Cornutorogas maetoi 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 : 2219-2220

Cornutorogas maetoi van Achterberg , sp. nov.

( figures 16–19 )

Female

Body length 5.3 mm, fore wing length 4.5 mm. If characters not mentioned then as in the type species.

Head. Antenna with 59 segments; length of antenna 1.8 times length of body, 2.1 times length of fore wing; length of first flagellar segment 1.2 times second segment; length of first, second and penultimate flagellar segments 3.6, 2.9 and 1.7 times their width, respectively; occipital carina very strongly developed, lamelliform ( figure 18 ); length of eyes in dorsal view 8.0 times temple; POL:OD~0.75; OD:OOL~1.0; length of malar space 1.5 times basal width of mandible; length of maxillary palp 1.6 times height of head.

Mesosoma . Length of mesosoma 1.3 times (without propodeal spine; with spine 1.8 times) as long as high; pronope shallow ( figure 19 ); pronotum comparatively robust in dorsal view ( figure 19 ) and in dorso-lateral view hardly convex medio-posteriorly ( figure 17 ); side of pronotum comparatively slender ( figure 18 ); mesopleuron sparsely punctate and antero-dorsally rugose; metapleuron mainly punctate; mesoscutum punctulate, setose, with short groove medio-posteriorly; axillar anterolateral lobes comparatively small and robust ( figure 20 ); scutellum sparsely punctulate; propodeum completely rather coarsely and densely reticulaterugose, lateral horns of propodeum 0.8 times as long as first metasomal tergite.

Wings. Fore wing: r 0.6 times as long as 3-SR; SR1 just more than one-third as long as 2-SR; m-cu 4 times as long as 2-SRzM; 1-CU1 just shorter than cu- a and less than one-fifth as long as 2-CU1. Hind wing: cu-a nearly straight; subbasal cell largely setose; MzCu a little shorter than 1-M and about 3 times as long as 1r-m.

Legs. Length of hind femur, tibia and basitarsus 6.0, 10.2 and 10.2 times their width, respectively; hind tibial spurs 0.20 and 0.25 times as long as basitarsus.

Metasoma. First tergite 1.2 times as long as broad apically, latero-basally rather widely protruding, its surface very coarsely longitudinally rugose, intermingled with some punctures, with strong median carina and dorsal carinae complete and remaining separated; second tergite with small medio-basal area and complete median carina continuing up to 0.7 of third tergite; second to fourth tergites coarsely longitudinally rugose, also (especially laterally) with punctures; fifth tergite densely and coarsely punctate; length of ovipositor sheath 0.13 times as long as fore wing.

Colour. Yellowish brown; palpi, basal fifth of hind tibia and of basitarsus, third to fourth fore tarsal segments, second to fourth segments of mid and hind legs ivory; spines of propodeum, scape, pedicel, humeral plate, pronotum except posteriorly, mandible, fore and middle coxae and trochanters, and metasoma ventrally, pale yellowish; third to seventh basal antennal segments brownish yellow; 25th to 40th antennal segments ivory or whitish, and remainder of antenna dark brown; head (but clypeus ventrally somewhat brownish), pronotal side dorso-posteriorly, mesopleuron antero-dorsally and mesoscutum black; streak on outer side of scape and pedicel, tegulum, ovipositor sheath, apex of hind femur, remainder of hind tibia and of tarsi, pterostigma and veins dark brown; wing membrane slightly infuscate.

Material examined HOLOTYPE: female, Thailand, Ngao, Lampang, 23 October 1986, K. Maetô (RMNH).

Note Named after its collector and well-known specialist of Braconidae, Dr Kaoru Maetô.

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).