Key: Key to genera and species of Hybotidae.
Key based on many different works.
References
Ale-Rocha, R., 2007. Redescription of Oropezella abdominalis Collin from Chile with description of the male and a key to the Neotropical genera of Ocydromiinae (Diptera, Hybotidae). - Revista Brasileira de Entomologia 51(4): 410-412.
Collin, J.E., 1933. Diptera of Patagonia and South Chile. Part IV. Empididae. London. British Museum (Nat. Hist.) & Oxford University Press, 334 p.
Papp, L., & M. Földvári, 2001. A new genus and three new species of Hybotidae with new records of the Hungarian Empidoidea (Diptera). - Acta Zoologica Academiae Scientiarum Hungaricae 47: 349-361.
Plant, A.R., 1989. A revision of the Ocydromiinae (Diptera: Empidoidea: Hybotidae) of New Zealand with descriptions of new genera and species. - New Zealand Journal of Zoology 16: 231-241.
Sinclair, J.S., & J.M. Cumming, 2000. Revision of the genus Apterodromya (Diptera: Empidoidea), with a redefinition of the tribe Ocydromiini. - Records of the Australian Museum 52: 161-186.
Smith, K.G.V., 1967. Family Empididae (Empidae, Hybotidae), p. 1-67. In: Papavero, N. (Ed.). A catalogue of Diptera of Americas South of the United States. Volume 39, Săo Paulo, Departamento de Zoologia, Secretaria de Agricultura.
Last modified 20/01/2010 23:19 by Paul BeukNo of couplets: 20

Key (online version)
1a
Wings absent.
Included:
Ocydromiinae: Apterodromia Oldroyd, 1949
  
b
Wings present.
 2
 
2a
Wings modified in such a way that venation is incomplete or invisible.
  
b
Wings fully developed; if shortened then venation appears to be normal.
 3
 
3a
Discal cell absent, vein M unforked. Anal cell (cell Cu) usually absent; if present, then only very small and anal vein scarcely visible. Small predaceous species, 1-5 mm in length.
Tachydromiinae
  
b
Discal cell present, if absent (Bicellaria [Fig. 282]), then vein M forked into M1 and M2. Anal cell present.
 4
 
4a
Anal cell large, as long as or longer than second basal cell. Discal cell emitting two veins only, vein M2 absent. Hind femora more or less enlarged and/or with long ventral setae.
Hybotinae
 5
b
Anal cell much shorter than second basal cell. Discal cell emitting three veins, though in Ocydromiinae M1 abbreviated or absent. Hind femora slender; if stout (Oedalea), then small ventral spines only near apex and discal cell emitting three veins.
Ocydromiinae s.l.
 9
 
5a
Anal cell short, as long as basal cells; radial sector long, much longer than the distance from humeral crossvein to its origin. Wings maculated (in European species). [Fig. 278]
Syneches muscarius (Fabricius, 1794)
  
b
Anal cell much longer than basal cells (in European species); radial sector rather short, at most as long as the distance from the humeral crossvein to its origin. Wings clear or uniformly clouded, not maculated. [Fig. 255]
 6
 
6a
Basal sector of vein M (separating basal cells) scarcely visible, radial sector very short [Fig. 275]. Antennae inserted above middle of head in profile [Fig. 277]. Hind tibiae at tip and hind metatarsi thickened [Fig. 276].
Syndyas nigripes (Zetterstedt, 1842)
  
b
Basal section of vein M (separating basal cells) distinct, radial sector rather longer [Fig. 255]. Antennae inserted at or below middle of head in profile [Fig. 252]. Hind tibiae and metatarsi simple.
Hybos
 7
 
7a
Mesonotum polished black except for grey dusted narrow lateral and median strips. Fore and mid legs yellow. Male: fore tibiae and tarsi and hind legs with long pale hairs; genitalia rather small.
Hybos femoratus (Müller, 1776)
  
b
Whole surface of mesonotum thinly grey or brownish dusted, at most subshining. Fore and mid legs blackish.
8
 
8a
Large thoracic setae yellowish. Mid femur with a row of ad setae, mid tibiae with several strong av setae. Mesonotum finely brownish dusted. Hind metatarsus only with short ventral setae [Fig. 250], and at least anterior metatarsi translucent brownish. Male: fore tibiae and tarsi rather short pubescent; genitalia very large [Fig. 249].
Hybos culiciformis (Fabricius, 1775)
  
b
Large thoracic setae black. No ad setae on mid femur and no strong av setae on mid tibia. Mesonotum very thinly grey dusted, rather subshining. Hind metatarsus with short but strong ventral spines [Fig. 256] and legs quite black. Male: for tibiae and tarsi with very long black hairs; genitalia scarcely broader than tip of abdomen.
Hybos grossipes (Linnaeus, 1767)
  
 
9a
Vein Rs short, arising near apex of cell bm.
 10
b
Vein Rs long, arising before or in the middle of cell bm.
 11
 
10a
Cell dm long; wing narrow and anal lobe undeveloped;
hind tibia bristled and not geniculate at base; hind femur
banded (Chile, Australasia).
Hoplopeza Bezzi
  
b
Cell dm short; wing broad and anal lobe developed; hind
tibia lacking bristles and generally geniculate at base;
hind femur not banded (Chile, Australia).
Scelolabes Philippi
  
 
11a
Three veins emitted from cell dm reaching wing margin.
 12
b
Two veins emitted from cell dm reaching wing margin, if
the cell dm emit three veins then they do not reach the
wing margin.
 13
 
12a
Fore femur greatly swollen, with 2 long basal spine-like setae; antenna inserted above middle of head.
Apteromyia Oldroyd, 1949 (winged species)
  
b
Fore femur slender; antenna inserted about middle of head.
Neotrichina Sinclair & Cumming
  
 
13a
Eyes with ommatrichia.
Abocciputa Plant, 1989
  
b
Eyes bare.
 14
 
14a
Abdominal sclerites heavily sclerotized, punctate; pulvilli lacking; male terminalia hidden inside segment 8; antennal style present (Australasian, Neotropical, Oriental and Palaearctic Regions).
Chvalaea Papp & Földvári, 2001
  
b
Abdominal sclerites not heavily sclerotized; pulvilli present; male terminalia exposed; if the abdominal sclerites are heavily sclerotized then antennal style lacking (some Oropezella).
 15
 
15a
Short M1 vein arising from cell dm.
 16
b
M1 missing.
 17
 
16a
Antennae inserted above middle of head. Anal lobe of wing weakly developed.
Leptodromia Sinclair, 2000
  
b
Antennae inserted at about middle of head. Anal lobe of wing well developed.
Leptopeza Macquart, 1827
  
 
17a
Anal lobe not developed, wing narrow; in doubtful cases antennal inserted high on head.
 18
b
Anal lobe partially or strongly developed, wing broad; antennae inserted near middle of head.
 19
 
18a
Acrostichal setulae present (Australasian, Neotropical, and
Palaearctic Regions).
Oropezella Collin, 1926
  
b
Acrostichal setulae absent (Malaysia).
Stylocydromia Saigusa, 1986
  
 
19a
First antennal flagellomere ovate, style supra-apicaloval; cell cup long, reaching near apex of cell bm (Afrotropical, Oriental, and Holarctic Regions).
Ocydromia Meigen, 1820
  
b
First antennal flagellomere conical, style (if present) terminal; cell cup short, reaching only middle of
cell bm.
 20
 
20a
Hind femur swollen (New Zealand).
Pseudoscelolabes Collin, 1933
  
b
Hind femur slender (Australia and New Zealand).
Austropeza Plant, 1989
  
 
Images

Figure 249. Hybos culiciformis, adult male

Figure 250. Hybos culiciformis, hind leg.

Figure 251. [No image caption given.]

Figure 252. Hybos culiciformis, head in lateral view

Figure 253. [No image caption given.]

Figure 254. [No image caption given.]

Figure 255. Hybos grossipes, wing

Figure 256. Hybos grossipes, hind leg.

Figure 257. [No image caption given.]

Figure 258. [No image caption given.]

Figure 259. [No image caption given.]

Figure 260. [No image caption given.]

Figure 261. [No image caption given.]

Figure 262. [No image caption given.]

Figure 263. [No image caption given.]

Figure 264. [No image caption given.]

Figure 265. [No image caption given.]

Figure 266. [No image caption given.]

Figure 267. [No image caption given.]

Figure 268. [No image caption given.]

Figure 270. [No image caption given.]

Figure 271. [No image caption given.]

Figure 272. [No image caption given.]

Figure 273. [No image caption given.]

Figure 274. [No image caption given.]

Figure 275. Syndyas nigripes, wing

Figure 276. Syndyas ngripes, male in lateral view

Figure 277. Syndyas nigripes, head in lateral view

Figure 278. Syneches muscarius, wing

Figure 279. [No image caption given.]

Figure 280. [No image caption given.]

Figure 281. [No image caption given.]

Figure 282. Bicellaria spuria, wing