April, '14] HEWITT: WARBLE FLY 195 



cial lime-sulphur solution testing 27° Baume, and with "Black Leaf 40"" 

 and soap, the tobacco extract being in the proportion of 1 to 1000. 

 The lime-sulphur solution killed many of the thrips, but the "Black 

 Leaf 40" was distinctly more effective, destroying practically all of the 

 insects. The spraying was done on July 9, 1912. 



At Bozeman this thrips is more particularly a gooseberry pest, 

 but currants are frequently attacked. Of the two currants mentioned, 

 the black species (Ribes nigrum) is distinctly preferred. As a common 

 name for this insect we propose "The Currant Thrips. " 



President P. J. Parrott: These insects discussed in this paper 

 are examples of the surprises that attend the work of the entomologist. 

 Recently our attention has been called to a snout-beetle that has never 

 been recorded as being of economic importance, but which occurs on 

 sandy soils in New York where peaches are grown. It appears in the 

 spring and feeds on the young leaves of the peach. During some 

 seasons it causes quite a little injury to young peach trees. 



Adjournment. 



Afternoon session, Thursday, January 1, 1.30 p. m. 



President P. J. Parrott: Dr. C. Gordon Hewitt will present the 

 first paper on "The Occurrence of the Warble Fly {Hypoderma bovis), 

 in Canada." 



THE OCCURRENCE OF THE WARBLE FLY (HYPODERMA 



BOVIS), IN CANADA 

 By C. Gordon Hewitt, Ottawa, Can. 



(Withdrawn for publication elsewhere.) 



Mr. Herbert Osborn: Have there been any recent importations 

 from Europe? 



Mr. C. Gordon Hewitt: I don't know. Of course, we are receiving 

 cattle from Europe all the time. 



President P. J. Parrott: Do you know anything about the dis- 

 tribution of H. bovis in the United States? 



Mr. C. Gordon Hewitt: Except for the reference of Johnson of 

 its occurrence in Vermont, I know of no other records. My object in 

 presenting this short paper is to have the entomologists in the United 

 States on the lookout for this insect. The species in the United States 

 has always been referred to as lineata. 



President P. J. Parrott : The next paper is by Dr. H. T. Fernald, 

 on "Control of the Onion Thrips and Onion Maggots." 



