304 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



cent than ventral surface, pygidium sparsely, coarsely punctate and 

 with a feebly elevated, longitudinal carina, which does not project 

 posteriorly. Prosternum finely, densely punctate, and sparsely 

 clothed with short, recumbent, whitish pubescence; prosternal lobe 

 narrow, strongly declivous, and broadly, vaguely emarginate or sub- 

 truncate in front; prosternal process broad, the sides parallel to the 

 apex, which is truncate. Tibiae slender, straight, and without a dis- 

 tinct tooth at apex. Posterior tarsi nearly as long as the tibiae, and 

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

 similar on all feet, cleft near the middle, the inner tooth shorter than 

 outer one, and not turned inward. 



Length, 8 mm. ; width, 2.25 mm. 



Male. — Differs from the female in having the front of head slightly 

 narrower, the lateral margins slightly more expanded above middle, 

 and the surface more densely punctured, and densely clothed with 

 long, recumbent, whitish pubescence; first and second abdominal seg- 

 ments broadly but not deeply, longitudinally sulcate at middle ; pro- 

 sternum densely clothed with long, erect, whitish pubescence, which 

 extends along middle of body to second abdominal segment, and the 

 anterior and middle tibiae armed with a short tooth on inner margin 

 at apex. 



Kedescribed from the female type in the Museum of Comparative 

 Zoology. 



Type locality. — Texas. (No definite locality given.) 



DISTRIBUTION 



Material examined : 



Kansas: Grove, Hamilton, and Clark Counties, June (F. H. Snow). Scott 

 County, June (H. Deay). Wallace County, June (Popenoe). Belvidere 

 (W. Knaus). Garden City, June 2, 1900 ( ). 



Oklahoma: Stillwater (A. N. Caudel,l). Walter, May ( ). 



Texas: Brownsville ( ). Lexington, April-May (Birkmann). Fedor, June 



( ). Victoria, April-May ; Childress, June 8, 1906 ; Goliad County, March 



25, 1907 (J. D. Mitchell). Wharton, April 18, 1905 (W. W. Yothers). Hand- 

 ley, April 27, 1905 ; College Station, March 16, 1907 (W. D. Pierce). Calvert, 

 April 8, 1907 (C. R. Jones). Hempstead, April 24, 1904 (F. C. Bishopp), 

 Gainesville, May 11, 1922 (E. E. Russell). Hallettsville, March 18, 190S 

 (C. E. Hood). Cypress Mills ( ). 



Chamberlin (1926) records it from Colorado, hut no examples have been seen 

 from that State. 



Variations. — The color is usually plumbeus, but occasionally speci- 

 mens are found that are slightly cupreous brown and more shining. 

 The sides of the pronotum are more or less variable in shape, and the 

 median depression is entirely absent in some examples. The pre- 

 humeral carinae are at most only feebly indicated, and specimens 

 occur without any trace of it. Length 4.75 to 9 millimeters. 



