Encarsia ancora, Schmidt & Polaszek, 2007

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 : 2123-2124

7. Encarsia ancora n. sp.

( Figures 23–26 )

Description

Female. Colour: head yellow, postgenae with brown markings. Mesosoma yellow, pronotum and anterior margin of mesoscutal midlobe brown. Metasoma predominantly brown. Antenna yellow, apical segment of clava brown. Fore wing with dark band behind marginal vein. Legs yellow.

Morphology [measurements of holotype in square brackets]: maxillary palp twosegmented. Stemmaticum with reticulate surface sculpture ( Figure 25 ). Antennal formula 1,1,3,3. Pedicel subequal to or longer than F1 (1.12–1.45) [1.12]. F1 longer than wide (1.20–1.56) [1.56], shorter than F2 (0.60–0.81) [0.81] and F3 (0.60–0.78) [0.78]. Flagellomeres with the following numbers of sensilla: F1: 0, F2: 2–3, F3: 3, F4: 3, F5: 2–3, F6: 2–3. Midlobe of mesoscutum with eight setae, side lobes with three setae each. Scutellar sensilla rather closely placed (approximately three times the maximum width of a sensillum). Distance between anterior pair of scutellar setae smaller than between posterior pair. Fore wing 2.1–2.2 [2.2] times as long as width of disc. Marginal fringe 0.15–0.19 [0.15] times as long as width of disc. Basal cell with six to eight setae. Submarginal vein with two setae, marginal vein anteriorly with six setae. Tarsal formula 5-5-5. Apical spur of midtibia subequal in length to corresponding basitarsus. Tergites laterally with the following numbers of setae: T1: 0, T2: 1, T3: 1, T4: 1, T5: 3, T6: 3, T7 with four setae. Ovipositor shorter than midtibia (0.71–0.72) [0.71], subequal in length to clava. Third valvula about 0.6–0.7 [0.6] times as long as second valvifer, apically appearing truncate.

Male. Unknown.

Species group placement. Not established.

Distribution. Australia: Queensland.

Host. Aleyrodidae : Xenaleyrodes timonii Martin.

Material examined

Queensland: Holotype: ♀, Heathlands (11 ° 459S, 142 ° 359E), 22 March to 25 April 1992 (T. McLeod), Malaise # 2, dump, open forest (ANIC). Paratype: 1♀, Bowen near Queens Beach, November 1999 (P. De Barro), ex Xenaleyrodes timonii on Exocarpos latifolius R.Br. (Cyperaceae) (ZSMG).

Figures

Figures 23–26. Encarsia ancora n. sp., female. (23) Mesosoma and gaster. (24) Antenna. (25) Stemmaticum. (26) Fore wing.