FOREST, FISH AND GAME COMMISSION. 



519 



color than those of C. serricornis, and were arranged in somewhat more regular 

 V-shaped rows, never more than one layer in depth. The minute egg parasite, 

 Trichogrmmna minutinii Riley, destroyed a great many eggs of this species. In a 

 number of clusters over 70 per cent were attacked. 



FIG. 4. LARVA OF CUAULIODES PECTINICORNIS. 

 a, side view; l\ dorsal view; c, an abdominal segment enlarged; d, anal segment with appendages similarly enlarged. 



AFTER LINTNER. 



Chauliodcs pcctinicornis 

 Linn. This species is 

 known as the comb-horned 

 fish fly, and a single female 

 specimen was bred from a 

 pupa found in an old pine 

 stump in the edge of the 

 water near the outlet of 

 Little Clear Pond. This 



is the largest of the ashen 



FIG. 5. THE COMB-HORNED FISH-FLY, CHAULIODES PECTINICORNIS, 

 NATURAL SIZE- 

 AFTER LINTNER. 



gray species of Cliaiiliodcs. 



Chauliodcs serricornis Say. This form, known as the saw-horned fish fly, was 

 very common along Little Clear Creek between the hatchery and the railroad. Half 



