222 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



ber.) Oklahoma (Fort Supply, Coll. H. S. Barlber.) AVyoming 

 (Cheyenne, June, Colls. Hubbard and Schwarz). Xebraska (Sand 

 Hills, September, Coll. C. V. Kiley). 



Forma nupta. — Oklahoma (Fort Supply, Coll. H. S. Barker; Texas 

 (Alice, E. A. Schwarz; Fort Creek, E. A. Mearns; San Diego, April 

 and ]Ma3% Hubbard and Schwarz ; Goliad County, October, J. D. 

 Mitchelf). 



Forma sculptilis. — Arizona (Walnut, July, H. F. Wickham; Oracle, 

 July, Coll. Hubbard and Schwarz; Williams, May, Coll. Barber and 

 Schwarz ; Fort Grant, July, Coll. Hubbard and Schwarz ; Ash Fork, 

 June; Yuma, Chas. Fuchs). New Mexico (Las Vegas, August, Coll. 

 Barber and Schwarz). Colorado (Denver, May, Coll. Dyar and 

 Caudell). Utah (Salt Lake City, April, Coll. H. Soltau). Cali- 

 fornia (northeastern. Coll. Hubbard and Schwarz). Wyoming 

 (Cheyenne, May, II. Soltau; June, Hubbard and Schwarz). Mon- 

 tana (Helena, May, Henry Ulke, Hubbard and Schwarz). Mexico 

 (Cananea, district of Arizpe, State of Sonora, elevation 4,500-G,000 

 feet. Dr. W. C.Alvarez). 



Forma elongata. — Arizona (Coll. Beverly Letcher, Prescott). 



Forma convexa. — Texas (Prairie Paso, Doctor Cooper). 



Forma laevis.- — Utah (Salt Lake, June, Coll. Hubbard and 

 Schwarz). State of Washington (Walla Walla, Charles Fuchs). 



Diagnostic cliaraeters. — Hispilahris is recognized from the mem- 

 bers of the Obscura Group b}- the prominent dentiform apical angles 

 of the prothorax and by the simple tarsi; from all species of the 

 subgenus Elcodcs hy the more or less deeplv sulcate elytra Avith con- 

 vex intervals, and in never being caudate. 



I consider the typical form to have more or less depressed elytra, 

 the latter with the intervals feebly to moderately convex and fre- 

 quently reddish along the suture ; the integuments are generally thin- 

 ner than in the other forms. 



The five incipient races which I have recognized are simply ex- 

 tremes along particular lines of divergence in the ample series before 

 me, and they are all united into one continuous series by an abundance 

 of mesotypes. 



They ought to be readily recognized by the brief diagnoses that I 

 have given. Their salient characteristics may be epitomized as 

 follows : 



Nupta with its strongly convex and more or less ventricose el}' tra. 

 Integuments as in typical hispilahris. 



/Sculptilis with the elytral intervals very strongly and prominently 

 convex, with the sulci deep and opaque. Denser integuments. 



Elongata by its elongate and moderately convex form, elytral 

 intervals more or less moderated convex. Black and denser integu- 

 ments. 



