132 The Ottawa Naturalist. [October 



Helophihis latifrons, Loew. More abundant. 



Helophilus chrysostomus, Wied. Several dead in Cypripediiim blossoms. 



Criorhina analis, Macq. One taken near Hull, June 2nd. 



Baccha fasclpennis, Wied. Two of this slender species ; middle of Au,e;-usf. 



Bracliyopa nolata, O. S. One specimen. 



Microdon tristis, Loew. Rare. 



Sphegina Keeniana, Will. U. S. Nat. Mus. 



Brachypalpus inarmatus, Hunter. U. S. Nat. Mus. 



Ceria abbreviata, Loew. U. S. Nat. Mus. 



Spilomyia 4-fasciata, Say. This fine fly is moderately abundant. 



Spilomyia fusca, Loew. Two only of this large and handsome species. 



Sericomyia militaris, Walk. One specimen only. 



Sericomyia chrysotoxoides, M-icq. Three in July. 



Temnostoma alternans, Loew. Three in June. 



Temnostoma aequale, Loew. One taken near Hull, June 14th. 



Temnostoma bombylans, Fabr. Several in June. 



Volucella evecta, Walk. One specimen. 



Eristalis flavipes, Walk. One specimen, May 31st. 



Eristalis bastardi. Macq. Common during the summer. 



Eristalis tenax, Linn. Also a common species. 



Eristalis dimidiatus, Wied. Less abundant. 



Eristalis Brousi, Will. A few taken in May. 



Pipiza pisticoides, Will. One specimen. 



Tachinid^. 



Ocyptera Carolina, Desv. Common in June and July. 



Ocyptera dosiades, Walk. Several in May and June. 



Cistogaster immaculata. Macq. One specimen July 30th. 



Gymnosoma fuliginosa, Desv. One specimen August 22nd. 



Bombyliomyia abrupta, Wied. Common in July. 



Echinomyia algens, W'ied. One only in my collection. 



Melanophrys insolita. Walk. Common, as is probably the preceding. 



Peleteria tessellata, Fabr. One specimen. 



Frontina Frenchii, Will. One specimen. 



Exorista vulgaris. Fall. One specimen. 



Tachina rustica, Fall. One specimen. These species may all be common. 



Hypostena renea, Coq. U. S. Nat. Mus. 



CEstrophasia clausa, Br. & Berg. U. S. Nat. Mus. 



Exoristoides, n. sp. ? U. S. Nat. Mus. 



Alophora diversa, Coq. U. S. Nat. Mus. 



Sarcophagid.«. 



Sarcophaga Kgra, Walk. One specimen. 



Sarcophaga, sp. Two specimens. 



Helicobia helicis, Town. One specimen. May 24th. 



