52 



STATE BOARD OF AGRICULTURE. 



The adults called "fish flies" are sluggish and, though common throughout the 

 State, are rarely seen. They are quite usually sent to the Station with the record 

 that nothing of that kind had ever been seen before by even the oldest inhabitant. 



None of the species feed upon growing vegetation. 



S. infumata Newn. 

 S. americana Ramb 



Family SIALIDJE. 



SIALIS Latr. 

 New Brunswick. 

 New York to Georgia. 



CHAULIODES Latr. 

 C. lunatus Hagen. Newark. 

 C pectinicornis Linn. Staten Island VII (Ds), Summit, Long Branch (U 



S Ag), Caldwell (Cr), Short Hills (Bt), New Brunswick : seems to be the 



most common of the fish flies. 



C. rastricornis Ramb. New York to Georgia. 



O. serricornis Say.=maculatus Say. Caldwell (Cr), Lakewood, New 

 Brunswick. 



Fig 19.-Early stages of Corydalus cornutus : a, egg-mass on leaf; b, same, detached, from the under 



size-natural size; c, single eggs, enlarged; d, newly hatched larva, enlarged ; 



with structural details yet further enlarged e to /. 



CORYDALUS Latr. 

 C. cornutus Linn. Throughout the State late June to August : more common 

 northwardly where the larvse, known as " Dobsons " or "Hellgram- 

 mites, ' ' are abundantly found under stones in running streams and brooks 



