps are present on F2–F8 (2 on each).

Distribution. Oriental: China (Guangdong, Yunnan).

Etymology. The species name refers to the rugose propodeum.

Hosts. Unknown.

Figures

FIGURES 23 – 27. Cosmocomoidea rugosa ♀ (holotype): 23, antenna; 24, propodeum; 25, fore wing; 26, ovipositor; 27, pedicel and F 1 – F 3 of antenna.

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