Encarsia lounsburyi (Berlese and Paoli)

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 : 2188-2189

51. Encarsia lounsburyi (Berlese and Paoli)

( Figures 162–164 )

Prospaltella lounsburyi Berlese and Paoli 1916, p 305 . Syntypes ♀, Madeira, ex Chrysomphalus dictyospermi Morgan (ISZA, not examined)

Aspidiotiphagus lounsburyi (Berlese and Paoli) : Berlese 1917, p 12 –13. Change of combination.

Aspidiotiphagus lounsburyi (Berlese and Paoli) : Dozier 1926, p 275–277; Paoli 1926, p 97; Silvestri 1929, p 903; Mercet 1930, p 69; Compere 1936, p 294; De Santis 1948, p 231 –233; Flanders 1953, p 268; Thompson 1953, p 9; 1956, p 18; Alam 1956, p 259; Ferrière 1965, p 147; Nikol’skaya and Yasnosh 1966, p 258; Herting 1972, p 163; DeBach and Rose 1981, p 673.

Hispaniella africana Hill 1970, p 97 –99. Synonymy by Subba Rao 1984.

Encarsia lounsburyi (Berlese and Paoli) : Viggiani and Mazzone 1979, p 47; Viggiani 1987b, p 153; Hayat 1989a, p 12; Viggiani and Ren 1993, p 227; Huang 1994, p 199; Polaszek et al. 1999, p 152.

Diagnosis

Female. Colour: head brown, vertex paler except two transverse stripes. Mesosoma yellow except pronotum, mesoscutum anteriorly, axillae partly, mesopleuron, and propodeum laterally brown. Metasoma predominantly brown. Antenna yellow-brown with apex slightly darkened. Fore wing with dark band behind marginal vein. Legs yellow.

Morphology: stemmaticum with transversely strigose surface sculpture. Antennal formula 1,1,3,3, apical segment conical. Pedicel longer than F1 (1.50). F1 1.60 times as long as its maximum width, subequal to F2 and F3, third funicular segment broader than first and second. F2 subequal in length to F3. Flagellomeres with the following numbers of sensilla: F1: 0, F2: 0, F3: 0, F4: 3, F5: 3, F6: 3. Midlobe of mesoscutum with four setae, arranged symmetrically, side lobes with one seta each. Scutellar sensilla widely separated (approximately seven times the maximum width of a sensillum). Distance between anterior pair of scutellar setae slightly greater than between posterior pair. Fore wing with bare area near stigmal vein, about 4.5 times as long as width of disc. Marginal fringe 1.72 times as long as width of disc. Basal cell without setae. Submarginal vein with one seta, marginal vein anteriorly with four setae. Tarsal formula 5-5-5. Apical spur of midtibia longer than half the length of the corresponding basitarsus (0.70). Tergites laterally with the following numbers of setae: T1: 0, T2: 1, T3: 1, T4: 0, T5: 2, T6: 2, T7 with four setae. Ovipositor slightly shorter than midtibia. Third valvula 0.60 times as long as second valvifer.

Male. Unknown.

Species group placement. E. citrina group.

Distribution. Australia: Australian Capital Territory, Norfolk Island. Cosmopolitan.

Host. Not reared in the study area, but elsewhere the species has been reared from the following hosts: Diaspididae : Aonidiella aurantii (Maskell) ( Huang and Polaszek 1998) , Chrysomphalus dictyospermi (Morgan) ( Berlese and Paoli 1916) , Parlatoria zizyphi (Lucas) ( Silvestri 1929) , Carulaspis visci (Schrank) , Chrysomphalus aonidum L., Chrysomphalus sp. , Cornuaspis (5 Lepidosaphes ) beckii ( Peck 1963) , Hemiberlesia sp. ( Ren 1988) .

Material examined

Australian Capital Territory: Blundell Creek , 3 km E of Piccadilly Circus (35 ° 229S, 148 ° 509E), 850 m, February 1984 ( Weir , Lawrence , Johnson) ( ANIC). Norfolk Island: 1♀, Rocky Point Reserve, 14 November to 2 December 1984 (I. D. Naumann) ( ZSMG) .

Comments

Similar to E. citrina but with only a single seta on the submarginal vein, whereas in E. citrina there are two.

Figures

Figures 162–164. Encarsia lounsburyi Berlese and Paoli, female. (162) Mesosoma and gaster. (163) Antenna. (164) Fore wing.