1921] Van Duzee — A Few North American DoUchopodidw 120 



Wings (fig. 7) grayish; third vein hent backward at tip; last 

 section of fourth vein bent at its basal third, approaching third, 

 but bending back a little toward its tip so as to be parallel with 

 third vein for its apical third and ending in the apex of the wing ; 

 last section of fifth vein twice as long as the cross-vein; anal angle 

 of wing rounded but rather prominent. 



Female: Like the male in general color and the form of the 

 wings. The face is not very wide and is hollowed out almost to its 

 lower edge ; face and front wholly silvery- white, proboscis narrowly 

 blackish on the edge, which is fringed with quite conspicuous black 

 hairs. Ovipostor yellowish with a circlet of short, blunt spines at 

 tip. Fore tarsi blackened from the tip of the first joint; their 

 second joint about three-fourths as long as the first. 



This female is easily recognized by its venation, together with the 

 silvery front and yellow proboscis and ovipostor. 



Described from many males and females. I took them in Wil- 

 liamsville, Erie County, N". Y., August 8 and 29, 1920. Mr. Burns 

 took many at the Palisades, jST. J., July 5, 1920. 



Holotype and Allotype in the author's collection and taken at 

 Williamsville, ¥. Y. 



Those I took were flying around the surface of the water which 

 was running over the rocks, and resting on the moss and rocks in 

 the little falls, very much as does Liancdlus. The very short hypo- 

 pygium would almost separate this species from Paraclius, but it is 

 entirely disengaged although sessil and extends a little under the 

 venter. 



Paraclius ovatus Van Duzee. 



This is the same as Paraclius venustus Aldrich, and is therefore 

 a synonym of that species. Dr. Aldrich reports it as abundant iu 

 the West Indies and Mexico. I have seen specimens from Georgia 

 and Costa Eica. 



