LIST OF DIPTERA. 



425 



94. DaSVPOGON LUTATIUS. 



Dasypogon Lutatius, Cat. of Diptera, 2, 357. 



95. Dasvpogon Maceeinds. 

 Dasypogon Macerinus, Cat. of Diptera, 2, 356. 



96. Dasypogon argenteus. 



Foem. Niger, nixeo pruinosus et hirtus ; palpi, alee et halteres 

 dilutissime silacea. 



Dasypogon argenteus, Say. 



Pennsylvania. Maiyland. 



A. AIeb nigra. 



B. Alffi fuscae. - 



C. Alje flavescentes. 



A. Femora fulva. 



B. Femora nigra. 



D. Alae subhyalinae. 



Group 



.(Eacus, fVied. 

 abdominalis, Say. 



cruciatus, Say. 



albiceps, Macq. 



rufescens, Macq. 



97. Dasypogon .JIacus. 



Fcem. Niger ; abdomen aurantiacum, basi apice lateribusque 

 nigris ; aim nigrce. 



Asilus abdominalis. Say, Long's Exped. to St. Peter's River, 



Append. 375. 

 Dasypogon ^acus, Wied. Auss. Zweifl. 390, 37. 



Pennsylvania. 



