82 ENTOMOLOGICAL SOCIETY 



specimens. Of the various species obtained, Polystocchotes 

 punctatus, Hcmerobius pacificus, H. disjunctus and Micromus 

 montanus appear to be the commonest species, with Hemerobius 

 mcestus, perhaps, coming next in abundance. The finding of 

 Hemerobius castanece and Sisyra vicar ia is of interest. It is 

 rather unfortunate that each of the five new species described in 

 this paper is represented by a single specimen only ; yet the 

 characters they exhibit appear to differentiate them well from the 

 species previously recognized. 



I am indebted to Mr. Nathan Banks for the loan of his collec 

 tion to aid in determining our material, and for helpful sugges 

 tions. 



The four genera represented in the collection may be distin 

 guished by the key given in Needham's "Aquatic Insects in the 

 Adirondacks." * 



Sisyra vicaria (Walker). 



Hemerobius vicarius Walker, Brit. Mus. Cat., Neur., p. 297, 1853. 

 S\_i'syra] vicaria Hagen, Syn. Neur. N. Am., p. 197, 1861. 



u Lilypad Lake," Kaslo, 8 July. Two specimens of this in 

 teresting little Hemerobiid, whose larvas are known to live para- 

 sitically on fresh water sponges, were secured on the borders of 

 a small marshy pond in the forest. This is the first record of the 

 capture of Sisyra in Western North America. It seems possi 

 ble that the related genus Climacia, the larvae of which, as dis 

 covered by Needham, have similar habits, may also some day be 

 found in the West. 



These specimens appear to differ somewhat from examples in 

 the National Museum labeled vicaria^ yet do not in all respects 

 agree with Needham's description of umbrata^\ the only other 

 described North American species. It does not yet appear cer 

 tain that Needham's and Walker's species are distinct, and a good 

 series of vicaria from Georgia, the type locality, may be neces 

 sary to definitely settle the question. These things considered, I 

 prefer not to describe the two specimens from British Columbia, 

 perhaps more or less teneral, as representing a new species. 



Polystoechotes punctatus (Fabricius). 



\_Semblts~\pnjictata Fabricius, Ent. Syst, n, p. 73, 1793. 

 P{plystoechotes\ punctatus Hagen, Syn. Neur. N. Am., p. 206, 1861. 



Kaslo, 12 July to 20 August, 28 specimens ; Robson, 20 Au 

 gust (Dyar : three specimens) ; Arrow Lake, 21 August (Dyar: 



* Bull. N. Y. State Mus., No. 47, p. 551, September, 1901. What Need- 

 ham, under aa in his key, terms branches of the radial sector are com 

 monly known simply as radial sectors. 



fBull. N. Y. State Museum, No. 47, p. 555, pi. 12, figs. 6 and 7, text 

 figs. 33, 34 and 36, September, 1901. 



