Phaedrotoma acuticlypeata 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: 72-74

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Phaedrotoma acuticlypeata Li & van Achterberg

sp. n.

Phaedrotoma acuticlypeata Li & van Achterberg   ZBK   sp. n. Figs 196-204

Type material.

Holotype, ♀ (ZUH), "S. China: Hunan, nr Zhangjiajie, Badagong Mts, Longtanping, 4-5.VI.2009, 550 m, Xi-Ying Li, RMNH’09”. Paratypes (RMNH): 1 ♀, "S. China: Hunan, Changsha, garden Hunan Agr. Univ., 80 m, 31.V.2009, Xi-Ying Li, RMNH’09”; 1 ♂, "S. China: Hunan, nr Suining, Huangsang N. R., Shaoyang, 12-13.VI.2009, 1000 m, Xi-Ying Li, RMNH’09”; 1 ♀, "S. China: Hunan, nr Chengbu, Nan Mt., Shaoyang, 1500 m, 10-11.VI.2009, Xi-Ying Li, RMNH’09”.


Length of mesosoma 1.2 times its height; antenna of female 1.5-1.7 times as long as fore wing (male: 1.5-1.6 times); length of eye in dorsal view about 2.8 times temple; clypeus convex medially (Fig. 202); propodeum largely coarsely rugose except anteriorly (Fig. 199); pronotal side and mesopleuron superficially granulate; precoxal sulcus wide and comparatively shallow, densely finely sculptured (Fig. 196); hind tarsus slender and pale yellowish as femur (Fig. 200); vein SR1 of fore wing 2.9-3.4 times as long as vein 3-SR (Fig. 197).


Holotype, ♀, length of body 1.6 mm, of fore wing 2.0 mm.

Head. Antenna with 26 segments and 1.6 times as long as fore wing; length of third segment 1.1 times fourth segment, length of third, fourth and penultimate seg ments 3.7, 3.5, and 2.5 times their width, respectively (Fig. 201); length of maxillary palp 0.9 times height of head; labial palp segments rather moniliform; occipital carina distinctly removed from hypostomal carina and dorsally absent; hypostomal carina medium-sized; length of eye in dorsal view 2.8 times temple; frons glabrous, very superficially granulate and strongly shiny and with pit medially, slightly convex laterally and in front of anterior ocellus; face largely smooth but laterally superficially granulate, medially slightly elevated (Fig. 202); width of clypeus 2.5 times its maximum height and 0.5 times width of face; clypeus weakly convex, ventrally protruding forwards, smooth and its ventral margin sharp and straight (Fig. 202); hypoclypeal depression medium-sized (Fig. 202); malar suture partly narrowly impressed (Fig. 203); mandible gradually widened basally, with narrow and non-protruding ventral carina (Fig. 203).

Mesosoma. Length of mesosoma 1.2 times its height; dorsal pronope rather large and round; pronotal side superficially granulate, oblique groove crenulate anteriorly and posterior groove largely absent (Fig. 196); epicnemial area superficially granulate dorsally; precoxal sulcus only medially impressed, wide and comparatively shallow, densely finely sculptured (Fig. 196); remainder of mesopleuron and pleural sulcus smooth; anterior groove of metapleuron crenulate; notauli absent on disc, only anteriorly indicated by shallow depressions; mesoscutum glabrous except for a few setae along imaginary notaulic courses (Fig. 198); medio-posterior depression of mesoscutum absent; lateral carina of mesoscutum present; scutellar sulcus moderately crenulate; scutellum smooth or nearly so and flattened; anterior surface of propodeum short and largely smooth, remainder coarsely rugose, without carinae (Fig. 199).

Wings. Fore wing (Fig. 197): pterostigma elliptical, narrowed apically; 1-R1 reaching wing apex and 1.4 times as long as pterostigma; r:3-SR:SR1 = 2:22:64; r slender; 2-SR:3-SR:r-m = 12:22:6; 1-M straight; SR1 slightly curved; m-cu distinctly postfurcal; cu-a just postfurcal and 1-CU1 widened; first subdiscal cell closed, CU1b short. Hind wing (Fig. 197): 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 5.2, 9.2 and 5.5 times as long as wide, respectively; hind femur with long setae and of tibia medium-sized (Fig. 200).

Metasoma. Length of first tergite 1.1 times its apical width, its surface weakly and gradually convex and largely finely and densely rugulose, dorsal carinae developed in its anterior 0.6, straight (Fig. 199); second and third tergites superficially granulate, 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; apex of hypopygium rather acute (Figs 196, 204).

Colour. Brownish-yellow; palpi, humeral plate and hind trochantellus ivory; legs pale yellowish (including hind tibial apex and hind tarsus, but telotarsi infuscate); antenna (but scapus yellowish), tegulum, head dorsally (but frons yellowish latero-posteriorly), mesoscutum, scutellum and metanotum, apex of third tergite and following tergites, ovipositor sheath, pterostigma and veins dark brown; wing membrane subhyaline.

Molecular data. None.

Variation. Length of body 1.6-1.9 mm, of fore wing 1.9-2.1 mm; antenna of female with 26 (1), 27 (1) or 28 (1) segments, of male with 31 (1) segments; oblique groove of pronotum distinctly or superficially crenulate.


*China (Hunan).




Name derived from “acutus” (Latin for “sharp”) and clypeus, because of the acute ventral margin of the clypeus.


The new species runs in the key by Chen and Weng (2005) to Phaedrotoma improcera   (Weng & Chen, 2005) comb. n. Phaedrotoma acuticlypeata   differs by having the anterior surface of the propodeum largely smooth (rugose in Phaedrotoma improcera   ), vein 3-SR of fore wing 1.8 times vein 2-SR (1.3 times) and length of eye in dorsal view 2.8 times temple (1.7 times).