E. T. t'RESSON, JR. ' 31 



IS. Scutcllum with only two bristles; second antenna! joint elongate 



Sepedon 



Scutclluni with four bristles " 19 



19. Propleural bristle present; second antennal joint much shorter than 



third; frons shining Oidematops 



Propleural bristle absent; second antennal joint as long as third; Irons 

 ojjaque Hedroneura 



8ul)family Dryomyzinae 



In this group I include those weakly bristled species with the 

 pile well developed. The species consist mostly of large, pale 

 colored forms, sinnilating some Scathophagids. The face, typic- 

 ally, is very concaved in profile, with well projecting epistoma, 

 which character, however, is not present in one of our species. 

 This character was considered important by Hendel, and prob- 

 ably exists in all European species. The antennae here are short, 

 second joint triangular, third rounded or somewhat longer than 

 l)road. 



I include Oedoparea rilauca Coquillett^ here, near Dnjomyza. 

 This species is thickly pilose with a discoidal third antennal 

 joint, and a projecting clypeus which protrudes far beyond the 

 slightly projecting epistoma; the scutellum has six bristles; the 

 propleural bristles are present, but not easily distinguished from 

 the surrounding pile. The general color is opaque, lead color. 

 It was described from Alaska. I do not note it further as it is 

 not likelv to be found much farther south. The generic name 

 Oedoparea may not be applicable to the species. In Williston's 

 Alanual the species is referred to Heterocheila, but I prefer to 

 use the name under which it was originally described. 



NEUROCTENA Romlani 



1868. Rondani, Atti Soc. Ital. d. Sci. Xat., xi, 5(3. 



1869. Rondani, Prod. Dipt. Ital., vii, (3), 9. 



This genus does not seem to be well understood. It is not 

 recognized in the European catalogues as distinct from Dryomyza, 

 although Rondani specifically states that it differs in the ciliation 

 of the second (evidently referring to our first) vein. This is 

 certainly a character of generic importance in this family, and 



^900. Proc. Wash. Acad. Sci., ii, 458. 



TRANS. AM. ENT. SOC, XLVI. 



