1	All legs wholly blackish brown to black excluding tarsomere 1	2
–	Legs at least partly yellow to dark yellow excluding tarsomere 1	8
2	All legs wholly blackish brown to black	3
–	Legs blackish brown, but only tarsomere 1 dark yellow	H.griseus Yang & Yang, 1991
3	R4+5 and M1 weakly convergent or parallel apically	4
–	R4+5 and M1 divergent apically	7
4	R4+5 and M1 nearly parallel apically	H.anae Yang & Yang, 2004
–	R4+5 and M1 convergent apically	5
5	Mid tarsomere 1 with av at extreme base	H.leucopogus sp. nov.
–	Mid tarsomere 1 only with 2 dorsal bristles, without ventral bristles	6
6	Fore tarsomere 2 without ad. Female: Sternite 7 baso-lateral and apico-lateral corner slightly protuberant in lateral view; narrow basally, nearly trapezoid in ventral view	H.curvitibia sp. nov.
–	Fore tarsomere 2 with 1 long subapical ad. Female: Sternite 7 only apico-lateral corner slightly protuberant in lateral view; nearly quadrate in ventral view	H.modificatus sp. nov.
7	Arista bare; hypandrium bifurcated apically	H.bispinipes Saigusa, 1965
–	Arista pubescent; hypandrium with oblique apical margin narrowing towards tip	H.jianyangensis Yang & Yang, 2004
8	Fore or mid tarsomeres 1 or 2 blackish brown to black	9
–	Fore and mid tarsomeres 1 or 2 yellow to dark yellow	15
9	Arista pubescent	H.concavus Yang & Yang, 1991
–	Arista bare	10
10	Hind tarsus yellow to brownish yellow	11
–	Hind tarsus blackish brown to blackish	13
11	Mid tibia yellow	H.longshengensis Yang & Yang, 1986
–	Mid tibia blackish brown to black	12
12	Mid tibia with 1 very long dorsal bristle at base, 1 very long dorsal bristle and 1 ventral bristle at middle; hypandrium with 1 thin finger-like process	H.ancistroides Yang & Yang, 1986
–	Mid tibia with 2 long dorsal bristles on basal 1/2 and 2 ad on apical 1/2; hypandrium with oblique incision	H.xiaohuangshanensis Yang, Gaimari & Grootaert, 2005
13	First flagellomere not elongated, with 2 blackish dorsal hairs; R4+5 and M1 parallel apically; abdomen short thick	H.fujianensis sp. nov.
–	First flagellomere much elongated, without dorsal hairs; R4+5 and M1 divergent apically; abdomen long narrow	14
14	Fore tibia with 1 ad near middle; mid tibia with 2 very long ad on basal 1/2 and 1 very long av at middle; hind tibia without row of ad and pd	H.dazhulanus sp. nov.
–	Fore tibia with 1 long strong preapical ad; mid tibia with 2 long strong ad on apical 1/2 and 1 long pv at middle; hind tibia with 1 row of short thin ad and pd	H.wuyishanus sp. nov.
15	Fore and mid femora blackish brown to black	16
–	Fore and mid femora yellow to dark yellow	20
16	Hind tibia with 1 row of short thin pd on apical 1/2	H.longidigitatus sp. nov.
–	Hind tibia without row of pd on apical 1/2	17
17	All tibiae mostly blackish brown to black	18
–	All tibiae dark yellow to yellow	H.zhejiangensis Yang & Yang, 1995
18	Left surstylus with one curved process and one hook-like process	H.basiflavus Yang & Yang, 1986
–	Left surstylus only with one thin finger-like process	H.wui Yang & Yang, 1995
19	Hind femur blackish brown to black	20
–	Hind femur yellow to brownish yellow	22
20	Hind tibia with no dorsal hairs at middle	H.brevidigitatus sp. nov.
–	Hind tibia at least with 1 dorsal hair at middle	21
21	Hypandrium not furcated apically	H.chinensis Frey, 1953
–	Hypandrium bifurcated apically	22
22	Left surstylus trifurcated, right surstylus without furcation	H.constractus sp. nov.
–	Left surstylus bifurcated, right surstylus trifurcated	H.uniseta Yang & Yang, 2004
23	Thorax blackish brown to blackish except mesopleuron brownish yellow	24
–	Thorax entirely blackish brown to black	25
24	Hypandrium obtuse apically	H.flaviscutellum Yang & Yang, 1986
–	Hypandrium bifurcated apically	H.wangae Yang, Merz & Grootaert, 2006
25	Right surstylus with 3 denticles	H.serratus Yang & Yang, 1992
–	Right surstylus without denticles	26
26	Hypandrium with 2 processes of nearly equal width	H.gutianshanus Yang & Yang, 1995
–	Hypandrium with 1 thin left process and 1 wide right process	H.orientalis Yang & Yang, 1986