158 



DIPTERA OF MINNESOTA. 



(Juriiiia) algciis, Weid., Fig. 8, Plate I, is black with yellow mark- 

 ing on i)ack ]:>art of the head, and with the alulse or scales under the 

 base of the wing, yellow, in striking contrast to the shiny black and 

 sparsely haired abdomen, Boinbylioniyia (Hystricia) abnipta, Wied., 

 shown in Colored Plate II, Fig. i6, is one of the largest and most 

 striking forms, with its large yellow abdomen scantily covered with 

 blackish hairs. Pclctcria tcssclata. Fab., Fig. 154, looks like a small 

 edition of the previous species. , 



Fig. 152. Exorista athiiis 



Fig. 153. Pupaiiuni of E. aflinis. Original. 



There are a]iparently 200 or more species of this family in Cireat 

 , Britain, and Aldrich lists 957 species in his Diptera of North America. 

 Minnesota has so far yielded the following species: Bombyliomyia 

 abnipta, Wied. ; Bekosia bifasciata, Fab. ; Blepharipc::a adnsta, Loew ; 

 Bchinomyia (Jnrinia) algens, Weid. ; Exorista af finis, Fall. ; Pelctcria 

 tcsscUata, Fab. ; P. robusta, Weid. ; Phyto clcsidcs, Walk. ; Phorantha 

 occide litis, Walk.; So. Dak.; Phorichacta sequax, Will.; Musiccra 

 normula, V. d. W. ; Winthemia quadripustulata, Fab. ; Tachina robusta, 

 Town, Fig. 6, Plate II ; T. mella, Walk. ; Trichophora ruftcanda, Wulp ; 

 Gonia capitata, De G. ; Gyinnosoma fulignosa, Desv. ; Frontina frenchii, 

 W^ill. ; Senotainia trilincata, Wulp.; Sturmia iiiquinata, Wulp.; 

 Ocyptera caroliiiac, Desv.; Archytas aiialis, Fab.; A. aterrima, Coq. ; 

 A. lateralis, Macq. ; Hypostcna variabilis, Coq. ; Linnaemyia picta, 

 Meig. We find an unnamed form in collection labeled "from Cinibcx 

 americana." 



