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July, on elder, (an examination of the elders around the Lover's Walk 

 later in the season showed them to be badly infested with the larvae of 

 this beetle and of some moth). The Locust-borer, Cyllene robinice, was 

 very common in the city during September. The locust trees in the 

 city suffer greatly from the ravages of this beetle ; the wonder is that 

 some which have been noticed can survive their injuries. Specimens of 

 the beetle were received from sev-eral persons. Several specimens of 

 Pogonocherus j)snicellatus were taken between 26th Sep. and 7th Oct. 

 on fences, tree boxes, etc., in the city, and may possibly live in our 

 maples. Chalcophora virginiensis, C- Fortis and 0. liberta were taken 

 on pines near Hull on 24th Sep. and ICtli Oct. Among the last beetles 

 taken were Dicerca divm icata, 30th Oct., and G riocei:)halus agrestis, 10th 

 Nov. Prasocuris varipes was found in great numbers hybernating in 

 crevices in the bark of an oak (yQuercus macrocarpus) on 8th Dec. 



Hemipteha. — This order contains the true bugs, many of which 

 are beneficial while others ai^e decidedly obnoxious and disagreeable. 

 The division of this order known as the Homoptei-a was dwelt upon at 

 some length by our President in his Inaugural Address, and a number 

 of tree hoppers and their habits were described, as well as a gall insect 

 which, as then explained, makes its galls in countless numbers upon the 

 Hackberry, Celtis occidentalis. specimens of which occur near Billings' 

 Bridge, and has I'eceived from Prof. Riley the name of Psylla celtidis- 

 mamma. These insects will be' found fully described in the Annual 

 Eeport (1882) of the Ent. Soc. of Ont. Allied to the psyllas are the 

 aphides so destructive to vegetation. These are of numerous species and 

 occur in countless numbers, but they have not yet been investigated 

 here. On 15th Oct., near Hull, such myriads of aphides swarmed in 

 the mellow autumn air that looking across the fields towards the sun 

 there was the appearance almost of a snow-fall, except that the minu'e 

 living flakes were floating and crossing in every direction, while larger 

 ones with more rapid motions darted in large numbers through the 

 drifting clouds of life ; these were insects of different orders, but chiefly 

 flies and beetles. On the following day the pine-aphides were observed 

 laying their eggs on the leaves in rows of 8-10. Their guardians, the 

 ants, ran to and fro and occasionally one was seen dashing about in great 

 excitement and snapping right and left, apparently at some minute flies 

 which hovered about the aphides and which were probably parasites. 



