Ischnobracon xanthoflagellaris Quicke and Butcher, 2010

Butcher, Buntika Areekul & Quicke, Donald L. J., 2010, Revision of the Indo-Australian braconine wasp genus Ischnobracon Baltazar (Hymenoptera: Braconidae) with description of six new species from Thailand, Laos and Sri Lanka, Journal of Natural History 44 (35 - 36), pp. 2187-2212 : 2208-2211

Ischnobracon xanthoflagellaris Quicke and Butcher sp. nov.

( Figure 13 )

Material examined

Holotype. Female, Thailand, Kanchanaburi Prov., Thongpapoom, “F1/4”, Malaise trap, B. Butcher ( CUMZ).

Paratypes. Thailand: one female Chiangmai , 4 June 1952 ( USNM) ; 5–9 April 2008, R. and B. Butcher ( CUMZ) ; one female, Phatthalung; 20 m, 7°38′ N, 100°05′ E; 26 May 1988, R. Hensen ( RMNH) ; one female, Satun Province, Tarutao Island , 5–9 April 2008, R. Butcher ( CUMZ) ; Laos: one female, Vientiane Province, Ban Na , 30 October 1968, P. Keng ( BPBM) ; one female, Vientiane Province, Vientiane, 22 July 1965, native collector ( BPBM) ; one female, Wapikhamthong Province, Khong Sedone, Wapi , 31 May 1967, J. L. Gressitt ( BPBM) ; one female, Ile de Khong , 7 September 1965, native collector ( BPBM) ; Vietnam, one female, South Vietnam, Dak Lak, Chu Yang Sin N.P., near dam, 740–940 m, 1–10 June 2007, Malaise traps, C. v. Achterberg and R. de Vries ( RMNH) ; one female, Dông Nai, Cát Tiên N.P., Ficus trail, Malaise trap 1–8, c. 100 m, 1–9 October 2005, C. v. Achterberg and R. de Vries ( RMNH) ; two females same as previous but 13–20 May 2007 ( RMNH) .

Morphology

Length of body 11.0–15.0 mm, of fore wing 9.0– 10.6 mm and of ovipositor (part exserted beyond apex of metasoma) 8.0– 9.5 mm. Antenna with 102–104 flagellomeres. Raised median area of first tergite not conspicuously depressed medially. Fore wing vein cu-a distinctly postfurcal, separated from vein 1-M by up to a vein’s width. Second submarginal cell with vein 2-M 3.0 times length of 2-SR. Base of hind wing with sub-basal cell more or less evenly setose, with only narrow glabrous area distal to vein cu-a posteriorly. Vein 1-SC+R interstitial to sub-transverse.

Colouration

Body and legs entirely orange yellow to yellow except for middle of frons, stemmaticum and vertex reaching eyes which are black. Antennae black basally becoming conspicuously orange yellow on apical 0.3 to 0.5. Wings yellow with mid-grey apical border and fore wing with black spot at apex of pterostigma and at parastigma.

Etymology

From Latin xanthinus meaning yellow and flagellum in reference to the distally yellow antennae.

Figures

Figure 13. Automontage® photomicrographs of features of Ischnobracon xanthoflagellaris sp. nov. (A) Habitus, dorsal view, showing pale apical part of antenna; (B) face, frontal aspect; (C) head and anterior of mesosoma, lateral aspect; (D) hind wing showing pattern and vein 2-SC+R.