426 LIST OF DIPTERA. 



98. Dasvpogon abdominalis. 



Flavus ; antenna nigra ; thorax glaucus, fusco vittatus ; aler 

 fusca. 



Dasypopon abdominalis, Say, Joum. Acad. Philad. iii. 50, 2. 

 Wied. Atiss. Zweifl. i. 412, 75. 



Pennsylvania. 



99. DAsypoGON cruciatcs. 



Nigro-fuscus ; thorax maryine orichalceo ; abdomen niaculis 

 fasciisque orichalceis ; pedes fulvescentes ; alee flava pone 

 basiin litnpidiores. 



Dasypogon cruciatus, Say, Joum. Acad. Philad. iii. 52, H. Wied. 

 Auss. Zu-eif. i. 381, 24. 



Pennsylvania. 



100. Dasypogon albiceps. 



Fcem. Caput album ; thorax cinerpu.i, t-ittit nigris ; abdomen 

 nigrum, albo fasciatum ; pedes nigri, libiis fulvis ; ala sub- 

 Jlavescentes. 



Dasypogon albiceps, Macq. Dipt. JExot. Suppl. 1, 69, 51. 

 Texas. 



101. Dasypogon rufescens. 



Testaceus ; fades et antenna fulva ; mystax flavus ; thorax %-itti.<! 

 tribus ni(jris, media divisa ; abdominis latera albo pubtscentia 

 nigroque maculata ; ahe subh'/aliua, rcnis e.rtcrno-mediis '3a 

 et 4a conjunctis. 



Dasypogon rufescens, Macq. Hist. Nat. Dipt. i. 295, 8. 

 Phil.adelpbia. 



