Coccophagus infuscatus Zhang & Hu & Zhang 2023, sp. nov.
Creators: name: Zhang, Lan-Wei
name: Hu, Hong-Ying
name: Zhang, Yan-Zhou
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Aphelinidae
Coccophagus
Coccophagus infuscatus

description: Coccophagus infuscatus Zhang & Zhang, sp. nov.
(Figs. 13–23)
Type material. Holoytpe. ♀ [on slide], CHINA, Tibet, Yadong, 27.V.2022, HL Li and LW Zhang (deposited in IZCAS), reared from Eulecanium kuwanai Kuwana on Prunus cerasifera Ehrhar. Paratypes. 5♀, same data as holotype (deposited in IZCAS).
Diagnosis. Female. Mesal third of pronotum dark brown. Fore wing (Fig. 17) with a large infuscated patch beneath the marginal vein.
Description. Female. Body stout (Figs. 13, 14), about 1.1 mm (excluding ovipositor sheath). Head lemon yellow. Antenna (Fig. 16) brown except scape brownish yellow. Mesosoma mainly lemon yellow except mesal third of pronotum dark brown. Fore wing (Fig. 17) with a large infuscated patch beneath the marginal vein. Legs mostly pale yellow except distal tarsi, hind coxae and femura dark brown. Metasoma dark brown.
Head. Head in frontal view about 0.95× as high as wide; in dorsal view, frontovertex about 0.55× head width. Eyes densely setose; ocellar triangle with apical angle obtuse; POL 2× as long as OOL; torulus with upper margin below level of lower eyes; mandible with two acute teeth and a short dorsal truncation. Antenna stout (Fig. 16), scape 3.5× as long as wide; pedicel 1.92× as long as wide, nearly as long as F1; F1 about 1.15× as long as wide, slightly longer than F2 and F3; F2 about as long as wide or slightly wider than length; F3 about 0.87× as long as wide; clava about 1.5× as long as wide and almost equal in length to funicle. Relative measurements: HL 21, HW 22, FV 12, POL 6, OOL 3, PL 7, PW 2, SL 2.5, SW 1.3, F1L 2.3, F1W 2, F2L 2, F2W 2, F3L 2, F3 W 2.3, CL 6, CW 4.
Mesosoma. Dorsum of mesosoma finely reticulate, with cells of sculpture on mesoscutellum. Mesoscutum (Fig. 21) 0.89× as long as wide and with about 50 dark brown setae; side lobe with about 10 dark brown setae; axilla with 6 dark brown setae; mesoscutellum (Fig. 21) 0.77× as long as wide; densely setose and with posterior pair of setae shorter than mesoscutellar posterior setae. Fore wing (Fig. 17) 2.3× as long as wide and with a large infuscated patch beneath marginal vein; marginal vein with 19 setae and longer than submarginal vein; postmarginal vein very short; stigmal vein with a distinct neck and swollen stigma; stigma with sensilla arranged in a line. Hind wing 3.56× as long as wide. Mid tibial spur (Fig. 19) slightly shorter than corresponding basitarsus. Relative measurements: SCL 10, SCW 13, FWL 70, FWW 30, SMV 12, MV 17, HWL 32, HWW 9, MT 17.3, MST 5, MBT 7.
Metasoma. Metasoma slightly shorter than mesosoma. Ovipositor (Fig. 23) originating from posterior margin of TV and sheath slightly exserted; second valvifer 2.6× as long as third valvula and the latter as long as mid basitarsus. Ovipositor about 1.1× as long as mid tibia. Relative measurements: OL 19, SVL 13, TVL 5.
Male. Unknown.
Variation. Very little in material available.
Host. Eulecanium kuwanai Kuwana (Hemiptera: Coccidae).
Etymology. The specific name refers to its fore wing with a large infuscated patch beneath the marginal vein.
Comments. In Hayat’s key (1998), the species runs to couplet 13 and close to C. chloropulvinariae Hayat and C. silvestrii. In the key of Chen & Li (2017), the species runs to couplet 5 and close to C. crenatus Huang. Female C. infuscatus can be separated from these species by combination of the following: fore wing with a large infuscated patch beneath the marginal vein, apex of mid femur and base of mid tibia without peg-like brisles.
description: Published as part of Zhang, Lan-Wei, Hu, Hong-Ying & Zhang, Yan-Zhou, 2023, Two new species of Coccophagus Westwood (Hymenoptera: Aphelinidae) from China, pp. 342-350 in Zootaxa 5258 (3) on pages 346-347, DOI: 10.11646/zootaxa.5258.3.7, http://zenodo.org/record/7780471