170 Forty-ninth Keport on the State Museum 



hairy than in the pear midge. The ovipositor in the female of D. pyri- 

 vora is much longer and more slender, and terminates in lanceolate,, 

 acuminate genital valves. 



Anthomyia sp. ? 

 The Raspheny-cane Maggot. 



(Ord. Diptera: Fam. ANTHOMYiiDiE.) 



About the middle of May, wilted and blackened tips of raspberries 

 were received from D. F. Harris, of Adams, Jefferson county, N. Y., 

 which at the first sight were thought to be the result of the operations of 

 the raspberry-cane girdler, Oberea Mffiaculafa, but on examination the 

 peculiar girdling punctures were not to be found. On request, a large 

 number of tips were sent, that the insect, which proved to be unknown,, 

 might be reared and identified. The infested tips first soften, then bend 

 over, blacken, dry, and break off at an average distance of about six 

 inches from the end. In fresh tips received, the discoloration at first was 

 about an inch in extent, but gradually advanced for two or three inches 

 down the unshriveled portion of the cane. The larva causing the injury 

 was usually found in a short burrow in the pulpy matter at the lower part 

 of the discoloration. It is shining-white, pointed at the head and obtuse 

 at the other extremity, and showing in transparency a v-shaped internal 

 organ of which the apex is toward the head. The attempt to rear the 

 larva was not successful, as the tips under different methods of treatment 

 were so quickly attacked by mold that the larvse soon died. 



Observed in Canada. 



It was evidently dipterous, and is probably the "raspberry-cane 

 maggot, Antho/nyia?" of Mr. Fletcher, mentioned in Bulletin ii of the 

 Central Experimental Farm of Canada, May, 1891. The insect was not 

 identified by Mr. Fletcher. He has simply published of it: "This is 

 the maggot of a small black fly which lays a single egg in the axil of one 

 of the upper leaves. The young maggot bores down the stem until full 

 grown, and then changes to a brown puparium inside the stem." On 

 request made to Mr. Fletcher for any additional knowledge that he may 

 have subsequently secured of it, he has kindly replied : 



" I am sorry to say that I have never had another opportunity to- 

 study the Anthomyian in ra=;pberry canes. I have never found it except 

 in one garden here [Ottawa], where it occurs intermittently, and has not 

 been abundant since I first observed it, until last year, and then unfor- 



