THE CANADIAN ENTOMOLOGIST 69 



TACHINID.^ AND SOME CANADIAN HOSTS. 



BY J. D. TOTHILL, DIVISION OF ENTOMOLOGY, OTTAWA, ONT. 



In working over the Tachinidse in the collection of the 

 Division of Entomology, at Ottawa, a number of breeding records 

 were encountered. Thirty-nine of these are new, in so far as the 

 writer is aware, and these form the basis of the present list. In 

 addition to these thirty-nine, there are seven that have been pub- 

 lished since the appearance of Coquillett's "Revision of the 

 Tachinida? of America, north of Mexico," and Aldrich's "Catalogue 

 of North America Diptera." These seven are included in the 

 present list; they are indicated by an asterisk (*), and reference is 

 made in each case to the published record. 



The majority of these records were obtained by Dr. James 

 Fletcher and Mr. Arthur Gibson. To the latter colleague, whose 

 kindly assistance has made possible the compilation of the present 

 list, the writer is under numerous obligations. The letters J. F. 

 or A. G. placed in brackets after the species indicate the person 

 who was responsible for the rearing. A few records were obtained 

 by others than the above; in these cases the names or initials of 

 the persons responsible for the rearing are given. 



No doubtful records are included in the list. The arrange- 

 ment follows that of Mr. D. W. Coquillett in the excellent list of 

 tachinid flies and their hosts contained in his "Revision" (loc. 

 cit., p. 9). 



PARASITES. HOST INSECTS. ' 



BUpharipeza adiista Loew Halisidota carycB Harris. — Bred 



from cocoons of host collected 

 at Ottawa; 11 specimens, is- 

 sued June 16-July 4. (A. G.) 



Halisidota maculata Harris. — 

 Bred from cocoons of host 

 collected at Ottawa; 1 speci- 

 men. (A. G.) 



Malacosoma dis stria Hubn. — 

 Bred at Fredericton, N. B., 

 from larvae and pupae collected 

 locally and at Ottawa; numer- 



March, 1913 



