Protodacnusa magnidentis, Mao, Juan, He, Jun-Hua & Chen, Xue-Xin, 2015

Mao, Juan, He, Jun-Hua & Chen, Xue-Xin, 2015, The discovery of the genus Protodacnusa Griffiths, 1964 (Hymenoptera: Braconidae, Alysiinae) in China, with descriptions of six new species, Zootaxa 3990 (3), pp. 355-368 : 363-366

Protodacnusa magnidentis sp. nov.

( Fig. 5 )

Holotype. ♂, China, Fujian Prov., Chongan, Sangang, 14.XII.1989, Wang Jiashe, No. 20008147 ( ZJUH). Description. Male. Body large, length 4.0 mm; fore wing length 3.8 mm.

Head. Antenna distinctly longer than body, 35-segmented. First flagellar segment 3.4 × as long as its apical width, 1.5 × as long as second segment. Penultimate segment 1.5 × as long as wide. Head width 2.0 × its median length, 1.5 × as broad as mesoscutum between tegulae. Vertex smooth, with sparse setae. Frons weakly concave, smooth. Temple smooth, with sparse setae, slightly swollen behind eyes in dorsal view ( Fig. 5 B). Transverse diameter of eye 0.9 × as long as temple in lateral view. Ocelli small, in triangle with base equal to its sides. POL: OD: OOL=3.3: 1.0: 1.5. Eye glabrous, 1.7 × as high as broad. Malar space long, 0.4 × basal width of mandible. Face smooth, longitudinal carina almost absent. Occipital carina complete absent. Mandible large, expanded with three distinctly developed teeth, apical width 1.5 × its basal width, upper tooth strong, second tooth pointed, third tooth lamelliform ( Fig. 5 E). Palpi longer than height of head.

Mesosoma. 1.6 × as long as high in lateral view. Pronope small. Sides of pronotum smooth. Mesoscutum mostly smooth, with punctures and sparse setae. Notauli distinct, shallow posteriorly, extending before anterior half of the mesoscutum ( Fig. 5 H). Prescutellar depression deep, with three longitudinal carinae. Scutellum mostly smooth. Mesopleuron punctate, but smooth in median part. Precoxal sulcus broad, crenulate ( Fig. 5 F). Metanotum with a median tooth. Metapleuron with sparse setae. Propodeum coarsely rugose-areolate, with a short median carina and lateral tubercles.

Wings. Fore wing 2.1 × as long as its maximum width. Pterostigma strongly broad, 4.0 × as long as wide. Vein r arising from basal third of pterostigma, its length much shorter than width of pterostigma. First discal cell of fore wing wide, 1.6 × wider than high. Vein 1-R1 long, 0.7 × as long as pterostigma, marginal cell broad, ending near the tip of wing. Vein SR1+3-SR evenly curved as in Fig. 5 D. Vein m-cu antefurcal. Subdiscal cell distally closed, vein CU1b developed ( Fig. 5 D).

Legs. Hind coxa smooth. Hind femur 4.6 × as long as its maximum width. Hind tibia slightly longer than its tarsus in length. Hind basitarsus slightly longer than tarsomeres 2–3 combined.

Metasoma. First tergite longitudinally rugulose and with sparse setae, dorsope absent, behind the spiracles subparallel-sided, its length 1.3 × as long as its apical width ( Fig. 5 G). Second and third tergites fused, smooth, unevenly pubescent. Further tergites polished, with two rows of setae along their hind margin respectively.

Colour. Head and mesosoma black. Scape and pedicel dark yellow, flagellum dark brown. Mandible brownish yellow; palpi and tegula yellow. Metasoma reddish brown except the black first tergite. Legs yellow, apical of the tibiae and tarsi brown. Wings hyaline, pterostigma and veins opaque brownish.

Male. Unknown.

Host. Unknown.

Diagnosis. This new species is similar to P. jezoensis Maeto , but differs in first discal cell of fore wing wide, 1.6 × wider than high; notauli extending to anterior half of mesoscutum; first tergite 1.3 × longer than its apical wide; second and third tergites unevenly pubescent, and following tergites with two row of setae along their hind margin respectively.

Distribution. China (Fujian)

Etymology. The name refers to the huge mandible.

Figures

FIGURE 5. Protodacnusa magnidentis sp. nov., ♂, holotype. A. habitus, lateral aspect; B. head, dorsal aspect; C. head, frontal aspect; D. fore wing; E. mandible, lateral aspect; F. mesosoma, lateral aspect; G. metasoma, dorsal aspect; H. mesonotum, dorsal aspect. Scale bar = 5 mm.