357 



alongside streams. I have seen a specimen which was taken on Plum- 

 mer's Island, Md., May 8, 1914, by W. L. McAtee. 



Originally described from a female taken at Riverton, N. J. 



9. Probezzia smithi Coqiiillett 



Ceratopogon smithii Coquillett, Proe. U. S. Nat. Mus., Vol. 23, 1901, p. 600. 

 Probe::2ia smithi (Coquillett) Malloch, Proe. Biol. Soe. ^Vash., Vol. 27, p. 138. 



Dififers from clcgans in color as indicated in table. There are no 

 outstanding structural differences in the two species. 



Illinois locality, Monticello, June 28, 1914 (J. R. Malloch). 

 Taken by sweeping vegetation along the banks of the Sangamon River. 



The male is unknown. 



10. Probezzia opaca Loew 



Ceratopogon opocus Loew, Berl. Ent. Zeitschr., 1861, p. 312, sp. 9. 

 Frohezsia opaca (Loew) Malloch, Proe. Biol. Soe. Wash., Vol. 27, p. 138. 



I have not seen this species. It is structurally close to incerta, fill- 

 z'ithorax, and ohscura. Described from Washington, D. C, and not 

 subsequently recorded. 



Mr. C. W. Johnson has kindly examined the type specimen in Cam- 

 bridge and reports that it is light brown, eyes apparently separated, 

 although the head is greatly shrunken. Antennae about as long as 

 thorax. Legs light yellow, very narrowly darkened at the tips of the 

 femora, tibiae, and tarsal joints. Mr. Johnson's sketch of the wing 

 show's the first vein extending to less than one fifth the length of 

 third, but otherwise similar to fukitlwrax. 



II. Probezzia BiviTTATA Coquillett 



Ceratopogon bivittatits Coquillett, Jour. N. Y. Ent. Soe., Vol. 13, 1905, p. 60. 

 Frohezzia bivittata (Coquillett) Malloch, Proe. Biol. Soe. Wash., Vol. 27, p. 138. 



I have not seen this species. It was originally described from Eu- 

 reka, Calif. The male is unknown. 



12. Probezzia gibber Coquillett 



Ceratopogon gibber Coquillett, Jour. N. Y. Ent. Soe., Vol. 13, 1905, p. 60. 

 Frobezzia gibber (Coquillett) Malloch, Proe. Biol. Soe. Wash., Vol. 27, p. 138. 



I have not seen this species. Originally described from Cayamas, 

 Cuba. The male is unknown. 



