THE CANADIAN ENTOMOLOGIST. 137 



places. I did not observe them in the more heavily wooded 

 portions. 



STRATIOMVIDiE. 



Stratiomyia obesa, Loew. Not rare, on flowers. 



TABANID^. 



Chrysops callidus, O. Sacken. Not uncommon in woods. 



II fugax, O. Sacken. Common. 

 Therioplectes socius, O. Sacken. Rare, one ,^ taken on blossoms of an 

 umbelliferous plant, July. 

 I' septentrionalis ? Loew. 



ti lasiophthalmus, Macq. May 19, 1877. 



Tabanus catenatus, Walk. Rare, one specimen taken resting on a stone 

 by the river side, Lachine, July 15, 1877. 



LEPTID^. 



Leptis punctipennis, Say. 



ASILID^. 



Dasyllis flavicollis, Say. 



11 thoracica. Fab. Not common, open woods, July. 

 Laphria bilineata. Walk. Rare. 



1. gilva, Wilstn. Rare. 



BOMBILID/E. 



Anthrax alternata, Say. 



11 fulviana, Say. 



11 sinuosa, Wied. 

 Bombylius fratellus, Wied. Common on the border of a birch wood, 

 Hochelaga, May 6. 1877. 



THEREV1D.E. 



Thereva candidata, Loew. 



SCENOPINID/E. 



Scenopinus fenestralis, Linn. 



SYRPHID/E. 



Chrysotoxum ventricosum, Loew. Rare. 

 Syrphus ribesii, Linn. Common. 

 Sphaerophoria cylindrica, Say. 

 Xanthogramma flavipes, Loew. 

 Rhingia nasica, Say. Not uncommon. 

 Volucella evecta, Walk. Not rare. 

 Sericomyia chrysotoxoides, Macq. Rare. 

 M militaris, Walk. Not common. 



