56 



t>IPTERA OF MINNESOTA. 



referred to. At the same time we must acknowledge that the removal 

 of rotting fungi from our woods and gardens, or the hastening of 

 the decay of the same by the activity of these insects, is a most de- 

 sirable thing. In the southern United States, from the fact that a 

 species of Sciara or "Army Worm" appeared in large numbers con- 

 temporaneously with the appearance of yellow fever, it was errone- 

 ously supposed to have some connection with this dread disease, and 

 hence was called the "yellow fever fly." 



Fig. 42. A procession of Sciara larvae. From Brehm's "Thierleben." 



We find in Minnesota the following species, and there are doubt- 

 less numerous others not yet met with : Lasiosoma quadratula, Loew. ; 

 Mycetophila monochaeta, Loew; MycetophUa punctata, Meig. ; M. ( ?) 

 contigua, Walker; Neoglaphyroptera bivittata, Say; Sciara, sp. ; 

 Epicyta, sp. ; Dynatosoma, sp. 



