(Ganychorus) Haliday 1835
Creators: name: Lu, Qian-Yu
name: Chai, Hong-Fei
name: Achterberg, Cornelis Van
name: Tang, Pu
name: Chen, Xue-Xin
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia

description: Key to Chinese species of subgenus Ganychorus Haliday
1 Antennomeres of ♀ 15; posterior half of metasoma of ♀ depressed; base of second metasomal tergite micro-striate.......................................................................... B. (G.) parastrictus van Achterberg, 1988
- Antennomeres of ♀ 18–22; posterior half of metasoma of ♀ more or less compressed; base of second tergite smooth (except in B. (G.) longitergitus, B. (G.) castaneus and B. (G.) tricolor).................................................... 2
2 Propodeum with narrow medial area posteriorly (Fig. 20G); first metasomal tergite parallel-sided; precoxal sulcus narrow and with very few short crenulae; length of eye in dorsal view 1.4–1.9 × length of temple; middle tarsal claws of ♀ simple, without blackish bristles; first discal cell of fore wing truncate anteriorly................................................ 3
- Propodeum with medio-longitudinal carina and no medial area (Fig. 26F); first metasomal tergite more or less widened apically; precoxal sulcus either narrow and with more crenulae or precoxal sulcus wide and extensively sculptured, more or less entirely impressed; length of eye in dorsal view often less than 1.4 × length of temple; middle tarsal claws of ♀ variable, if simple then first discal cell acute anteriorly (but intermediate in B. (G.) shennongjiaensis)..................................... 5
3 Antennomeres of ♀ 21; face partly punctate; length of eye in dorsal view about 1.4 × length of temple; length of first metasomal tergite 2.7 × its apical width (Fig. 26F)............................................... B. (G.) scutellatus sp. nov.
- Antennomeres of ♀ 22; face smooth (Fig. 8B); length of eye in dorsal view about 1.9 × length of temple; length of first metasomal tergite 2.3–3.3 × its apical width................................................................ 4
4 Length of first metasomal tergite about 2.3 × its apical width; notauli comparatively wide; most antennomeres dark brown; hind coxa with some rugae dorsally; propodeal tubercles absent; base of hind tibia narrowly dark brown......................................................................................... B. (G.) comatus van Achterberg, 1988
- Length of first metasomal tergite about 3.3 × its apical width; notauli narrow; only one apical antennomere brown; hind coxa with a rugose carina; propodeal tubercles small; base of hind tibia yellow.................... B. (G.) comatoides sp. nov.
5 Hind coxa largely dark brown; antennomeres of ♀ 22; length of first metasomal tergite 2.8 × its apical width; longitudinal carina of anterior part of propodeum discontinued posteriorly (Fig. 32G); first discal cell of fore wing usually rather widely truncate (Fig. 32I); [precoxal sulcus wide and with long oblique striae]................. B. (G.) shennongjiaensis sp. nov.
- Hind coxa yellow; antennomeres of ♀ 18–21; length of first metasomal tergite 1.4–2.6 × its apical width (but sometimes up to 2.8 × in B. (G.) longitergitus); longitudinal carina of anterior part of propodeum continued posteriorly (Fig. 26F); first discal cell of fore wing comparatively narrowly truncate or acute..................................................... 6
6 Middle tarsal claws of ♀ simple, without dark bristles; antennomeres of ♀ 18–19 (but sometimes 20 in ♀ of B. (G.) fuscifemur and 21 in B. (G.) mellistigmus and precoxal sulcus only medially present); [length of first metasomal tergite 1.6–2.2 × longer than its apical width].................................................................................. 7
- Middle tarsal claws of ♀ with blackish bristles; antennomeres of ♀ 20–21 (sometimes 19 in ♀ of B. (G.) diversicornis); precoxal sulcus complete.............................................................................. 11
7 Antennomeres of ♀ 18; first discal cell of fore wing truncate anteriorly and parastigma medium-sized; precoxal sulcus wide and with long oblique striae (Fig. 42H)................................................ B. (G.) xueshanensis sp. nov.
- Antennomeres of ♀ 19–21; first discal cell of fore wing acute anteriorly and parastigma small; precoxal sulcus narrow and sometimes only medially impressed, with short crenulae; [antenna long bristly setose]............................... 8
8 Antenna of ♀ with 21 antennomeres; pterostigma light brown; precoxal sulcus only medially present; propodeal tubercles absent, but carinae somewhat protruding................................. B. (G.) mellistigmus van Achterberg, 1988
- Antenna of ♀ with 19–20 antennomeres; pterostigma brown; precoxal sulcus complete; small propodeal tubercles present.. 9
9 Propodeum without additional carina to lateral tubercle (Fig. 36F); fore claws simple, only bristly setose (Fig. 36J); antenna of ♀ no pale antennomeres; [antenna of ♀ with 19 antennomeres]........................... B. (G.) signiferoides sp. nov.
- Propodeum with an additional carina to small lateral tubercle (Figs 14G, 34F); fore claws with blackish or dark brown bristles (Fig. 34J); antenna of ♀ with 5–6 yellowish antennomeres contrasting with dark apical antennomeres................. 10
10 Apical half of hind femur and trochanter similarly yellowish; frons of ♀ sparsely setose anteriorly; posterior part of propodeum dorsally densely rugose; first metasomal tergite distinctly widened apically; tegulae dark brown; notauli comparatively wide...................................................................... B. (G.) signifer van Achterberg, 1988
- Apical half of hind femur much darker than trochanter; frons of ♀ densely setose anteriorly; posterior part of propodeum dorsally with some carinae (Fig. 14G); first metasomal tergite less widened apically; tegulae yellow; notauli narrow...................................................................................... B. (G.) fuscifemur sp. nov.
11 Length of body 3.6–4.4 mm; frons with striae; wings rather infuscated.......................................... 12
- Length of body 2.0– 3.3 mm; frons without striae; wings at most slightly infuscated................................ 13
12 First metasomal tergite robust and widened apically, length of tergite 1.8–2.0 × its apical width; second and third metasomal tergites dark reddish brown; notauli crenulate posteriorly; propodeum rugose; mesopleuron entirely with long striae............................................................................. B. (G.) kangauzi Belokobylskij, 1995
- First metasomal tergite slender and parallel-sided, length of tergite about 2.5 × its apical width; second and third metasomal segments whitish; notauli with longitudinal sculpture posteriorly; propodeum largely smooth; only precoxal sulcus with oblique striae.......................................................................... B. (G.) aurigineus sp. nov.
13 Length of first metasomal tergite 2.5–2.6 × its apical width and first tergite slender, slightly widened apically; antenna tricoloured, with subapical antennomeres pale yellow; if bicoloured (B. (G.) longitergitus) then subapical antennomeres yellowish brown and frons densely setose............................................................................... 14
- Length of first metasomal tergite 1.4–2.2 × its apical width and often more or less widened apically; antenna at most bicoloured, subapical antennomeres brown (but yellowish in B. (G.) tenuipes); [propodeum largely smooth between carinae, but with some rugae in B. (G.) isoruficornis].......................................................................... 17
14 Base of second metasomal tergite with short oblique sculpture laterally (Fig. 22G); frons densely setose (Fig. 22A); mesopleuron entirely covered with striae; antenna bicoloured, subapical antennomeres yellowish brown; [hind basitarsus 13.0 × longer than wide; eye in dorsal view 1.2–1.3 × longer than temple]................................. B. (G.) longitergitus sp. nov.
- Base of second metasomal tergite smooth; frons sparsely setose (Fig. 6A); mesopleuron often partly smooth (Fig. 12F); antenna tricoloured, subapical antennomeres pale yellow............................................................ 15
15 Length of eye in dorsal view 1.4 × length of temple; wings infuscated; hind leg brown (Fig. 6G).. B. (G.) castaneus sp. nov.
- Length of eye in dorsal view 0.9–1.1 × length of temple; wings hyaline; hind leg at most dark yellow.................. 16
16 Propodeum superficially rugose between carinae; precoxal sulcus with many long rugae; hind leg dark yellow; face yellowish brown, paler than remainder of head in lateral view........................................ B. (G.) tricolor sp. nov.
- Propodeum smooth and shiny between carinae; precoxal sulcus with few short rugae; hind leg yellow; both face and remainder of head in lateral view similarly reddish brown.......................................... B. (G.) ejuncidus sp. nov.
17 Length of first metasomal tergite 1.4–1.8 × its apical width; if 1.7–1.8 × then mesopleuron smooth above precoxal sulcus, wing membrane hyaline and frons moderately setose; propodeum with rugulae near carinae or finely reticulate.............. 18 Length of first metasomal tergite 1.7–2.1 × its apical width; if 1.7–1.8 × then mesopleuron rugose above precoxal sulcus, wing membrane more or less infuscated and frons sparsely setose; propodeum variable, often largely smooth between carinae; [scutellum smooth; antennomeres of ♀ 20, but 21 in B. (G.) mystrus]........................................... 20
18 Antennomeres comparatively short, penultimate antennomere of ♀ slightly longer than wide and moniliform (Fig. 10C); propodeum finely reticulate; scutellum smooth (Fig. 10D); first discal cell of fore wing acute anteriorly or nearly so; [body mainly black].............................................................. B. (G.) diversicornis (Nees, 1834)
- Antennomeres comparatively long, penultimate antennomere of ♀ about twice as long as wide and non-moniliform (Fig. 16C); propodeum posteriorly with some remote rugulae; scutellum more or less superficially rugose (Fig. 16F); first discal cell of fore wing truncate anteriorly (Fig. 16G)...................................................................... 19
19 Frons smooth except for few setae near eyes; first metasomal tergite distinctly widened posteriorly, robust (Fig. 16E); body mainly yellowish brown to brown.................................................. B. (G.) isoruficornis sp. nov.
- Frons more or less setose (except in front of anterior ocellus); first metasomal tergite less widened and slenderer; body mainly dark reddish brown to dark brown; [parastigma of ♀ medium-sized (larger in ♂) and first discal cell of fore wing narrowly truncate anteriorly; antenna of ♀ usually with 20 antennomeres; pterostigma at least distally infuscate..................................................................................... B. (G.) setosifrons van Achterberg, 1988
20 Hind femur largely darker than hind trochanter (Fig. 30F); first discal cell of fore wing acute anteriorly (Fig. 30I); [malar suture absent]............................................................................................. 21
- Hind femur similarly yellowish or brownish as hind trochanter (Fig. 2H); first discal cell of fore wing truncate anteriorly (Fig. 20F)............................................................................................... 22
21 Antenna of ♀ with 20 antennomeres; frons dark brown; length of first metasomal tergite 1.7–1.8 × its apical width; wings hyaline; notauli rather narrow..................................................... B. (G.) shanxiensis sp. nov.
- Antenna of ♀ with 21 antennomeres; frons brownish yellow; length of first metasomal tergite about 2.1 × its apical width; wings largely infuscated; notauli rather wide (Fig. 24E)..................................... B. (G.) mystrus sp. nov.
22 First metasomal tergite parallel-sided; 13 th –18 th antennomeres of ♀ pale yellowish; length of hind basitarsus about 7.5 × its width; [malar suture long and deep]........................................ B. (G.) tenuipes van Achterberg, 1988
- First metasomal tergite widened apically (Figs 2I, 20G, 38G); 13 th –18 th antennomeres of ♀ dark brown to yellowish brown, at least partly so; length of hind basitarsus often 9–12 × its width................................................ 23
23 Face transversely striate; mesopleuron more or less striate above precoxal sulcus; frons rather setose (except in front of anterior ocellus); [notauli comparatively narrow]................................... B. (G.) sutchanicus Belokobylskij, 1995
- Face smooth; mesopleuron smooth above precoxal sulcus; frons mainly laterally setose or glabrous................... 24
24 Length of penultimate antennomere of ♀ 1.7–1.8 × its width; length of first flagellomere about 4 × its width; propodeum posteriorly with some rugae and median carina wider (Fig. 2G).................. B. (G.) apaches van Achterberg, 1976
- Length of penultimate antennomere of ♀ 1.4–1.5 × its width; length of first flagellomere about 5 × its width; propodeum posteriorly without rugae and median carina narrow (Fig. 20G)............................... B. (G.) latiacis sp. nov.
description: Published as part of Lu, Qian-Yu, Chai, Hong-Fei, Achterberg, Cornelis Van, Tang, Pu & Chen, Xue-Xin, 2025, The first review of the subgenus Ganychorus Haliday, 1835 (Hymenoptera, Braconidae, Brachistinae) in China, pp. 201-250 in Zootaxa 5575 (2) on pages 202-203, DOI: 10.11646/zootaxa.5575.2.1, http://zenodo.org/record/14746703