PLATE I. 



GENUS DOLICHOPUS. 



Fore tarsi of males, side view. 

 dakotensis n. sp. 

 e dactyls Loew. 

 palcestricus Loew. 

 angustatus n. sp. 

 splendidus Loew. 

 brevipennis Meigen. 

 ciiprins Wiedeman. 

 longipennis I^oew. 

 scoparius Loew. 



scoparius Loew, last three joints from above. 

 fundi tor Loew. 

 flagelliteiiens ^\' heeler. 

 pacJiycnemus Loew. 

 albicoxa n. sp. 

 b if r act us Loew. 

 'i'igilans n. sp. 

 pluiHflSus n. sp. 

 coijuillctii n. sj). 

 occidentalis n. sp. 

 agilis n. sp. 

 lobatus Loew. 

 duplicaius n. sp. 

 grandis n. sp. 

 li' ill is ton a n. sp. 

 obcordatus n. sp. 

 Middle metatarsus of male, side view. 

 Fig. 25. coma t us Loew. 



GENUS HYGROCELEUTHUS. 



26. latipes, middle tarsus of male. 



27. cre/iatus O. S. tip of wing. 

 27a. cienatus var., male antenna, inner side. 



28. c Hiatus n. sp., tip of wing. 



29. afflictus Osten Sacken, tip of wing. 



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