THE INSECTS OF NEW JERSEY. 



735 



D. dimidiatus Loew. Avalon VI, 8 ( Jn) ; Anglesea V (div) ; Cape May 

 IX, 21 (Dke). 



D. thoracicus Say. Forest Hill IX (Wdt) ; Blackwood VI, 8 (Jn). 



SCATOPSE Geoffrey. 



S. notata Linn. Clementon V, 9 (Jn) ; Glassboro V, 19 (Hk). 

 S. pygmaea Loew. Riverton VII, 31, IX, 9. 

 S. atrata Say. Riverton IV, 23. 



EUPITENUS Macq. 



E. ater Macq. Riverton IV, 9 (CG). 



Family SIMULID^. 



Rather undersized chunky flies, known as "black flies," dark in 

 color, the thorax well developed and somewhat produced forward so as 

 to partially conceal the small head from above. Though the head is 

 small in proportion to the insect, the mouth parts are exceedingly well 

 developed and furnished with a formidable array of lancets for punctur- 

 ing and blood-sucking. The wings are 

 short and broad, the venation obscure 

 except along the front margin. 



These flies are horrible pests local 

 ly, not so much in our State as in 

 some others west and north, the "buf- 

 falo gnat" of the Mississippi Valley 

 region and "black fly" of the north 

 woods being excellent examples. 



In New Jersey some species are 

 pests in the Orange Mountains and 

 northward, getting into the ears of 

 horses, or even occasionally of man. 



The larvse are aquatic and live in 

 running water. 



SIMULIUM Latr. 



S. venustum Say. "Black fly"; Del. 

 Water Gap VII, 11, Clementon V, 

 30 (Jn) ; Orange Mts., Caldwel! 

 VII (Cr); Lucaston IX, 3 (Dke). 



S. invenustum Walk. Passaic (U S 

 Ag) ; Orange Mts. (Sm), Clemen- 

 ton IV, 15 (Jn) ; Manumuskin IV, 

 28, lona IV, 20 (Dke). 



S. vittatum Zett. Orange Mts. (Sm). 



S. meridionale Riley. Passaic (U S Ag) 



S. bracteatum Coq. Clementon V, 30. 



Buffalo-gnat. 

 Fig. 302. 



Riverton VII, 6, X, 20. 



