Adelencyrtus antennatus Compere & Annecke

Zhang, Yan-Zhou & Shi, Zhen-Ya, 2010, The species of Adelencyrtus Ashmead and Epitetracnemus Girault (Hymenoptera: Encyrtidae) from China, Zootaxa 2605, pp. 1-26 : 3

1. Adelencyrtus antennatus Compere & Annecke

( Figs 1−2 )

Adelencyrtus antennatus Compere & Annecke, 1961: 49 . Syntypes (BMNH, examined), South Africa. Adelencyrtus antennatus ; Hayat, Alam & Agarwal, 1975: 78; Prinsloo, 1983: 2, 27.

Description. Female. Body about 1.3 mm long. Body dark brown with green or blue sheen; antenna brownish-yellow except pedicel and apical 2/3 of clava largely brown ( Fig. 1 ); fore wing ( Fig. 2 ) hyaline except for infuscate spot beneath marginal vein and about apical half slightly infuscate; legs yellow except coxae dark brown (sometimes fore coxa yellowish-white and mid tibia brownish subbasally).

Head. Frontovertex about 1/4 head width; ocelli forming an angle of about 30º; posterior ocellus touching inner eye margin, and separated from occipital margin by about 4 × its own diameter; antenna ( Fig. 1 ) with scape slightly expanded, about 4 × as long as broad; pedicel about as long as F1 and F2 combined; F1 transverse and the smallest, F2−F6 subquadrate and subequal in size; clava about as long as combined length of F3−F6; mandible quadridentate.

Thorax. Fore wing ( Fig. 2 ) about 2.1× as long as broad; marginal vein long, about 3× as long as broad; postmarginal vein about half as long as marginal vein; stigmal vein slightly longer than postmarginal vein.

Gaster. Ovipositor sheaths slightly exserted, by about 1/6−1/5 gaster length.

Relative measurements. MT 55; OL 65; GL 18.

Male. Unknown.

Host. Aspidiotus sp. ( Diaspididae ) ( Compere & Annecke 1961).

Distribution. China (new record), South Africa ( Compere & Annecke, 1961).

Type material examined. SOUTH AFRICA: Durban, Natal, Dec. 8, 1925, ex. grey Aspidiotus ; coll. E.W. Rust (2 ΨΨ syntypes, BMNH).

Non-type material examined. CHINA: Yunnan, Xiashuangbanna, 22.vii.2008, coll. G Zheng (1 Ψ).

Comments. The Chinese female agrees with original description of A. antennatus except that all funicular segments except F1 are slightly longer than broad and the fore coxae are yellow (fore coxae apically yellowish in syntypes). We believe these differences falls within the limits of variation of the species.

Figures

FIGURES 1 − 2. 1 − 2, Adelencyrtus antennatus, female: 1, antenna; 2, fore wing.