56 REPORT OF NEW JERSEY STATE MUSEUM. 



The species belonging here are of no economic importance. The adults 

 "are known as "fish-flies," and the larvae of some of them make good bait for 

 certain kinds of fish; otherwise they may be simply classed as "innoxious." 



Famil 



CORYDALIS Latr. 



C. cornuta Linn. Throughout the State, but more common northwardly, 

 late June to August. The larvae are found under stones in running 

 streams or brooks, and are known as "Dobsons" or "Hellgramites." 



CHAULIODES Latr. 



C. angusticoMis Hagen. Middlesex County VII, 10 (Coll). 



C. fasciatus Wlk. (lunatus Hagen.) Newfoundland VI, 6, So. Orange 

 (Ds) ; Newark. 



C. pectin icorn is Linn. Chester, Paterson, Springfield, Orange Mts., Pali- 

 sades V, 30, New Brunswick, Trenton VI, 10, 28, Anglesea, VII, 12 

 (Coll); Summit (U S Ag) ; Short Hills (Bt) ; Caldwell (Cr) ; Staten 

 Island VII (Ds) ; seems to be the most common of our fish-flies. 



C. rastricornis Ramb. Staten Island VI, 6 (Ds); Anglesea VI, 25 (Coll). 



C. serricornis Say. Paterson VI, 6, New Brunswick, Mercer Co. VI, 10, 

 Lakewood (Coll); Tuckerton VI, 14, common (Gr) ; Caldwell (Cr). 



Fig. 13. Early stages of Corydalis cornuta: a, egg-mass on leaf; b, same, detached, from 



the under side natural size; c, single eggs, enlarged; d, newly hatched larva, 



enlarged; with structural details yet further enlarged c to j. 



