Epitetracnemus comis Noyes & Ren

Zhang, Yan-Zhou & Shi, Zhen-Ya, 2010, The species of Adelencyrtus Ashmead and Epitetracnemus Girault (Hymenoptera: Encyrtidae) from China, Zootaxa 2605, pp. 1-26 : 19-20

2. Epitetracnemus comis Noyes & Ren

( Figs 55−60 )

Epitetracnemus comis Noyes & Ren, 1987: 172 −173. Holotype Ψ (IZCAS, examined), China.

Epitetracnemus comis ; Trjapitzin, 1989: 486; Zhang & Huang, 2004: 64; Xu & Huang, 2004: 139.

Description. Female. Body length 1.0− 1.5 mm. Body dark brown with a metallic green or blue sheen; mesoscutum with green-blue reflections; scutellum with purplish reflections; antenna ( Fig. 55 ) generally dark brown except apices of scape and pedicel, and F6 yellowish, F1−F5 yellowish-brown; fore wing with infuscate pattern as in Fig. 56 ; fore leg ( Fig. 57 ) yellow except femur almost entirely and tibia dorsally dark brown, tarsus dark yellowish-brown; mid leg ( Fig. 58 ) yellow except coxa, apical half of femur and subbasal band of tibia dark brown; hind leg ( Fig. 59 ) yellow except coxa and subbasal band of tibia dark brown.

Head. Frontovertex width at anterior ocellus 1/5−1/6 head width; ocelli forming an angle of about 45º; posterior ocellus touching inner eye margin, and separated from occiptal margin by 2 × its own diameter; antennal scape about 4 × as long as broad; F1−F3 slightly transverse; F4−F6 subquadrate; clava about as long as funicle ( Fig. 55 ); mandible with two teeth and an upper serrate truncation ( Noyes & Ren 1987, fig. 8).

Thorax. Fore wing ( Fig. 56 ) about 2.5 × as long as broad; marginal vein conspicuously longer than stigmal vein; postmarginal vein short or nearly absent.

Gaster. Ovipositor sheaths ( Fig. 60 ) slightly exserted, by 1/8−1/7 gaster length.

Relative measurements. MT 50, OL 70, GL 20.

Male. Generally similar to female except for antennae and genitalia (see Noyes & Ren 1987).

Host. Pseudaulacaspis pentagona Targioni-Tozzetti ( Noyes & Ren 1987) .

Distribution. China ( Noyes & Ren 1987; Zhang & Huang 2004).

Type material examined. CHINA: Guangdong, Baiyun, 19.viii.1984, ex. Pseudaulacaspis pentagona on Prunus persica , coll. H. Ren (holotype Ψ, IZCAS).

Non-type material examined. CHINA: Sichuan, Chengdu, 23.vii.1963, ex. Pseudaulacaspis pentagona on Prunus persica , coll. D.X. Liao (5 ΨΨ); Chengdu, 10−11.vii.1963, coll. D.X. Liao (12 ΨΨ, 2 ɗɗ). Zhejiang, Wuyan Ling, 3.viii.2005, Coll. Y.X. Zhao (1 Ψ).

Comments. Recently, Li et al. (2002) described Epitetracnemus kosef Li & Byun from Korea, which is very similar to E. comis except the antennal clava is slightly longer.

Figures

FIGURES 55 − 60. 55 − 60, Epitetracnemus comis, female: 55, antenna; 56, fore wing; 57, fore leg; 58, mid leg; 59, hind leg; 60, gaster showing ovipositor.