140 



NORTH AMERICAN DIPTERA 



Stiatiomyidffi IV.— 49, Lophoteles pallidipennis, after Williston : 50, Neurota tricolor; ol, 

 Gowdeyana mirabilis; 52, Zabrachia polita $; 53, Berisinyia nigrofemorata; 54, Zabrachia polita 

 cT; 55, Berkshiria, scutellum ; 56, Berkshiria; 57, Neopachygaster maculicornis; o8, Zabrachia 

 polita; 59, Gyneuryparea lasiophthalmus ; 60, Psephioccra minuta, after Williston; 61, Brachy- 

 gaster pulcher; 62, Eupachygaster punctifer; 63, Merosargus bulbifrons. 



