40 THE CANADIAN ENTOMOLOGIST. 



was seen on 24th June, and a larva taken the same day spun its cocoon- 

 on the 30th. On ist July, I noticed a young ash in front of a neighbor's 

 house with its leaves badly eaten. It immediately struck me that this 

 might be the action of larvae of Selandria tarda, and on examination I 

 found upon the under side of the leaves a number of large whitish larvae 

 corresponding to those described by Mr. Osbom (Can. Ent., vol. xvi., 

 page 150). They fed a few days longer and then went into the earth. 

 During July larvae of various species were very plentiful, and in some 

 instances the plants attacked by them were much defoliated. The flies 

 were also abundant and many species were captured, such as T. verticalis, 

 T. vetitralis, T. basilar is, H. trisyllaba, and Emphyius tarsatus ; the 

 last is a large handsome insect resembling superficially the members of the 

 genus Tenthredo. In August saw-flies diminished in numbers, but several 

 species could still be obtained, and Allantus basilaris was, as usual, com- 

 mon on golden-rod, etc. About the middle of Sept. (12th?) a number 

 of plants of turtle-head (Chelotie glabra) were found infested by the 

 larvae of some unknown species. These, unlike the majority of saw fly 

 larvae, were very pretty caterpillars, mottled, or marbled, with velvety 

 black and white, and with jet black heads. The same species has been 

 found by me in July feeding upon meadow-rue ( Thalidrtitn cornuii), but 

 I have not succeeded in breeding it. A few larvae of other species were 

 seen-up to the first of October, but the repeated sharp frosts apparently 

 caused them to disappear. My captures of saw-flies during the season 

 number altogether about 300 specimens, with perhaps one-fourth as many 

 species. Of these many are rare insects, while several species are yet 

 undetermined. 



CHRYSOMELA ELEGANS, ROGERS. 



Dear Sir : In the Society's report for 1882, Mr. W. H. Harrington 

 states that he had found this species to be common at Ottawa, but had not 

 discovered its food plant. I find elegans to be abundant in this neighbor- 

 hood on Beggar Ticks, Bidais frondosa and B. ccrriua. There appears 

 to be two broods, if not more, as I have found them plentiful in June and 

 again in August and September ; the beetles of the last brood evidently 

 hybernate, as I have taken stray specimens in early spring. The food 

 plant was kindly determined for me by Dr. J. B. McConnell. 



F. B. Caulfield, Montreal, P. Q 



