Ischnobracon laboriosus (Smith, 1858)

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 : 2204-2205

Ischnobracon laboriosus (Smith, 1858)

( Figure 10 )

Bracon laboriosus Smith, 1858

Bracon laboriosus: Baltazar, 1972

Rhadinobracon rhyssides Enderlein (1918) 1920

Ischnobracon rhyssides (Enderlein) syn. nov.

Material examined

Holotype. Female B. laboriosus : “ Bracon laboriosus Smith ”, “SAR” “ TYPE HYME 2154 Bracon laboriosus Smith 1858 HOLOTYPE ♀ HOPE ENT COLL., OUMNH ” ( OUMNH).

Holotype. Female R. rhyssides , Indonesia “Dohrn, Sumatra, Soekaranda”, “ Rhadinobracon rhyssides type Enderl. ♀ Dr Enderlein det. 1919” ( ZPAN).

Additional specimens. Brunei, one female, Kuala Belalong Field Studies Centre , 115°7′ E, 4°34′ N, 18 May 1991, N. Mawdsley ( BMNH) ; Indonesia, one female, northeast Sumatra, Sibolangil , 400 m, 17 November 1950, M.A. Liestinek ( RMNH) ; one female, western Java, P. Peutiang, Udjung Reslom, 2 August 1955, O.M. R. Wegner ( RMNH) ; one female, western Java, Tjitalakab, December, Sternitzky Collection ( RMNH) ; one female Java, Noesa Kambangan , 1911, R. Jacobson ( RMNH) ; one female, southern Java, Genteng Bay , Tjikepoek, 2 Juily 1939, M. a. Lieftinck ( RMNH) ; Malaysia, one female, South East Sabah, nr Danum Valley Field C[entre], W0N1 Mall. trap 5, c. 150 m, 13 September to 4 October 1987, C.v. Achterberg and D. Kennedy ( RMNH) ; one female, Sandakan , Borneo [Sabah]; one female , Sarawak, 4th Div. Gn. Mulu, 27 June to 19 July 1978, RGS Exp., H. Vallack ( BMNH) ; one female, Kuching [ Sarawak], October 1906, J.H. ( BMNH) ; one female Sar [awak], “56 44”, ( BMNH) ; one female Johore [ West Malaysia], Lenggor F. R., 12 May 1968, C. G. Roche ( BMNH) ; Singapore, two females, coll. Baker “2051874” ( USNM) .

Morphology

Length of body 12.5–14.5 mm, and of ovipositor 6–9 mm. Antenna with 97–104 flagellomeres. Raised median area of first tergite not depressed medially. Fore wing vein cu-a postfurcal. Second submarginal cell rather elongate, vein 2-M than 3.5 times length of 2-SR ( Figure 10A ). Hind wing sub-basal cell largely glabrous. Hind wing vein 2-SC+ R interstitial to sub-transverse.

Colouration

Cream-yellow, the following black (or dark brown as indicated): antennae, differentiated triangular area of lower face, mid-longitudinal line on upper face, middle of frons, stemmaticum and transverse area across vertex and occiput reaching eyes, propleuron, lower half of lateral part of pronotum, mesoscutum except triangular area at anterior of notauli, anterior 0.6 of scutellum, mesopleuron except anterodorsal triangular area, tegula, mesosternum, most of metapleuron (dark brown), anterior and lateral part of propodeum, line on anterior aspect of fore and mid tibia (brown to black), except in specimens from Java in which the tibia is entirely yellow with at most a slight darkening laterally, hind coxa, hind trochantellus and basal 0.8 of femur and tibia (dark brown), hind tarsal articles except apicoventrally and the ventral surface telotarsus, metasomal tergites except antero-laterally and posteriorly. Wings pale smoky-grey to yellow grey with apical border darker grey.

Figures

Figure 10. Automontage® photomicrographs of features of Ischnobracon laboriosus Smith. (A) Habitus showing general colour pattern and hind tarsal colour; (B) base of hind wing showing large glabrous area distal to vein cu-a; (C) hind leg showing uniform colouration.