Colastomion parotiphagus Quicke, 2012

Quicke, Donald L. J., Smith, M. Alex, Miller, Scott E., Hrcek, Jan & Butcher, Buntika, 2012, Colastomion Baker (Braconidae, Rogadinae): nine new species from Papua New Guinea reared from Crambidae, Journal of Hymenoptera Research 28, pp. 85-121 : 95-97

Colastomion parotiphagus Quicke sp. n. Figs 30-32

Material examined.

Holotype male, Papua New Guinea, Madang Province, Wanang, 30-May-07, 145°10.910'E, 5°13.853'S, 100m, WS-2D-0932, ex caterpillar on Sarcocephalus coadunatus (Sm.) Druce ( Rubiaceae ), CATX043 (voucher USNM EN T 00680014; BOLD ASQSP026-08; Genbank JX034709) [Host - Parotis tricoloralis (Pagenstecher)].

For details of 34 paratypes see Table 2 .

For details of 34 paratypes see Table 2 . Specimens USNM ENT 00680067, USNM ENT 00680154 and USNM ENT 00690187 are deposited in the BMNH.

Morphology.

Length of body 6.2-9.5 mm, of fore wing 5.8-7.5 mm and of antenna 7.5-9.5 mm.

Head. Antenna with 50 flagellomeres. Terminal flagellomere acuminate. Median flagellomeres 2 × longer than wide. 3rd segment of maxillary palp of female distinctly swollen, approximately 3.5 × longer than maximally wide. 5th segment reduced and approximately half length of 6th. Base of mandible very close to eye, closest point approximately 0.2 distance from middle of anterior tentorial pit and eye. Distance between anterior tentorial pits approximately 5 × shortest distance between pit and eye. Width of face: width of head across eyes: height of eye = 1.0 : 2.5 : 1.6. Face transversely striate except for smooth triangular area above clypeus extending nearly to antennal sockets. Frons largely smooth but with well developed ridge running parallel to eye margin and reaching stemmaticum. Shortest distance between posterior ocelli: transverse diameter of posterior ocellus: shortest distance between posterior ocellus and eye = 1.5: 2.5:1.0. Occipital carina complete, well developed dorsally.

Mesosoma. Notauli deep, complete, finely punctate anteriorly becoming obliquely crenulated posteriorly, uniting to form groove before posterior margin of mesoscutum. Mesoscutum with an elongate groove between notauli anterior to the point of their fusion. Propodeum with complete midlongitudinal carina. Mesopleuron largely smooth. Precoxal sulcus narrow and deep on posterior half of mesopleuron, finely crenulated. Propodeum with complete midlongitudinal carina.

Fore wing. Vein 1-CU1 postfurcal. Vein 2-CU1 6.4 × longer than 1-CU1. Lengths of veins SR1: 3-SR: r = 4.0: 1.6 :1.0. Vein 2-SR 2.0 × 2-SR+M.

Hind wing. Vein M+CU 1.75 × length of 1-M. Vein 2-SC+R weakly thickened, distinctly reclivous. Vein SR strongly curved on basal half, almost reaching wing margin approximately half distance to wing tip, then distinctly diverging again towards wing tip.

Metasoma. 1st metasomal tergite 2.2 × longer than posteriorly wide. 2nd metasomal tergite as long as maximally wide, with well developed midbasal triangular area giving rise to complete midlongitudinal carina; irregularly longitudinally striate with approximately 8 striate lateral to midlongitudinal carina. 3rd metasomal tergite 1.4 × wider than long; longitudinally striate and with midlongitudinal carina more or less differentiated. 4th and 5th tergites longitudinally striate. 6th tergite smooth (faintly aciculate).

Coloration.

Head and body ochreous yellow, stemmaticum black, hypopygium usually brown. Scapus and pedicellus bright yellow, contrasting with flagellum which is usually largely black but with variable paler brown-yellow to yellow zone from approximately middle to near the apex. Wing membrane yellowish on basal half, pale grey distally; pterostigma bicolorous, dark brown distally but with large yellow zone basally and posterobasally.

Etymology.

Named after the known host genus.

Biology.

Solitary larval endoparasitoids of Parotis tricoloralis (Pagenstecher) ( Crambidae ), Parotis hilaralis (Walker) ( Crambidae ) and Haritalodes adjunctalis Leraut ( Crambidae ).

Figures

Figures 30 - 32. Colastomion parotiphagus sp. n. holotype, Cell ^ D ® light photomicrographs. 30 Habitus, dorsal view 31 head and anterior mesosoma, dorsal view 32 head and mesosoma, lateral view.