Copidosoma longchuane Li & Wang, 2018

Wang, Hai-Yan & Li, Cheng-De, 2018, Key to Chinese species of Copidosoma (Hymenoptera: Encyrtidae), with new records and three new species, Zootaxa 4418 (4), pp. 353-369 : 362

Copidosoma longchuane Li & Wang , sp. nov.

Figs 19–24

Type material. Holotype ♀ [No. E 1304-01, on slide, NEFU], CHINA, Yunnan Province, Longchuan County, Longba Town, 26–29.IV.2013, Xiang-Xiang Jin , Guo-Hao Zu , Chao Zhang , YPT . Paratype. 1♀ [No. E 1304-02, on slide, NEFU], same data as holotype .

Diagnosis. Female. Body brown to blackish brown; wings hyaline except for a small brown spot around marginal vein of fore wing; frontovertex 0.43–0.47× head width, malar space 0.65–0.72× as long as eye height, mouth cavity as broad as frontovertex; mandible with three sharp and subequal teeth; pedicel longer than F1 and F2 combined; funicle 6-segmented; clava 3-segmented and strongly obliquely truncated at apex, truncated part about 0.70–0.79× length of clava; mesoscutum with polygonal-rounded reticulate sculpture, scutellum with longitudinally lineolate sculpture; marginal vein 0.74–0.82× as long as stigmal vein, postmarginal vein 0.50–0.54× as long as stigmal vein, linea calva open posteriorly; metasoma slightly longer than mesosoma; ovipositor very slightly exerted, 0.58–0.66× as long as metasoma and 0.55–0.73× as long as mesotibia, third valvula fused to second valvifer.

Description. Female. Holotype. Length, 1.31 mm. Head mostly blackish brown, mouth parts yellowish brown. Antenna dark brown. Mesosoma including tegula brown to dark brown, mesopleurum yellowish brown. Wings hyaline except a small brown spot around marginal vein of fore wing. Legs with all coxae dark brown, pro- and metatrochanters brown, basal mesotrochanter brown and distal mesotrochanter yellow; profemur brown except distal one third yellow, protibia yellow with dorsal margin brown; mesofemur and mesotibia yellow; metafemur brown except extremities, yellowish, metatibia mostly brown except bout basal 1/5 yellow, all tarsi yellow to yellowish brown except fifth tarsomeres, darker. Metasoma yellowish brown.

Head ( Fig. 19 ), in frontal view, frontovertex at the point of anterior ocellus 0.43× head width. Ocelli forming an obtuse triangle. OOL subequal to OCL. OOL 0.5× as long as OD. Lower face and malar space with some longitudinally reticulate sculpture. Malar space 0.65× as long as eye height, mouth cavity as broad as frontovertex. Mandible with 3 sharp, subequal teeth; maxillary palp 2-segmented. Antennae ( Fig. 20 ) with scape nearly cylindrical, 6.82× as long as broad; pedicel 2.5× as long as broad, and longer than F1 and F2 combined; F1 0.32× as long as pedicel; clava 2.82× as long as broad and 0.81× as long as scape, slightly shorter than funicle and distinctly broader than preceding funicular segment; clava 3-segmented and strongly obliquely truncated at apex, truncated part about 0.79× length of clava. Relative measurements: HW, 45; FVW, 19.35; MS, 17; MCW,19.35; EH, 26; length (width): scape, 28 (4.1); pedicel, 11.2 (4.4); F1, 3.6 (3.58); F2, 4 (3.6); F3, 4 (4); F4, 4.6 (4.3); F5, 4.7 (4.7); F6, 4 (4.7); clava, 22.6 (8).

Mesosoma ( Fig. 21 ) with pronotum short; mesoscutum relatively flat with polygonal-rounded reticulate sculpture; scutellum slightly shorter than mesoscutum with longitudinally lineolate sculpture. Fore wing 2.0× as long as broad; submarginal vein with a hyaline break at distal end, marginal vein 0.82× as long as stigmal vein, postmarginal vein 0.54× as long as stigmal vein, the latter nearly straight and slightly swollen at apex; linea calva open posteriorly, filum spinosum present. Mesotibial spur ( Fig. 23 ) 0.36× as long as mesotibia, longer than the longer side of corresponding basitarsus and shorter than two corresponding basal tarsi combined. Relative length (width): fore wing, 146 (73); hind wing, 108 (30); MV, 5.75; PMV, 3.75; SV, 7; mesotibia, 62.3; mesotibial spur, 22.4.

Metasoma ( Fig. 24 ) slightly longer than mesosoma (1.04×). Ovipositor starting under distal margin of T4, 0.66× as long as metasoma and 0.73× as long as mesotibia, very slightly exerted at apex; third valvula fused to second valvifer. Cerci situated near the middle of metasoma. Relative length: metasoma, 69; ovipositor, 45.5.

Male. Unknown.

Host. Unknown.

Distribution. China (Yunnan).

Variation. No significant differences were found in available material.

Etymology. The specific name is derived from the field collection locality name.

Comments. This new species is similar to C. lucidum Kazmi & Hayat in having clava 3-segmented and strongly obliquely truncated at apex, scutellum with longitudinally lineolate sculpture, but can be distinguished from the latter by the following combination of characters: mandible with three subequal teeth (vs ventral tooth distinctly longer than other teeth), clava shorter than funicle (vs longer than funicle), mid leg with femur and tibia completely yellow (vs mostly dark brown or infuscate brown), metasoma yellowish brown (vs T1 greenish, rest of metasoma with a slight bronzy violet shine), third valvula fused to second valvifer (vs separated).

Figures

FIGURES 19–24. Copidosoma longchuane sp. nov., holotype ♀ (No. E1304-01): 19, head, frontal view; 20, antenna; 21, mesosoma; 22, part of fore wing venation; 23, legs; 24, metasoma.Scale bars=100µm.