58 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



fine, yellowish white pubescence; prosternal lobe broad, moderately 

 declivous, and broadly, rather deeply emarginate in front ; prosternal 

 process rather wide, gradually narrowed to the apex, which is acute, 

 and the surface sometimes with a more or less distinct longitudinal 

 elevation. Posterior coxae with the posterior margin broadly, arcu- 

 ately emarginate, and the exterior angle rectangular. Tibiae slender, 

 {he anterior pair distinctly arcuate; anterior and middle pairs armed 

 with a distinct curved tooth on the inner margin at apex; posterior 

 tibiae without tooth at apex. Posterior tarsi as long as the tibiae, and 

 the first joint as long as the following joints united. Tarsal claws 

 similar on all the feet, cleft at the middle, the outer tooth acute at 

 apex, the inner one slightly broader, turned inward, and the tip 

 sometimes touching that of the opposite side. 



Length, 6.25 mm. ; width, 1.5 mm. 



Female. — Differs from the male in having the front of head cupre- 

 ous, broader, lateral margins more parallel, and the surface less 

 densely punctate; prosternum without long pubescence, the pro- 

 sternal process flat; first two abdominal segments not flattened or 

 sulcate; the tibiae unarmed at apex, and the posterior tarsi scarcely 

 as long as the tibiae. 



Redescribed from the male lectotype No. 3476 in the Academy of 

 Natural Sciences, Philadelphia. 



Type locality. — Illinois. 



DISTRIBUTION 



Material examined: 



Canada: Montreal Island, June (Chagnon). 

 Connecticut: Putman (D. J. Caffrey). 



District of Columbia: Washington (Hubbard and Schwarz). 

 Illinois: Galesburg, July (Stroniberg). 



Indiana : Marion County, July 16, 1920 ( ) . 



Iowa: Iowa City, June 3 (Buchanan). 



Kansas: Osage County, June 15 (R. H. Beamer). 



Massachusetts: Mount Tom and Tynsboro (Blanchard). 



Michigan: Detroit, June (Hubbard and Schwarz). 



Missouri: St. Louis, May 12, on box elder (J. T. Monell). 



New York: Olcott, July 4 (Dietrich) ; Nassau, June 22, Pike, Newport, Buffalo, 



and Cranberry Lake ( ). 



Ohio: Columbus, Cincinnati (Dury). 



Pennsylvania : Harrisburg, April -June ; Hummelstown, May 9-July 2 ; Charter 



Oak, June (Knull). 

 South Carolina: Clemson College, May 13 (J. O. Pepper). 

 South Dakota : No definite locality. 



Texas: Columbus, May 6-23 ( ). 



Virginia: Tazewell, June 9 (L. O. Jackson). 

 Wisconsin: Beaver Dam, June 25 (W. E. Snyder). 



Also recorded from: 



New Hampshire: Mount Washington (Slosson). 

 New Jersey: Newark (Weiss). 



