16 



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

 empty pupa case of a species of Gossus. 



Mr. Harrington had also found this insect quite common on the oak, and had fre- 

 quently seen the empty pupa cases protruding from the bark. 



Mr. Fletcher reported that he had found Gossus center ensis common about Ottawa 

 on the Balm of Gilead tree Populus halsamifera ; the pupa is usually extruded from the 

 bark about four o'clock in the afternoon ; he had frequently seen them at this time of 

 day working gradually out ; the imago usually escapes within an hour after the appear- 

 ance of the pupa. He also reported finding Buprestis fasciaia common on poplars, and 

 had found a larva in poplar wood which he thought, from its appearance, might belong to 

 that species. 



Mr. Harrington said that he had lately found the larvae of a very small fly Gecido- 

 myia robinice on locust trees about Ottawa ; Ihese larvae turn down the margins of the 

 leaves and 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 

 Ganadense. 



Mr. Reed exhibited a larva which he had taken recently feeding on oak ; it evidently 

 was a species of Smerinthus, but did not seem to correspond 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, from which it was quite evident that the beetle bores into the bark and deposits 

 her eggs under the surface. 



Mr. Fletcher said he had raised a brood of the larvae of Smerinthus excEcatus^ and 

 found it to feed readily on Populus balsamifera^ and also on Populus alba, the latter known 

 as the silver abele tree ; the larvae varied very much in colouration ; hitherto this insect 

 has been supposed to feed only on apple, plum and wild cherry. 



Mr. Saunders stated that he found the larvae of Papiolio turnup this season on a 

 new food plant Magnolia acuminata \ as many as forty or fifty specimens were found on 

 a single tree, varying in size from the newly-hatched to the full-grown larva, all feeding 

 together ; eggs were also found at the same time and place. 



Mr. Fletcher reported finding the larva of Darapsa versicolor feeding on swamp 

 loose-strife Nesoea verticilata ; he had bred a single specimen two years in succession ; it 

 is curious to note that this plant grows in the water, and being herbaceous, decays and 

 becomes submerged during the autumn and winter months ; in these instances there was 

 no favourable pupating place nearer than the shore, so that the larva would have to swim 

 ashore, unless it formed its coccoon among the leaves and these drifted to land. 



Mr. Reed exhibited and reported the larvae of Notodonta albifrons Sm. and Abb. as 

 common in London on the maple, he had also observed them recently on the elms in 

 Toronto and Montreal ; other members had found them generally common this season on 

 the oak. 



Mr. Saunders had found the larvae of Papilio cresphontes on the wafer ash Ptelea 

 tri/oliata, also on the prickly ash Zanthoxylum Americanum ; at this late period of the 

 year (September) the larvae may be found quite small. Query, Do these perish from 

 early frost ? If not, how do they pass the winter "? 



The meeting then adjourned to meet next morning at 9.30 a.m. 



Thursday Morning^ October Jf. 

 The meeting opened at the Society's rooms at 9.30. 



The question of the use of Paris green for the codling worm of the apple Ga/rpocapaa 

 pomonella was discussed, and while the members concurred in the desirability of testing 



