Copidosoma heinitane 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 : 356-359

Copidosoma heinitane Li & Wang , sp. nov.

Figs 1–12

Type material. Holotype. ♀ [No. E 1306-01, on slide, NEFU], CHINA, Yunnan Province, Tengchong County, Heinitan, 1–2.VI.2013, Xiang-Xiang Jin , Guo-Hao Zu , Chao Zhang , YPT . Paratypes. 1 ♀ [No. E1306-02, on slide, NEFU], 1♂ [No. E 1306-03, 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 0.48–0.51× head width; malar space about 0.69–0.75× as long as eye height; mouth cavity 0.69–0.73× as broad as frontovertex; mandible with 3 sharp teeth, inner tooth shortest and outer tooth longest; pedicel about as long as F1 and F2 combined; funicle 6-segmented, F1–F3 longer than broad, F4 quadrate, F5 slightly broader than long and F6 distinctly transverse; clava 1-segmented and strongly obliquely truncated at apex, truncated part about 0.76–0.78× length of clava; mesoscutum and scutellum with polygonalrounded reticulate sculpture; marginal vein of fore wing 0.75–0.84× as long as stigmal vein, postmarginal vein 0.5–0.6× as long as stigmal vein, base of fore wing with a small triangular speculum, linea calva open posteriorly; metasoma slightly longer than mesosoma. Ovipositor barely exerted, 0.46–0.48× as long as metasoma and 0.64–0.66× as long as mesotibia, third valvula fused to second valvifer; hypopygium not reaching the apex of metasoma. Male. Similar to female except for minor differences in color, antennae with all funicular segments nearly quadrate.

Description. Female. Holotype. Length, 1.67 mm. Head mostly blackish brown, frontovertex with metallic golden blue reflection and gena with metallic golden yellow reflection. Antenna with radicle brown, scape dark brown except distal third, paler, pedicel dark brown except apex, yellowish brown. Flagellomeres from F1 (brown) to clava (dark brown) gradually darker distad. Mesosoma, including tegula, brown to dark brown except posterior third of scutellum, blackish brown; mesoscutum with blue reflection, scutellum with golden reflection anteriorly and mesopleurum with golden blue reflection. Wings hyaline except for a small brown spot around marginal vein of fore wing, venation brown. Legs with all coxae dark brown and all trochanters brown; profemur dark brown except distal 1/4, yellow; protibia yellow except dorsal margin, brown; mesofemur and mesotibia, including mesotibial spur, entirely yellow; metafemur dark brown except extreme apex, yellowish; metatibia brown except basal part, yellow; all tarsi yellow except apical tarsomere of all legs, brown. Metasoma brown with metallic yellowish golden reflection, ovipositor stylet dark yellow.

Head ( Fig. 1 ), in frontal view, frontovertex at the point of anterior ocellus 0.51× head width. Ocelli forming an obtuse triangle, posterior ocellus closer to eye margin than to occipital margin. OOL subequal to OD, OCL about 2× OD. Occipital margin round. Lower face and malar space with longitudinally lineolate-reticulate sculpture. Malar space about 0.69× as long as eye height, mouth cavity 0.73× as broad as frontovertex. Mandible with three sharp teeth, inner tooth shortest and outer tooth longest, maxillary palp 3-segmented. Antennae ( Fig. 2 ) with scape long and slender, narrower on distal 2/5, and 6.4× as long as broad; pedicel 2.26× as long as broad, about as long as F1 and F2 combined. Funicle 6-segmented and gradually widening distad, F1 0.4× as long as pedicel, F1-F3 longer than broad, F4 quadrate, F5 a little broader than long and F6 distinctly transverse; clava 2.62× as long as broad and 0.92× as long as scape, about as long as five preceding funicular segments combined and distinctly broader than preceding funicular segment. Clava 1-segmented and strongly obliquely truncated at apex, truncated part about 0.78× length of clava. Relative measurements: HW, 48; FVW, 24.5; MS, 17.94; MCW, 17.89; EH, 26; length (width): scape, 23.5 (3.67); pedicel, 12 (5.3); F1, 4.8 (2.67); F2, 3.7 (3.2); F3, 3.7 (3.47); F4, 4.3 (4.3); F5, 4 (4.3); F6, 3.74 (4.8); clava, 21.62 (8.25).

Mesosoma ( Fig. 3 ) with pronotum short; mesoscutum relatively flat with polygonal-rounded reticulate sculpture, 0.72× as long as broad, axilla with similar sculpture, but much smaller and shallower, their inner corners slightly separated from each other; scutellum with sculpture similar to that of mesoscutum, 1.2× as long as broad, and distinctly shorter than mesoscutum. Propodeum relatively flat, 0.39× as long as scutellum. Fore wing ( Fig. 4 ) 2.35× as long as broad. Submarginal vein with an indistinct hyaline break at distal end; marginal vein 0.84× as long as stigmal vein; postmarginal vein 0.6× as long as stigmal vein, the latter straight and slightly swollen at apex; base of fore wing with a small triangular speculum, linea calva open posteriorly, filum spinosum present; marginal fringe short. Mesotibial spur ( Fig. 5 ) 0.28× as long as mesotibia, slightly shorter than the longer side of corresponding basitarsus. Relative length (width): fore wing, 149 (63.4); MV, 6.7; PMV, 4.8; SV, 8; hind wing, 102.5 (32); mesotibia, 61; mesotibial spur, 17.

Metasoma ( Fig. 6 ) slightly longer than mesosoma (1.07×). Ovipositor starting under base of T5 and barely exerted at apex of metasoma, 0.48× as long as metasoma and 0.66× as long as mesotibia, third valvula fused to second valvifer. Cerci situated mid-length, a slightly closer to apex than to the base of metasoma. Hypopygium not reaching the apex of metasoma. Relative lengths: metasoma, 84; ovipositor, 40.

Male ( Figs 7–12 ). Length, 1.1–1.5 mm. Similar to the female except for antennal structure and minor differences in coloration. Mandible yellow; mid leg mostly brown. Antennae with all funicular segments nearly quadrate, clava 1-segmented, a little shorter than preceding 4 funicular segments combined, and about as broad as preceding funicular segment, strongly obliquely truncated at apex. Genitalia ( Fig. 12 ) 0.49× as long as mesotibia. Relative length (width): scape, 18 (3.2); pedicel, 8 (3.4); F1, 3.4 (2.4); clava, 13.5 (4.2); mesotibia, 46.9; genitalia, 23 (6.6).

Host. Unknown.

Distribution. China (Yunnan).

Variation. The female paratype differ from holotype for the brown mesofemur and scape 6.75× as long as broad. No other significant differences were found in available material.

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

Comments. This new species is most similar to C. sosares (Walker) and C. thebe (Walker) due to the antenna with clava 1-segmented and apex strongly obliquely truncated, mesoscutum and scutellum with polygonal-rounded reticulate sculpture, postmarginal vein about half length of stigmal vein, F1 distinctly longer than broad, and similar body coloration, but can be distinguished from these two species by the following combination of characters: from C. sosares , truncated part of clava about 0.78× length of clava (vs slightly more than 2/5); clava about as long as five preceding funicular segments combined (vs about 3.5 preceding funicular segments combined); third valvula fused to second valvifer (vs separated); all funicular segments nearly quadrate in male (vs distinctly longer than broad), and the shape of male genitalia (cf. fig. 45 of Guerrieri & Noyes 2005); from C. thebe , F1 distinctly longer than broad (vs quadrate); clava slightly shorter than scape (vs distinctly longer); third valvula fused to second valvifer (vs separated); and the shape of male antenna and genitalia (cf. figs 33 and 34 of Guerrieri & Noyes 2005). In the key to Palearctic species of Copidosoma (Trjapitzin 1989) , the new species runs to C. truncatellum (Dalman) , but can be separated from the latter by the antenna with F1– F3 longer than broad and F1 longer than F2 (vs all funicular segments transverse, at most F1 quadrate and shorter than F2), third valvula fused to second valvifer (vs separated), legs with at least pro- and mesotibia mostly yellow (vs all legs black with joints brown), and the shape of male genitalia (cf. fig. 55 in Guerrieri & Noyes 2005).

Figures

FIGURES 1–6. Copidosoma heinitane sp. nov., holotype ♀ (No. E1306-01): 1, head, frontal view; 2, antenna; 3, mesosoma, dorsal view; 4, fore wing; 5, legs; 6,metasoma, lateral view.Scale bars=100µm.

FIGURES 7–12. Copidosoma heinitane sp. nov., paratype ♂ (No. E1306-03), 7, head, frontal view; 8, antenna; 9, mesosoma; 10, part of fore wing venation; 11, legs; 12, metasoma with apex of genitalia enlarged.Scale bars=100µm.