Muscida 307 



jj. Apex of the proboscis without black teeth. 



k. Eyes of male separated by a distance equal to a fourth 



the width of the head. House or typhoid fly. 



M. domestica L. Widely distributed. .Musca L. 



kk. Eyes of the male contiguous. E. corvina. Europe. 



Eumusca Town 



hh. Last section of Ri+5 with a gentle curve (fig. 102). 

 i. Eyes pilose. 



j. Claws in the male somewhat elongated; no orbitals in 



either sex; antennae separated at the base by a flat 



carina; abdomen marked with red or yellow. G. 



maculata. Europe and America. . . .Graphomyia R. D. 



jj. Claws short and equal in the two sexes; two or three 



stout orbital macrochaetae in the female; RI scarcely 



produced beyond the r-m crossvein; eyes contiguous 



in the male. P. obsoleta. Brazil . . Phasiophana Br. 



ii. Eyes bare; fronto-orbital macrochaetae in a double row, 



antennae contiguous at the base. 



j. One or more pairs of well developed anterior inner dorso- 

 central (acrostichal) macrochaetae; seta on extensor 

 surface of hind tibia. M. assimilis, stabulans, etc. 



Europe and America Muscina R. D. 



jj. Anterior inner dorsocentrals and the setae on the ex- 

 tensor surface of the hind tibia wanting. M. micans, 

 etc. Europe and North America. . . .Morellia R. D. 

 ff. Squamula thoracalis not broadened mesad and caudad, not 

 reaching the margin of the scutellum; macrochaetae on extensor 

 surface of the hind tibia wanting, 

 g. Eyes pubescent. M. meditabunda. Europe and America. 



Myiospila Rdi. 



gg. Eyes bare; RI ends before the middle of the wing. A number 



of species from the tropics of both hemispheres 



Clinopera V. d. W. 



bb. Hypopleurae with a vertical row of macrochaetae. 

 c. Eyes pubescent. 



d. RI ends about opposite the r-m crossvein; basal section of Rj+s bristly 

 nearly to the crossvein; S. enigmatica. Africa. Somalia Hough 

 dd. RI ends distad of the r-m crossvein. 



e. Eastern hemisphere. Australasia. N. ochracea, dasypthalma. 



Neocalliphora Br. 



ee. Western Hemisphere. T. muscinum. Mexico. . Tyreomma V. d. W. 

 cc. Eyes bare. 



d. The vibrissal angle situated at a noticeable distance above the level of 



the margin of the mouth. 



e. Sternopleural macrochaetae arranged in the order 1:1. 

 f . Genae with microchaetae. 



g. Body grayish, with depressed yellow woolly hair among the 

 macrochaetae ; wings folded longitudinally over the body when 



