THE CANADIAN ENTOMOLOGIST. 203 



DISCUSSION ON MISCELLANEOUS ENTOMOLOGICAL SUBJECTS. 



Mr. Fletcher exhibited a borer found by him injuring maple, the insoct 

 being a small moth belonging to Hepiaius, or some closely allied genus. 

 This insect was new to the members. 



Rev. Mr. Bethune stated that he had found, in a large burrow in an 

 oak tree, the empty pupa case of a species of Cossus. 



Mr. Harrington had also found tliis insect quite common in the oak, 

 and had frequently seen the empty pupa cases protruding from the l>ark. 



Mr. Fletcher reported that he had found Cossus centerensis common 

 about Ottawa on the Balm of Gilead tree, Fopnlus balsamifera. The 

 pupa is usually extruded from the bark about 4 o'clock in the afternoon. 

 He had frequently seen them at this time of day working gradually out. 

 The imago generally escapes within an hour after the appearance of the 

 pupa. He also reported finding Buprestls fasciata common on poplars, 

 and had found a larva in poplar wood which he thought, from its appear- 

 ance, might belong to that species. 



Mr. Harrington said he had lately found the larva of a very small fly, 

 Cecidomyia robinice, on locust trees about Ottawa. These larvae turn 

 down the margins of the leaves, afld live within the enclosure thus formed. 



Mr. Fletcher had found the stems of sunflowers much bored into by 

 some insect, and exhibited a larva which he had taken boring into the 

 stem of a lily, Lilium Canadeiisc. 



Mr. Reed exhibited a larva which he had taken recently feeding on 

 oak. It evidently was a species of Smerlnthtis, but did not seem to cor- 

 respond to any hitherto described larva of this genus to which he had 

 been able to refer. 



Mr. Saunders made some reference to the manner in which the eggs 

 of the round-headed apple-tree borer, Saperda Candida, are placed. He 

 had, until lately, held the opinion, in common with other Entomologists, 

 that the eggs are laid on the surface of the bark of apple trees near their 

 base, but he had recently received from a correspondent, Mr. C. G. Atkins, 

 of Manchester, Maine, specimens of the eggs deposited in young apple 

 trees, with pieces of the bark in which they had been placed, from which 

 it was quite evident that the beetle bores into the bark and deposits her 

 eggs in the channel thus formed. 



Mr. Fletcher said he had raised a brood of the larvae of Smeritithus 

 excecaijis, and found them to feed readily on Popuhcs balsamifera, and also 



