I40 The Ohio Naturalist. [Vol. VII, No. 7, 



Physocephala furcillata Williston is a notable species of the 

 family Conopidae. It appears to be strictly northern in its 

 distribution. 



It is interesting to note that just half of the species have 

 blood-sucking females, while at least four are parasitic and two 

 are predaceous. 



Following is a full list of species exclusive of the Syrphidae: 



Simuliun venustum Say, Heyden. 

 Stratiomyia badius Walker, Searchniont. 

 Chrysops carbonarius Walker, Searchmont. 

 Chrysops excitans Walker, Heyden. 

 Chrysops frigidus Osten Sacken, Searchmont. 

 Chrysops niger Macquart, Heyden. 

 Chrysops striatus Osten Sacken, Oden, Michigan. 

 Tabanus microcephalus Osten Sacken, Heyden. 

 Tabanus nivosus Oster Sacken, Heyden. 

 Spogostyluni pluto Wied., Heyden. 

 Anthrax lateralis Say, Searchmont. 

 Laphria terrae-novae Macquart, Heyden. 

 , Promachus bastardii Macquart, Heyden.- 



Physacephala furcillata Will., Oden, Michigan. 

 Echinomyia algens Wie:l., Sault Ste. Marie. 

 Echinomyia decisa Walker, Oden, Michigan. 

 Panzeria radicum Fabr., Oden, Michigan. 

 Phortica alboguttata Wahl. Searchmont. 



Syrphidae, by Dr. R. C. Osburn. 



Syrphus ribesii (Linne). Heyden and Searchmont. 



grossulariae Meigen. Heyden and Searchmont. 

 Sphaerophoria cylindrica (Say), Searchmont. 

 Sericomyia inilitaris Walker. Heyden and Searchmont. 

 Eristalis tenax (Linne). Searchmont. 



meigenii Wiedemann. Soo. 



bastardi Macquart. Oden, Mich. 



flavipes Walker. Heyden and Searchmont, Oden, Mich. 



transversus Wiedemann. Heyden. 

 Helophilus similis Macquart. Oden, Mich. 



chrysostomus (Wiedemann). Oden, Mich, 

 conostomus Williston. Heyden. 

 Mallota cimbiciformis (Fallen). Heyden. 

 Temnostoma aequalis Loew. Heyden. 



The above list of Syrphidae is a rather characteristic late 

 summer list, and all the species are fairly common except the 

 last which deserves some mention. Temnostoma aequalis has 

 been recorded from three widely separated localiites, the White 

 Mountains, the English River of Hudson's Bay Terr, and Colo- 

 rado,* but can byno means be considered a common species. In 

 ten years of collecting in Ohio, N. Dakota, Br. Columbia, N. Y., 

 and Mass., the writer has not met with it. The present record is 



* In writing the above I overlooked the fact that the species has been 

 recently recorded for Minnesota (by name only). Tenth Ann. Rep't 

 State Entomologist of Minn., Dec, 1905, bv. F. L. Washburn. 



