Rhogadopsis Brethes , 1913

Chen, Meng, van Achterberg, Cornelis, Tan, Jiang-Li, Tan, Qing-qing & Chen, Xue-Xin, 2016, Four new species of Rhogadopsis Brethes from NW China (Hymenoptera, Braconidae, Opiinae), Journal of Hymenoptera Research 52, pp. 37-60 : 38-39

Rhogadopsis Brethes, 1913

Figs 1 , 2-10 , 11 , 12-22 , 23 , 24-32 , 33 , 34-42 , 43 , 44-52 , 53 , 54-62

Rhogadopsis Brèthes, 1913: 44; Shenefelt 1975: 1212; Wharton 1987: 66 (synonymy with subgenus Lissosema ); Li et al. 2013: 147 (as valid genus). Type species (by monotypy): Rhogadopsis miniacea Brèthes, 1913 [examined].

Lissosema Fischer, 1972: 359. Type species (by original designation): Opius parvungula Thomson, 1895 [examined].

Diagnosis.

Propodeum with a medio-longitudinal carina anteriorly (Figs 4 , 14 , 26 , 36 ); vein m-cu of fore wing gradually merging into 2-CU1 and linear with vein 2-M, rarely angulate; vein 1r-m of hind wing less oblique and 0.7-1.0 times as long as vein 1-M; mandible triangular and with narrow ventral carina; occipital carina remaining separate from hypostomal carina ventrally; precoxal sulcus usually present and crenulate; anterior groove of metapleuron nearly always crenulate; veins CU1b and 1-SR of fore wing medium-sized; dorsope absent.

Biology.

Parasitoids of Agromyzidae .

Key to species of Rhogadopsis from NW China

1	Medio-posterior depression of mesoscutum absent (Figs 26 , 36 ); ventral half of posterior groove of pronotal side sometimes smooth (Fig. 35 )	2
-	Medio-posterior depression of mesoscutum present (Figs 4 , 14 , 46 ), but sometimes only point-like impressed; ventral half of posterior groove of pronotal side crenulate (Figs 13 , 45 )	3
2	Vein r of fore wing long and slender, at least 5 times longer than wide medially (Fig. 24 ); pronotum coarsely and densely crenulate posteriorly (Fig. 25 ); first tergite without long median carina (Fig. 27 ); [face strongly punctate and tricoloured laterally; clypeus about twice as wide as high hardly protruding ventrally; first metasomal tergite parallel-sided; vein m-cu rather angled with 2-CU1]	R. longivena sp. n.
-	Vein r of fore wing short and at most about twice as long as wide (Fig. 34 ); posterior groove of pronotum smooth or finely and sparsely crenulate (Fig. 35 ); first tergite with long median carina (Fig. 37 ); [propodeum largely smooth; setose part of ovipositor sheath about 0.7 times length of first tergite; clypeus about twice as wide as high, thin apically and evenly protruding; head brownish yellow anteriorly; posterior groove of pronotal side at least dorsally smooth]	R. mediocarinata (Fischer, 1963)
3	Mesoscutum of ♀ brownish yellow (Figs 55-56 ), of ♂ with brownish yellow or brown stripes; vein r of fore wing slenderer and about 3 times longer than its medial width (Fig. 54 ); area in front of notauli rugose (Fig. 55 ); metasoma of ♀ with yellow bands (Fig. 53 ; of ♂ mainly dark brown); vein 1-SR of fore wing 0.4-0.5 times as long as vein 1-M (Fig. 54 ); vein 3-SR 1.5-1.6 times as long as vein 2-SR; first metasomal tergite distinctly widened apically (Fig. 57 ); [apical half of parameres yellow; setose part of ovipositor sheath 0.6-0.7 times hind tibia and about 2.5 times as long as hind basitarsus (entire exserted sheath about 4 times (= equal to hind tibia)); vein 1r-m of hind wing 0.8-1.0 times as long as vein 1-M; ovipositor sheath lamelliform basally and glabrous]	R. pratellae (Weng & Chen, 2005)
-	Mesoscutum black or dark chestnut brown (Figs 4 , 14 , 46 ); vein r of fore wing wider and about twice as long as its medial width or less (Figs 12 , 44 ); area in front of notauli smooth or punctate (Figs 13 , 45 ); metasoma of ♀ without distinct yellow bands (Figs 11 , 43 ); vein 1-SR of fore wing 0.3-0.4 times as long as vein 1-M (Figs 2 , 12 , 44 ); [apical half of parameres dark brown, brown or yellowish; length of eye 3.2-3.3 times temple in dorsal view]	4
4	Medially second and third tergites longitudinally rugulose-striate or aciculate (Fig. 5 ); vein r of fore wing about twice as long as wide (Fig. 2 ); first metasomal tergite distinctly widened apically (Fig. 5 )	R. aciculifera sp. n.
-	Medially second and third tergites smooth (Figs 15 , 47 ); vein r of fore wing about as long as wide (Figs 12 , 44 ); first tergite less widened apically (Figs 15 , 47 ); [vein 3-SR 1.7-2.0 times as long as vein 2-SR]	5
5	Setose part of ovipositor sheath 0.2 times hind tibia and slightly shorter than hind basitarsus (Fig. 21 ); third and fourth antennal segments of ♀ rather slender (Fig. 16 ); first metasomal tergite elongate, 1.7-1.9 times longer than its apical width (Fig. 15 ); hind femur slenderer, 4.5-4.7 times as long as wide (Fig. 21 ); vein m-cu of fore wing gradually merging into vein 2-CU1 (Fig. 12 )	R. cracentata sp. n.
-	Setose part of ovipositor sheath 0.5-0.7 times hind tibia and about twice as long as hind basitarsus (Fig. 44 ); third and fourth antennal segments of ♀ robust (Fig. 52 ); first metasomal tergite rather stout, 1.2-1.4 times longer than its apical width (Fig. 47 ); hind femur wider, about 3.7 times as long as wide (Fig. 50 ); vein m-cu of fore wing rather angled with vein 2-CU1	R. moniliata sp. n.

Figures

Figure 1. Rhogadopsis aciculifera sp. n., female, holotype, habitus lateral.

Figure 11. Rhogadopsis cracentata sp. n., female, holotype, habitus lateral.

Figures 23. Rhogadopsis longivena sp. n., female, holotype.

Figure 33. Rhogadopsis mediocarinata (Fischer), female, China, Liuba, habitus lateral.

Figure 43. Rhogadopsis moniliata sp. n., female, holotype, habitus lateral.

Figure 53. Rhogadopsis pratellae (Weng & Chen), female, China, Liupan Mt., habitus lateral.

Figures 2 - 10. Rhogadopsis aciculifera sp. n., female, holotype. 2 wings 3 mesosoma lateral 4 mesosoma dorsal 5 first-third metasomal tergites dorsal 6 head anterior 7 head dorsal 8 hind leg 9 base of antenna 10 head lateral.

Figures 12 - 22. Rhogadopsis cracentata sp. n., female, holotype. 12 wings 13 mesosoma lateral 14 mesosoma dorsal 15 first-third metasomal tergites dorsal 16 base of antenna 17 antenna 18 apex of antenna 19 head anterior 20 head dorsal 21 hind leg 22 mandible lateral.

Figures 24 - 32. Rhogadopsis longivena sp. n., female, holotype. 24 wings 25 mesosoma lateral 26 mesosoma dorsal 27 first-fourth metasomal tergites dorsal 28 base of antenna 29 antenna 30 head anterior 31 head dorsal 32 hind leg.

Figures 34 - 42. Rhogadopsis mediocarinata (Fischer), female, China, Liuba. 34 wings 35 mesosoma lateral 36 mesosoma dorsal 37 first-third metasomal tergites dorsal 38 mandible lateral 39 head anterior 40 head dorsal 41 hind leg 42 antenna.

Figures 44 - 52. Rhogadopsis moniliata sp. n., female, holotype. 44 wings 45 mesosoma lateral 46 mesosoma dorsal 47 propodeum and first-third metasomal tergites dorsal 48 head anterior 49 head dorsal 50 hind leg 10 head lateral 52 base of antenna.

Figures 54 - 62. Rhogadopsis pratellae (Weng & Chen), female, China, Liupan Mt. 54 wings 55 mesosoma lateral 56 mesosoma dorsal 57 propodeum and first-third metasomal tergites dorsal 58 base of antenna 59 head anterior 60 head dorsal 61 hind leg 62 antenna.