Encarsia paucisetosa, 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 : 2209-2210

65. Encarsia paucisetosa n. sp.

( Figures 205–207 ) Encarsia protransvena: Schmidt et al. 2001, p 383 (misidentification (partim) of E. paucisetosa ).

Description

Female. Colour: head yellow except stemmaticum with small brown spots adjacent to ocelli. Mesosoma yellow, sometimes pronotum, anterior margin of mesoscutal midlobe, base of T1 sometimes slightly brown and occasionally the following tergites laterally tinged with brown. Antenna yellow. Fore wing hyaline. Legs yellow.

Morphology [measurements of holotype in square brackets]: stemmaticum with reticulate surface sculpture. Antennal formula 1,1,3,3. Pedicel subequal in length to F1. F1 2.33 [2.33] times as long as its maximum width, slightly shorter than or subequal in length to F2 (0.90–1.00) [1.00] and slightly shorter than F3 (0.80–0.88) [0.88]. Flagellomeres with the following numbers of sensilla: F1: 0, F2: 1, F3: 2, F4: 2, F5: 2, F6: 2–3. Midlobe of mesoscutum with five to seven [five] setae, centrally without or with only one seta, side lobes with three setae each. Scutellar sensilla close together, separated by a distance of about two times the width of a sensillum. Distance between anterior pair of scutellar setae smaller than between posterior pair, anterior setae small and about half as long as posterior ones. Fore wing 2.5–2.6 [2.6] times as long as width of disc. Marginal fringe 0.30–0.37 [0.30] times as long as width of disc. Submarginal vein with two setae, marginal vein anteriorly with six to seven setae. Basal cell with three to six setae. Tarsal formula 5-5-5. Apical spur of midtibia longer than half the length of the corresponding basitarsus (0.68–0.73) [0.68]. 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 longer than midtibia (1.50–1.54) [1.50] and 2.25–2.33 [2.33] times as long as clava. Third valvula 0.30–0.31 [0.30] times as long as second valvifer.

Male. Unknown.

Species group placement. Not established.

Distribution. Western Australia.

Host. Aleyrodidae : Aleurolobus sp. , Aleuroplatus pectiniferus (Quaintance and Baker) , Dialeurodes (s.l.) sp.

Material examined

Western Australia: Holotype: ♀, Purnululu National Park, 8 May 2000 (S. and O. Schmidt), ex Dialeurodes (s.l.) sp. on Eucalyptus sp. (Myrtaceae) (ANIC). Paratypes: 1♀, Kununurra, 3 May 2000 (S. and O. Schmidt), ex Aleurolobus sp. on Bridelia tomentosa Blume (Euphorbiaceae) (ZSMG); 1♀, Keep River National Park, 3 May 2000 (S. Schmidt), ex Aleuroplatus pectiniferus on Hakea arborescens R.Br. (Proteaceae) (ZSMG); 1♀, Barton Plain, 18 June 1997 (G. Bellis), ex Aleurolobus sp. on Eucalyptus bigalerita F. Muell. (Myrtaceae) (ANIC).

Figures

Figures 205–207. Encarsia paucisetosa n. sp., female. (205) Mesosoma and gaster. (206) Antenna. (207) Fore wing.