10 PKOCEEDINGS OF THE NATIONAL MUSEUM vol. 82 



because it is of the same red color as the segment, and the one on 

 second entirely lacking. 



Length, 8-11 mm. 



Originally described from Pennsylvania and Virginia. Material 

 examined by me is from the following localities : Alabama, no other 

 data ; Fort Montgomery, N. Y., August 10, 1923 ( F. M. Schott ) , a 

 female with very dark, almost black, petiole; Huntington, Long 

 Island, N.Y., August 19, 1917 (F. M. Schott), and a female without 

 date, " on Bidens " (Bridwell) ; Plummers Island, Md., August 17, 

 1907 (A. K. Fisher) ; Glen Echo, Md., July 23, 1921, July 30, 1922, 

 and August 30, 1923 (J. K. Malloch). 



The specimens taken by me were swept from trees and bushes over- 

 hanging paths through the woods. 



The female specimens with blackish red petiole can readily be dis- 

 tinguished by the rather coarsely striate punctate scutellum. 



PSEN (PSENEO) SIMPLICICORNIS Fox 



Psen simpUcicornis Fox, Trans. Amer. Ent. Soc, vol. 25, p. 10, 1898. (Male and 

 female.) 



Mr. Rohwer has reported upon the characters of the type speci- 

 mens and before me there is a female labeled by him as a homotype. 

 He also notes that though the first locality mentioned by Fox is 

 Virginia, it is the male which is from that State, and being the last 

 to be described consequently this sex is the allotype, not the type. 



The male is readily distinguished from that of kohlii by the 

 darkened tibiae and black abdominal petiole. The tarsi are normally 

 as pale as in hohlii, and the second flagellar segment has no raised 

 line, but the third segment has the raised part more prominent and 

 darker than in kohlii. The scutellum in the female is quite definitely 

 longitudinally striato-punctate in kohlii, while in the present species 

 it is sparsely punctate as in the male. 



Length, 8-11 mm. 



Originally described from North Carolina and Virginia. I have 

 examined specimens from the following localities: Harrisburg, Pa., 

 a series of reared specimens, Wetzels Swamp, September 1908 and 

 April 1909 (P. R. Myers), and one specimen, same locality, November 

 12, also reared (G. M. Greene) ; Mount Holly, Pa., June 14, 1921 

 (Champlain and Knull) ; Beltsville, Md., August 6, 1916 (W. L. 

 McAtee) . 



PSEN (PSENEO) PUNCTATUS Fox 



Psen punctatus Fox, Trans. Amer. Ent. Soc, vol. 25, p. 9, 1898. (Female.) 



I have before me a specimen which was compared with the type 

 and is labeled homotype by Mr. Rohwer, and several specimens which 



