NORTH AMERICAN BUPRESTID BEETLES 307 



Type locality.— Of lacustris, La Pointe, Wis., Lake Superior ; type 

 in Museum of Comparative Zoology, at Cambridge, Mass. Of cuneus, 

 Texas, no definite locality given; type in the Ulke Collection, in the 

 Carnegie Museum at Pittsburgh. Of pubiventris, Texas, no definite 

 locality given; cotypes in the Philadelphia Academy of Natural 

 Sciences, and the Museum of Comparative Zoology. 



DISTRIBUTION 



Material examined: 



Arizona: Diamond Creek, White Mountains. June, 1925 (D. Duncan), Santa 

 Rita Mountains, July, 1926 (W. J. Chamberlin). 



California: Delrey (Dr. Clark). San Bernardino County (D. W. Coquiilett). 



Illinois : No definite locality. 



Kansas: Clark County, June (F. H. Snow). Engk-wood, June 23, 1902; 

 Phillips County, July ( ). 



New Mexico: Albuquerque, June 27 (H. F. Wickham). 



Oklahoma: Wichita National Forest, June 6, 1926 (W. J. Brown). 



Texas: Columbus, April-August (Hubbard and Schwarz) (R. A. Cushman). 

 Beeville, October 22 (Hubbard and Schwarz). Austin, July 8; Laredo, 

 May 27; Rockport, August 11 (E. A. Schwarz). Corsicana, June 7 (H. 

 Soltau). Padre Island, June 24, 1914; Victoria, March- July; Point Lavaca, 

 August 21; Edna, July 19, 1908 (J. D. Mitchell). Hempstead, June 15, 

 1907 (C. E. Hood). Trinity, August 30, 1906 (F. C. Bishopp). Willow 

 City, May 26, 1906; Corpus Cbristi, September 22, 1905 (F. C. Pratt). 

 Clarenden, August 11 (W. D. Pierce). Lexington, May, 1909 (Birkmann). 

 Cypress Mills; Fedor, Lee County ( — — ). 



Wisconsin : La Pointe. 



It has also been recorded in the literature from Grimsly, Ontario ; San Jose 

 del Cabo, Lower California; Bellevue and Colorado Springs, Colorado; 

 Pecos and Santa Fe, New Mexico. Chamberlin (1926) records it from 

 Florida and New Jersey, but these records probably refer to imbellfe 

 Crotch. 



Variations. — This species shows considerable variation. The color 

 varies from a bronzy brown, through various shades of bronzy green, 

 with an occasional blue specimen. Sometimes the lateral margins 

 of the head are nearly parallel to each other, the surface with a 

 vague longitudinal groove, and the outer joints of the antennae are 

 frequently wider than long. Usually the pronotum is slightly wider 

 at the apex than at the base, and the sides are obliquely narrowed 

 from the apical angles to the base, sometimes there is an obsolete 

 median depression, and the prehumeral carinae are more or less 

 variable in distinctness. The scutellum may be transversely cari- 

 nate or not, and sometimes the carina is interrupted in the middle. 

 Length 4 to 7.5 millimeters. 



Hosts. — The adults have been taken a number of times by different 

 collectors in Texas on Groton sp., and by Van Dyke in California 

 on white oak (Quercus sp.). Chittenden (1900) records it as having 

 been bred from Croton capitatum in Texas by E. A. Schwarz, but 



