Cornutorogas sumatrensis van Achterberg, 2004

Chen, Xuexin, Belokobylskij, S. A., Van achterberg, C. & Whitfield, J. B., 2004, Cornutorogas, a new genus with four new species of the subfamily Rogadinae (Hymenoptera: Braconidae) from the Oriental region, Journal of Natural History 38 (17), pp. 2211-2223 : 2222-2223

Cornutorogas sumatrensis van Achterberg , sp. nov.

( figures 24–27 )

Female

Body length 6.0 mm, fore wing length 4.4 mm. If characters not mentioned then as in the type species.

Head. Antenna with 63 segments; length of antenna 1.9 times length of body, 2.6 times length of fore wing; length of first flagellar segment 1.1 times second segment; length of first, second and penultimate flagellar segments 4.4, 4.0 and 2.3 times their width, respectively; occipital carina largely obsolescent ( figure 26 ); length of eyes in dorsal view 5.8 times temple; POL:OD~0.67; OD:OOL~1.0; length of malar space 1.2 times basal width of mandible; length of maxillary palp 1.9 times height of head.

Mesosoma . Length of mesosoma 1.4 times (without propodeal spine; with spine 1.8 times) as long as high; pronope distinct ( figure 27 ); pronotum comparatively slender in dorsal view ( figure 27 ) and in dorso-lateral view medio-posterior area rather wide and moderately convex ( figure 25 ); side of pronotum comparatively slender and crests long ( figure 26 ); precoxal sulcus narrowly absent anteriorly and more widely posteriorly; mesopleuron sparsely finely punctate ventrally, densely punctate dorsally and antero-dorsally with few very coarse crenulae; metapleuron mainly punctate; mesoscutum punctulate, setose, with distinct short groove medio-posteriorly; axillar anterolateral lobes comparatively large and less robust ( figure 24 ); scutellum sparsely punctulate; propodeum coarsely reticulate-rugose, but medio-anteriorly mainly smooth; lateral horns of propodeum 0.8 times as long as first metasomal tergite.

Wings. Fore wing: r two-thirds as long as 3-SR; SR1 just more than 3 times as long as 2-SR; m-cu more than 3 times as long as 2-SRzM; 1-CU1 just less than half as long as cu-a and about 0.1 times as long as 2-CU1. Hind wing: cu- a distinctly curved; subbasal cell with only few setae; MzCU about 0.7 times as long as 1-M and about 2.4 times as long as 1r-m.

Legs. Length of hind femur, tibia and basitarsus 6.0, 11.0 and 10.0 times their width, respectively; both hind tibial spurs 0.22 times as long as basitarsus.

Metasoma. First tergite 1.3 times as long as broad apically, latero-basally hardly protruding, its surface very coarsely longitudinally rugose, intermingled with shallow punctures, with strong median carina and dorsal carinae complete and remaining separated; second tergite with narrow medio-basal area and complete median carina continued up to apex of third tergite; second to fourth tergites coarsely longitudinally rugose, but especially laterally with punctures; fifth tergite densely and coarsely punctate, but laterally coarsely rugose; length of ovipositor sheath 0.12 times as long as fore wing.

Colour. Yellowish brown; palpi, basal seventh of hind tibia and of basitarsus, apex of third hind tarsal segment, fourth middle and hind tarsal segments ivory; spines of propodeum, scape and pedicel (except outer side), humeral plate, pronotum except posteriorly, axillar anterolateral lobes, mandible, fore and middle coxae and trochanters, and metasoma ventrally, pale yellowish or whitish; third to sixth basal antennal segments yellowish brown; 30th to 42nd antennal segments whitish, and remainder of antenna dark brown; head, pronotal side dorso-posteriorly, mesopleuron antero-dorsally and mesoscutum black; streak on outer side of scape and pedicel, tegulum, scutellum laterally, metasoma dorsally (but laterally largely yellowish), hind trochanter partly, apex of hind femur, remainder of hind tibia and of tarsi, pterostigma and veins dark brown; fore and middle femora apically and fore and middle tibiae somewhat infuscate; wing membrane slightly infuscate.

Material examined

HOLOTYPE: female, Indonesia: N. Sumatra, Aceh, Bengkung (Soraya), N. P. Gn. Leuser, Mal [aise] trap, February 1995, Y. v. Nierop and Dolly, RMNH’95 ( RMNH).

Figures

FIGS 16–31. (16–19) Cornutorogas maetoi sp. nov., holotype female. (20–23) C. orientalis sp. nov., paratype male, China, Taiwan, Wushe. (24–27) C. sumatrensis sp. nov., holotype female. (28–31) C. javensis sp. nov., holotype female. (16, 20, 24, 28) Detail of axillar anterolateral lobes. (17, 21, 25, 29) Pronotum, dorso-lateral aspect. (18, 22, 26, 30) Pronotum, lateral aspect. (19, 23, 27, 31) Pronotum, dorsal aspect. Scales: 0.8× scale bar (16); 1.0× (17–19, 24–31); 1.1× (20–23).