CATALOGUE OF INSECTS. 



051 



Family SCENOPINIDiE. 



The " window - flies " : small, 

 slight, blue flies, somewhat flat- 

 tened, and with yellow or red legs. 

 The larvae are slender and worm- 

 like, often found under carpets, 

 where they feed on "moths " and 

 other carpet pests. 



SOENOPINUS Latr. 



S. fenestralis Linn. Glassboro, 

 VII, 5 (Greene), Riverton, 

 Atco, VII, 21 (Jn), Caldwell 

 (Cr), New Brunswick (Sm). 



li'lG. — The window-fly, Scenopinus fenes- 

 tralis : enlarged. 



Family ACROCERIDiE. 



Called "small-headed flies" because of the unusually small head compared 

 with the large hump-backed thorax and inflated abdomen. They are rare, the 

 larvae are parasitic upon spiders or their egg sacs and are of no economic 

 importance. 



ONCODES Latr. 



O. costatus Loew. "New Jersey," no data. 



O. pallidipennis Loew. Anglesea, VI, 20 (Sm). 



O. incultus O. S. Collingwood, VI, 11. 



Family LONCHOPTBRID-ffi. 



The "spear-winged " flies, characterized by the pointed wings that induced 

 the common name. They occur near water courses, and little is known of them 

 or their habits : only two species have been collected in New Jersey. 



LONCHOPTERA Meig. 



L. lutea Panz Westville, VII, 4, Anglesea, VII, 19 (Jn), New Brunswick, 

 VII, 20 (Sm). 



L. riparia Meig. Ocean Co., V (Sm). 



