Epitetracnemus intersectus (Fonscolombe)

Zhang, Yan-Zhou & Shi, Zhen-Ya, 2010, The species of Adelencyrtus Ashmead and Epitetracnemus Girault (Hymenoptera: Encyrtidae) from China, Zootaxa 2605, pp. 1-26 : 20-21

3. Epitetracnemus intersectus (Fonscolombe)

( Figs 61−64 )

Encyrtus intersectus Fonscolombe, 1832: 305 −306. Type material lost ( Graham, 1992: 1103).

Epitetracnemus intersectus ; Graham, 1992: 1103.

Encyrtus dendripennis Ratzeburg, 1852: 189 . Type status unknown. Synonymized with E. intersectus by Graham, 1992: 1103.

Eupelmus pictipennis Six, 1867: 219 . Lectotype Ψ (designated by Gijswijt 1969: 195, not examined), Netherlands. Synonymized with Encyrtus dendripennis by Six, 1876: 195; synonymized with Anabrolepis zetterstedtii by Gijswijt, 1969: 195; synonymized with E. intersectus by Graham, 1992: 1103.

Encyrtus zetterstedtii Westwood, 1837: 440 . Lectotype Ψ (designated by Graham 1969: 291, HDOU, not examined), United Kingdom. Synonymized with E. intersectus by Graham, 1992: 1103.

Habrolepis zetterstedtii ; Mayr, 1876: 752.

Anabrolepis zetterstedtii ; Timberlake, 1920: 434.

Epitetracnemus zetterstedtii ; Noyes & Hayat, 1984: 273; Trjapitzin, 1989: 292.

Anabrolepis extranea Timberlake, 1920: 434 . Holotype Ψ (Type status unknown, not examined), USA. Synonymized with E. intersectus by Graham, 1992: 1103.

Anabrolepis extranea ; Yasumatsu & Tachikawa (1949); Ishii (1928); Tachikawa (1955, 1974).

Epitetracnemus extranea ; Noyes & Hayat, 1984: 273.

Description. Female. Body length 1.1−1.5 mm. Body dark brown with a metallic green or blue sheen; mesoscutum and scutellum with green-blue reflections; Body dark brown with a metallic green-blue sheen; antenna ( Fig. 61 ) generally dark brown except apex of clava, F5 and F6 yellow or F5 sometimes yellowishbrown; fore wing with infuscate pattern as in Fig. 62 ; fore leg dark brown except apices of coxa, femur and tibia yellow; mid leg ( Fig. 63 ) dark brown except basal 1/3 of femur, apical 2/3 of tibia, tibia spur and tarsus yellow; hind leg dark brown, except apices of tibia and tarsus yellow.

Head. Frontovertex at anterior ocellus 1/5−1/4 head width; ocelli forming an angle of 45º −60º; posterior ocellus about half its own diameter from inner eye margin, and separated from occiptal margin by 3−4 × its own diameter; antennal scape about 2.7 × as long as wide; F1−F4 transverse, smaller than F5 and F6 ( Fig. 61 ); mandible with two teeth and an upper truncation.

Thorax. Fore wing ( Fig. 62 ) about 2.3 × as long as broad; marginal vein about as long as stigmal vein; postmarginal vein short or nearly absent.

Gaster. Ovipositor sheaths ( Fig. 64 ) slightly exserted, by about 1/7 gaster length.

Relative measurements. MT 55, OL 70, GL 20.

Male. Unknown.

Hosts. Many species of Diaspididae (see Noyes 2002). Epitetracnemus intersectus was also recorded as a parasitoid of Pseudaulacaspis pentagona by Qu et al. (1994), but this host record probably results from a misidentification of E. comis .

Distribution. Very broadly distributed (see Noyes 2002); recorded from China by Trjapitzin (1978).

Material examined. CHINA: Beijing, 3.vii.1955, coll. D.X. Zhang (3 ΨΨ). Fujian, Fuzhou, 23.ii.1963, coll. X.F. Zhao (1 Ψ). Guangxi, Jiangkou, 27.v.2002, coll. Y.Z. Zhang (1 Ψ); Napo, 30.iii.1998, coll. C.D. Zhu (1 Ψ). Hebei, Weichang, 11.v.1985, coll. H.F. Mi (1 Ψ). Liaoning, Dalian, 20.i.1978, coll. G.T. Xu (1 Ψ); Shenyang, 1991, coll. J.X. Lou (1 Ψ).

Figures

FIGURES 61 − 64. 61 − 64, Epitetracnemus intersectus, female: 61, antenna; 62, fore wing; 63, mid leg; 64, ovipositor.