Phaedrotoma angiclypeata 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 : 74-76

Phaedrotoma angiclypeata Li & van Achterberg sp. n. Figs 205-214

Type material.

Holotype, ♀ (ZUH), "S. China: Hunan, nr Zhangjiajie, Badagong Mts, Longtanping, 4-5.VI.2009, 550 m, Xi-Ying Li, RMNH’09”. Paratype (RMNH): 1 ♂, "S. China: Hunan, nr Suining, Huangsang N. R., Shaoyang, 12-13.VI.2009, 1000 m, Xi-Ying Li, RMNH’09”.

Diagnosis.

Hypopygium of ♀ truncate apically and 0.2 times as long as metasoma (Fig. 213); clypeus normal ventrally and semicircular (Fig. 212); clypeus 0.6 times as wide as face or less, protruding medio-ventrally and truncate laterally (Fig. 211); occipital carina close to hypostomal carina; malar suture entirely absent; medio-posterior depression of mesoscutum absent; scutellar sulcus at most moderately crenulate; scutellum flat or nearly so; posterior groove of propleuron smooth or absent; pronope round and rather large (Fig. 214); lateral carina of mesoscutum largely absent; mesosoma largely black; precoxal sulcus finely crenulate or smooth (Fig. 205); propodeum smooth and shiny; vein m-cu of fore wing slightly postfurcal (Fig. 206); vein CU1b shorter that vein 3-CU1 (Fig. 206); hind femur about 5 times as long as wide; second and third metasomal tergites smooth; head and mesosternum largely dark brown; mandible gradually widened basally and narrow apically (Fig. 212); hind tarsus pale yellowish.

Description.

Holotype, ♀, length of body 1.4 mm, of fore wing 1.7 mm.

Head. Antenna with 23 segments and 1.3 times as long as fore wing; length of third segment 1.1 times fourth segment, length of third, fourth and penultimate segments 4.3, 3.8, and 3.0 times their width, respectively (Fig. 210); length of maxillary palp 0.9 times height of head; labial palp segments rather short; occipital carina close to hypostomal carina and dorsally absent; hypostomal carina narrow; length of eye in dorsal view 2.6 times temple; frons glabrous, smooth, evenly flattened; face smooth, medially weakly elevated; width of clypeus 3.1 times its maximum height and 0.55 times width of face; clypeus convex, protruding forwards, superficially punctate dorsally and its ventral margin thin and slightly concave (Fig. 211); hypoclypeal depression rather large (Fig. 211); malar suture entirely absent; mandible gradually widened basally, with short and non-protruding ventral carina (Fig. 212).

Mesosoma. Length of mesosoma 1.1 times its height; dorsal pronope distinct, rather large, round (Fig. 214); pronotal side smooth, but slightly crenulate in oblique groove (Fig. 205); epicnemial area smooth dorsally; precoxal sulcus only medially impressed, smooth as rest of mesopleuron (Fig. 205); pleural sulcus smooth as anterior groove of metapleuron; notauli absent on disc, only anteriorly indicated by shallow depressions (Fig. 207); meso-scutum glabrous except for a few setae; medio-posterior depression of mesoscutum absent; lateral carina of mesoscutum largely absent; scutellar sulcus moderately crenulate; scutellum smooth and flattened; surface of propodeum entirely smooth and shiny (Fig. 207).

Wings. Fore wing (Fig. 206): pterostigma elliptical, narrowed apically; 1-R1 reaching wing apex and 1.3 times as long as pterostigma; r:3-SR:SR1 = 2:18:53; 2-SR:3-SR:r-m = 11:18:6; r slender; 1-M straight; SR1 slightly sinuate; m-cu slightly postfurcal; cu-a postfurcal and 1-CU1 widened; first subdiscal cell closed, CU1b rather short. Hind wing (Fig. 206): M+CU:1-M:1r-m = 10:13:5; cu-a straight; m-cu absent.

Legs. Length of femur, tibia and basitarsus of hind leg 5.0, 8.5 and 4.5 times as long as wide, respectively; hind femur with long setae and of tibia medium-sized (Fig. 209).

Metasoma. Length of first tergite 1.2 times its apical width, its surface distinctly convex but flattened medially and largely finely rugose or rugulose, dorsal carinae developed in its anterior 0.6, curved (Fig. 208); second and following tergites largely smooth, but with some superficial granulation, division of tergites slightly elevated; length of ventrally visible setose part of ovipositor sheath 0.06 times fore wing and 0.2 times hind tibia (Figs 205, 213).

Colour. Black; palpi, mandible, clypeus, malar space, second tergite, metasoma ventrally and legs pale yellowish; first tergite yellowish-brown; antenna (but scapus, laterally pedicellus and third segment yellowish), face, temple, mesopleuron largely, ovipositor sheath, remainder of metasoma, pterostigma and veins dark brown; wing membrane subhyaline.

Molecular data. None.

Variation. Paratype has length of the fore wing 2.0 mm, the antenna with 27 segments, precoxal sulcus finely crenulate and the head largely brownish-yellow.

Distribution.

*China (Hunan).

Biology.

Unknown.

Etymology.

Name derived from “angustus” (Latin for “narrow”) and clypeus, because of the comparatively narrow clypeus.

Notes.

The new species runs in the key by Chen and Weng (2005) to Opius clusilis Weng & Chen, 2005, if the second tergite is considered to be smooth. Phaedrotoma angiclypeata differs by having the head roundly narrowed behind the eyes in dorsal view (directly narrowed in Opius clusilis ), the mandible hardly widened basally (mandible distinctly widened), length of the first tergite 1.2 times its apical width (1.4 times) and length of the third antennal segment 4.5 times its width (2.6 times). The new species is close to Phaedrotoma postuma (Chen & Weng, 2005) comb. n., but Phaedrotoma postuma has the head (except usually dorsally) and mesosoma laterally yellowish-brown or brown, the third antennal segment comparatively slender, the fourth antennal segment largely yellowish-brown, the malar space slightly longer and the ovipositor sheath narrow.