Encarsia marxi (Girault)

Schmidt, Stefan & Polaszek, Andrew, 2007, The Australian species of Encarsia Förster (Hymenoptera, Chalcidoidea: Aphelinidae), parasitoids of whiteflies (Hemiptera, Sternorrhyncha, Aleyrodidae) and armoured scale insects (Hemiptera, Coccoidea: Diaspididae), Journal of Natural History 41 (33 - 36), pp. 2099-2265 : 2195

55. Encarsia marxi (Girault)

( Figures 174–176 )

Coccophagus marxi Girault 1936 [446], p 1. Holotype ♀, Australia, Queensland, Brisbane, Indooroopilly , December 1929 (QMBA, type no. T. 9201, examined).

Coccophagus marxi Girault : Dahms 1984, p 796.

Encarsia marxi (Girault) : Viggiani 1985c, p 244 –245. Change of combination.

Redescription (holotype)

Female. Colour: head and body yellow, pronotum, axillae partly and mesopleuron darker. Gaster yellow except T3 – T6 with dark transverse bands (according to Girault’s description, indiscernible in type specimen). Antenna brown. Fore wing hyaline. Legs yellow .

Morphology: antennal formula 1,1,3,3, apical segment appears conical. Pedicel subequal in length to F1. F1 about two times as long as its maximum width, subequal in length to F2, and slightly shorter than F3 (0.83). F2 slightly shorter than F3 (0.83). Scutellar sensilla widely separated. Fore wing about 2.8 times as long as width of disc. Marginal fringe 0.39 times as long as width of disc. Basal cell with three setae. Marginal vein anteriorly with eight setae. Tarsal formula 5-5-5. Apical spur of midtibia distinctly longer than half the length of the corresponding basitarsus (0.75). Ovipositor longer than midtibia (1.75) and 2.17 times as long as clava. Third valvula 0.27 times as long as second valvifer.

Male. Unknown.

Species group placement. E. inquirenda group sensu Hayat (1989a).

Distribution. Australia: Queensland.

Host. Unknown.

Figures

Figures 174–176. Encarsia marxi Girault, female. (174) Overall view of type specimen. (175) Head and antenna. (176) Fore wing.