161 



''Case-worms {Phryganeidce) were somewhat rarely found, rising to 

 15 per cent, in the Rock Bass, and 12 per cent, in the Minnows of the 

 Rybopsis group, but otherwise averaging from 1 to 6 per cent, in less 

 than half of the species." 



THE HOSTS OF A FEW LARGER ICHXEUMONIDS. 



We had occasion last May, in writing to Mr. Clarence M. Weed con- 

 cerning his recently-published paper, "Biological i^otes on Some North 

 American Ichneumonidie" (Psyche, V^ol. V, No. 145, May, 1888), to bring 

 together the records from our note- books of the habits of several of the 

 species mentioned by him, in order to supplement his short list. As 

 these facts have not been published we give them below as a matter of 

 record: 



Pimpla notanda Proteoteras -aesculana. 



A Leaf- roller on Locust (not reared). 

 Pimpla annulipes Carpocapsa pomonella.* 



Phycita nebulo.* 



Papilio ajax. 



Datana ministra. 



Tortrix quercifoliana. 



A Leaf-roller on Strawberry (not reared). 



Teras oxycoccana. 



Heterocampa marthesia. 



Gelechia gallae-asterella. 

 Pimpla conquisitor Aletia xylina.* 



Clisiocamx^a americana. 



Thyridopteryx ephemerae for mis.* 



Phycita nebulo.* 

 Pimjila inquisitor Oxgyia leucostigma.* 



Gelechia gallEe-solidaginis. 



Grapholitha olivaceana. 



Coleophora cinerella. 



Leaf-roller on Ash (not reared). 

 Trogus obsidianator . . .Papilio asterias. 

 Trogus exesorius. .... .Papilio ajax. 



Papilio marcellus. 



Papilio asterias.* 



Papilio troilus.* 



Papilio turnus.* 

 Ichneumon rufiventris .Pyrameis cardui.* 



Pyrameis huntera. 



Vanessa milberti. 



* Those records ■vritli an asterisk have been published in our accounts of these species. 



We may further mention that Professor Comstock in ld79 reared P. conquisitor from 

 Phacellura liyalinitalis, and that we have more recently reared P. annulipes from a 

 Chilo near oryz<xeUus, which we have reared from twigs of sumach at Washington. 

 10332— Xo. 5 4 



