Utetes longicarinatus Li & van Achterberg

Li, Xi-Ying, Achterberg, Cornelis van & Tan, Ji-Cai, 2013, Revision of the subfamily Opiinae (Hymenoptera, Braconidae) from Hunan (China), including thirty-six new species and two new genera, ZooKeys 268, pp. 1-186 : 117-118

Utetes longicarinatus Li & van Achterberg sp. n. Figs 374-383

Type material.

Holotype, ♂ (ZUH), "S. China: Hunan, Shanyang, Chengbu, Nan Mts., 16.VII.1985, Fu-Xing Li, No. 310".

Diagnosis.

Mandible triangular, normal (Fig. 380); ventral margin of clypeus truncate and thick; pronope slit-shaped and deep (Fig. 381); medio-posterior depression of mesoscutum elliptical, large and deep (Fig. 376); precoxal sulcus largely smooth; propodeum with complete medio-longitudinal carina (Fig. 376); vein m-cu of fore wing subinterstitial (Fig. 375); inner side of hind tibia with oblique carinula baso-laterally (Fig. 378).

Description.

Holotype, ♂, length of body 3.6 mm, of fore wing 3.8 mm.

Head. Antenna with 35 segments and 0.9 times as long as fore wing; length of third segment 1.3 times fourth segment, length of third, fourth and penultimate segments 2.5, 2.1and 1.5 times their width, respectively (Fig. 382); length of maxillary palp 0.7 times height of head; labial palp segments short; occipital carina moderately close to hypostomal carina and dorsally absent; hypostomal carina wide; length of eye in dorsal view 1.3 times temple; frons depressed behind antennal sockets and glabrous, smooth, medially convex (Fig. 381); face smooth, medially broadly elevated; width of clypeus 3.0 times its maximum height and 0.6 times width of face, clypeus evenly convex, sparsely punctate and its ventral margin truncate and thick (Fig. 380); hypoclypeal depression medium-sized (Fig. 379); malar suture obsolescent; mandible slightly convex (Fig. 380).

Mesosoma. Length of mesosoma 1.2 times its height; pronope slit-shaped and deep (Fig. 381); pronotal side smooth (Fig. 374); epicnemial area more or less crenulate dorsally; precoxal sulcus largely smooth; rest of mesopleuron smooth; pleural sulcus smooth; notauli absent on disc, except for a short smooth part anteriorly (Fig. 376); mesoscutum glabrous; medio-posterior depression of mesoscutum elliptical, large and deep (Fig. 376); scutellar sulcus moderately crenulate; scutellum smooth and evenly convex; propodeum with complete medio-longitudinal carina, surface of propodeum largely reticulate-rugose (Fig. 377).

Wings. Fore wing (Fig. 375): pterostigma triangular; 1-R1 reaching wing apex and 1.3 times as long as pterostigma; r:3-SR:SR1 = 11:53:100; 2-SR:3-SR:r-m = 40:53:20; r widened; 1-M weakly curved; 1-SR+M sinuate; SR1 nearly straight; m-cu subintersti tial; cu-a postfurcal and 1-CU1 widened; first subdiscal cell closed, CU1b short; apical quarter of M+CU1 sclerotized. Hind wing (Fig. 375): M+CU:1-M:1r-m= 47:40:33; cu-a straight; m-cu absent.

Legs. Length of femur, tibia and basitarsus of hind leg 2.8, 8.0 and 5.6 times as long as wide, respectively (Fig. 383); setae of hind femur and tibia moderately long; inner side of hind tibia with medium-sized carinula baso-laterally (Fig. 378).

Metasoma. Length of first tergite 0.8 times its apical width, its surface evenly convex medially and with longitudinal carinae and dorsal carinae separated from each other and reaching apex of tergite (Fig. 377); second and following tergites smooth.

Colour. Yellowish brown; apex of mandible, antenna, pleural sulcus (and its surroundings) and propodeum dark brown; basal half of first tergite, tarsus, pterostigma and veins brown; wing membrane subhyaline.

Molecular data. None.

Distribution.

*China (Hunan).

Biology.

Unknown.

Etymology.

Name derived from “longus” (Latin for “long”) and “carina” (Latin for "keel, ridge") because of the long carina of the hind tibia.

Notes.

Runs in the key by Chen and Weng (2005) with difficulty to Areotetes laevigatus (Weng & Chen, 2005) comb. n., but Utetes longicarinatus has the ventral margin of the clypeus thick (thin in Areotetes laevigatus ), the propodeum densely reticulate-rugose (mainly areolate), the second metasomal tergite smooth (finely striate) and pronope large and slit-shaped (large elliptical).