Adelencyrtus aulacaspidis (Brèthes), Brethes

Zhang, Yan-Zhou & Shi, Zhen-Ya, 2010, The species of Adelencyrtus Ashmead and Epitetracnemus Girault (Hymenoptera: Encyrtidae) from China, Zootaxa 2605, pp. 1-26 : 4-6

2. Adelencyrtus aulacaspidis (Brèthes)

( Figs 3−9 )

Prionomitus aulacaspidis Brèthes, 1914: 29 . Type status unknown (not examined), Chile. Epiencyrtoides aulacaspidis ; Mercet, 1921: 294.

Adelencyrtus aulacaspidis ; Mercet, 1921: 698; Ferrière, 1949: 371; Ferrière, 1953: 116; Tachikawa, 1963b: 171; Hayat, Alam & Agarwal, 1975: 78; Trjapitzin, 1978: 307; Trjapitzin, 1989: 290 −291.

Description. Female. Body about 1.1−1.3 mm long. Body dark brown with green or blue green sheen; antennal scape and pedicel generally dark brown, funicle yellow-brown but F5 and F6 often paler, clava dark brown; fore wing hyaline ( Fig. 4 ); fore leg yellow except femur almost entirely and tibia dorsally dark brown ( Fig. 5 ); mid leg yellow except coxa, apical 1/3 of femur, and subbasal band of tibia dark brown ( Fig. 6 ); hind leg yellow except coax, femur almost entirely and subbasal band of tibia dark brown ( Fig. 7 ).

Head. Frontovertex about 1/4 head width; ocelli forming an angle of about 60º −80º; posterior ocellus touching inner eye margin, and separated from occipital margin by about 3 × its own diameter; antenna ( Fig. 3 ) with scape slightly expanded, about 3.5 × as long as broad; F1−F3 transverse, subequal in size and slightly smaller than F4; F5 and F6 subquadrate; clava about as long as funicle; mandible quadridentate.

Thorax. Fore wing ( Fig. 4 ) about 2.5 × as long as broad; marginal vein 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 ( Fig. 8 ) slightly exserted, by about 1/6 gaster length.

Relative measurements. MT 42, OL 60, GL 17.

Male. Generally similar to female except for antennae and genitalia; antenna as in Fig. 9 . Hosts. Aulacaspis difficilis (Cockerell) , Aulacaspis rosae (Bouche) , Chionaspis salicis (Linnaeus) , Lecanopsis nevesi (Gómez-Menor) ; Pseudaulacaspis pentagona (Targioni-Tozzetti) ; Quadraspidiotus macroporanus (Takagi) ( Tachikawa 1974; Trjapitzin 1989; Noyes 2002). In China, A. aulacaspidis is recorded as an important natural enemy of Lepidosaphes cupressi Borchsenius in Jiangsu Province ( Xu et al. 1995).

Distribution. Argentina, Azerbaijan, Bulgaria, Chile, China, Croatia, Czech Republic, England, France, Georgia, Hungary, Italy, Japan, Kazakhstan, Madagascar, Moldova, New Zealand, Russia, Spain, Switzerland, USA, Ukraine (see Noyes 2002).

Material examined. CHINA: Beijing, 25.iv.1983, ex. Pseudaulacaspis pentagona on peach, coll. D.X. Liao (6 ΨΨ, 2 ɗɗ). Fujian, Taining, 10.vi.1988, coll. P.H. Lin (9 ΨΨ); Taining (Liangye Mt.), 16.xi.2008, coll. F. Yuan (2 ΨΨ). Yunnan, Lijiang, 18.v.1974, ex. Pseudaulacaspis sp., coll. D.X. Liao (1 Ψ, 1 ɗ).

Extralimital material examined. ITALY: Superga near Torino, 16.ix.1969, coll. Z. Bouček (det. J. S. Noyes, 1992) (1 Ψ, BMNH); ENGLAND: Isle of wight, Shanklin, vi.1975, coll. G. Prinsloo (det. G. Prinsloo, 1975) (1 Ψ, BMNH).

Figures

FIGURES 3 − 9. 3 − 8, Adelencyrtus aulacaspidis, female: 3, antenna; 4, fore wing; 5, fore leg; 6, mid leg; 7, hind leg; 8, ovipositor. 9, A. aulacaspidis, male: antenna.