AQUATIC INSECTS IN THE ADIRONDACKS 547 



found on snags about the lake shores, were very generally parasitized, by 

 the very minute egg parasite, Trichogramma minutum Riley. 

 The proportion of the eggs thus destroyed in a number of clusters col- 

 lected in several places, was found by count to exceed 70%. As will be 

 noted below, a great number of clusters of eggs ofCh. serricornis 

 were hatched under observation. Among these not a single egg parasite 

 was observed. 



Chauliodes pectinicornis Linnaeus 

 Comb-horned fish fly 



Plate 26, fig. 1 

 1763 H e merobi a s pectinicornis Linnaeus, Amoen. acad, 6:412 

 1767 Hemerobius pectinicornis Linnaeus Syst, nat. Ed. 12, v. 1, 



pt 2, p. 911 

 1775 H em erobi u s pectinicornis Fabricius, Syst. ent. p. 309, 

 1781 Semblis pectinicornis Fabricius, Spec. ins. 1 : 386 

 1787 Semblis pectinicornis Fabricius, Mant. ins, 1 : 244 

 1807 Chauliodes pectinicornis Latreille, Gren. crust, ius. 3 : 198 



1862 Chauliodes pectinicornis Hagen, Synopsis Neur. N. Am. p. 189 



(description of imago) 



1863 Chauliodes pectinicornis Hagen, Ent. soc. Phil. Proc. 2:181 



(mention) 



1869 Ch au 1 io d e s p e cti n i c or n i s Walsh-Riley, Am. ent. 1:245 (char- 

 acters of imago) 



1869 Chauliodes pectinicornis Packard, Guide study ins. p. 607 



1873 Chauliodes pectinicornis Hagen, Bost. soc. nat. hist. Proc. 15 : 29 



(mention) 



1874 Chauliodes pectinicornis Pettit, Can. ent. 6 : 45 (occurrence in 



Canada) 



1877 C h a u lie d es pectinicornis Moody, Psyche. 2:52 (description 



(in part) and habits of larva) 



1878 Chauliodes pectinicornis Riley, Can. ent. 11 : 97-98 



1879 C h aul i o de s pectinicornis Kiley, Am. ass'n adv. sci. Proc. 



p. 286-87 (eggs and characters of larvae) 

 1888 Chauliodes pectinicornis Comstock, Introd. ent. p. 220 

 1888 Chauliodes pectinicornis Packard, Eut. for beginners, p. 87 



(mention) 

 1895 Chauliodes pectinicornis Comstock, Manual stud. ins. p. 178 

 Chauliodes pectinicornis Lintuer, N. Y. state ent. 8th an. 

 rep't. p. 155-59 (a full account with digest of preceding papers and origi- 

 nal figure of imago (text fig. 15) and remarks as to its probable econ- 

 omic status) 



A single female^ specimen was bred from a pupa found in an old pine 



1 This female was caged In a trap lantern (from which the cyanid was omitted; for a night and 

 part of two days, in the hope of iurlug males, but without result. 



