Al 
Apical cell ending at or close to the extreme winetip—Continned. 
Abdomen bearing macrochiwtiv. a 
Sides of face with hairs or macrochietie on the lower half: Myiophasia, 
Phyto, Mauromyia, Cryptomeigenia, Ceratomyiclla, EKulasiona, Admontia. 
Sides of face, on at least the lower half, bare. 
Proboscis shorter or only slightly longer than height of head. 
Frontal vitta opaque. 
Vibriss:e on a level with the front edge of the oral margin. 
Penultimate joint of arista at least twice as long as broad: 
Medina, Schizotachina, Clausicella, Plectops,  Lispidea, 
Thryptocera. 
Penultimate joint of arista shorter or only slightly longer 
than broad: <Actia, Lasioneura, Chotophleps, Celatoria, 
Hypostena, Didyma, Macquartia, Hyalurgus, Polidea, Hypo- 
chata, Pelatachina, Racodineura, Lrvia, Leskia, Leskiomima, 
Apinops. 
Vibrissie distinctly above the front edge of the oral margin: 
Leucostoma, Sciasma, Hyalomyodes, Uistrophasia, Clytiomyia, 
Kutrixa, Xanthomelana. 
Frontal vitta highly polished: Hemyda. 
Proboscis at least one-third longer than height of head: Beskia, Isoglossa, 
Epigrimyia, Siphona. 
Apical cell ending some distance in front of the extreme wingtip. 
Last section of the fifth vein more than one-half as long as the preceding sec- 
tion: Heteropterina, Plagiprospherysa, Metaplagia, Paraplagia, Cyrtophlaba, 
Plagia, Siphoplagia. 
Last section of the fifth vein less than one-third as long as the preceding section. 
Sides of face on the lower half bare. 
Vibrisse distinctly above the front edge of the oral margin. 
Eyes bare. 
Penultimate joint of arista more than twice as long as broad: 
Distichona, Chotoglossa. 
Penultimate joint of arista shorter or only slightly longer than 
broad: Pachyophthalmus, Scnotainia, Pseudotractocera, Biomyia, 
Atacta, Siphosturmia, Belvosia, Melanophrys, Aphria, Ocyptera. 
Eyes distinctly hairy: Linnemyia, Nemorwa, Panzeria, Macromeigenia. 
Vibrisse on a level with the front edge of the oral margin. 
[yes distinctly hairy: Gymnocheta, Metaphyto, Exoristoides, Hyphan- 
trophaga, Exorista, Huphorocera, Phorocera. 
yes bare: Irontina, Sturmia, Masicera, Acemyia, Pseudocheta, Pros- 
pherysa, Vanderwulpia, Euthera, Houghia, Tachina, Tachinopsis, 
Demoticus, Paraphyto, Paracheta, Blepharipeza. 
Sides of face with hairs or macrochiete on the lower half. 
Vibriss on a level with the anterior edge of the oral margin: MWinthe- 
mia, Muscopteryx, Paradidyma, Atrophopalpus, Metacheta, Phoricheta, 
Chetoplagia, Metopia, Araba, Opsidia, Hilarella, Tricogena, Brachycoma, 
Luthyprosopa. 
Vibriss:e distinctly above the front edge of the oral margin. 
Head at the vibrisse# much shorter than at base of antenne: Gonia, 
Spallanzania, Gadiopsis, Chetogedia, Dichocera, Microphthalma. 
Head at the vibrisswe longer than at base of antennie: dAmobia, 
Trichophora, Cuphocera, Peleteria, Archytas, Echinomyia, Epalpus, 
Bombyliomyia, Dejeania, Paradejeania, Jurinea, Jurinella. 
