The genus Testudobracon in eastern China and the description of three new species ( Hymenoptera : Braconidae : Braconinae )

The species of Testudobracon Quicke from eastern China are revised with four species recognized, including three new species: (Testudobracon flavus sp. n., Testudobracon guangxinensis sp. n. and Testudobracon grandiventris sp. n.). The new species are fully described and illustrated. A key to species of this genus is also provided. The types and other specimens are deposited in the Collection ofParasitic Hymenoptera at the Zhejiang University, Hangzhou, China.

The species of the genus Testudobracon in China are revised in this paper, and four species are reported.Among them, three species are identified as new to sci ence, i.e., T. flavus sp.n., T. guangxinensis sp.n. and T. grandiventris sp.n.The types and other specimens are deposited in the Collection of Parasitic Hymenoptera at Zhejiang University, Hangzhou, China.
For the identification of this genus see Quicke (1987), and for the morphological terminology used in this paper see Achterberg (1979) and Quicke (1987).

Description
Female.Length of body 2.45 mm, of fore wing 2.65 mm and of ovipositor sheath 1.85 mm.
Metasoma.Tergites with sparse and short setae.Meta soma more elongate than in the other species.Length of first metasomal tergite 0.7 times its apical width.First ter gite with a posterior carina area (Fig. 6).2nd-3rd meta somal tergites 2.5 times and 2.4 times as wide as their maximum median length, respectively, with uniformly foveate rugae and a pair of sub-parallel sub-lateral grooves medially on second metasomal tergite (Fig. 6); 2nd-3rd tergites combined about 0.6 times length of meta soma.4th-6th metasomal tergites with weakly foveate rugae; 4th-5th metasomal tergites with postero-lateral rounded protuberances in lateral view (Fig. 7).6th meta somal tergite with small postero-lateral angular protuber ances in lateral view (Fig. 7), and a deep semicircular median emargination, but not touching the basal sulcus of 6th metasomal tergite, and about 0.5 times the maximum length of 6th tergite medially (Fig. 8).Length of ovi- positor 1.2 times that of metasoma, and about 0.7 times as long as forewing.Setosity of ovipositor sheaths sparse and long.
Body entirely uniformly pale yellow or yellow except for dark brown antennae, veins, and ovipositor sheath, and black pterostigma and telotarsus.
Etymology.From "flavus", Latin for yellow, referring to the body colour.
Description Female.Length of body 3.10 mm, of fore wing 3.15 mm and length of ovipositor sheath 2.25 mm.
Horizontal length of eye 2.6 times that of temple behind eye (Fig. 11).
Testudobracongrandiventris sp.n.Diagnosis.This species is closely related to T. pleuralis, but can be separated from the latter as the middle lobe of mesoscutum is mainly glabrous; length of vein 1-SR of fore wing about 0.4 times vein 1-M (Fig. 24); 2nd-3rd metasomal tergites dark brown medially (Fig. 25); the metasomal tergites relatively larger and wider, and 3rd metasomal tergite at least 3.3 times as wide as its median length (Fig. 25); propodeum with slightly depressed triangular pit medio-anteriorly (Fig. 23); maximum depth of median emargination of 6th meta somal tergite about 0.4 times the length of 6th tergite medially (Fig. 26).

Description
Female.Length of body 3.20 mm, of fore wing 3.35 mm and of ovipositor sheath 2.40 mm.
Metasoma.Metasoma distinctly larger and wider than that of the others species, and with dense fine setae.Length of first metasomal tergite 0.9 times its apical width, with setae on lateral margin (Fig. 25).2nd meta somal tergite 3.1 times as wide as its medial length; 2nd-3rd metasomal tergites coarsely areolate-rugose, with a pair of sub-parallel sub-lateral grooves.3rd metasomal tergite 3.3 times as wide as its medial length (Fig. 25); 2nd-3rd metasomal tergites combined about 0.67 times length of metasoma.4th-5th tergites with rounded lobe like postero-lateral protuberances in lateral view (Fig. 27).Posterior margin of 6th tergite with a deep and dis tinct median emargination, and the maximum depth about 0.4 times the length of 6th tergite medially (Fig. 26).6th metasomal tergite with sharp angular postero-lateral pro tuberances in lateral view (Fig. 27).Length of ovipositor sheath approximately 1.1 times that of metasoma, and about 0.7 times length of forewing.Setosity of ovipositor sheath dense and evenly short.
Etymology.From "grandis" and "venter", Latin for large abdomen, referring to the shape of the metasoma.