184 MISC. PUBLICATION 4 7 0, U. S. DEPT. OF AGRICULTURE 



and middle tibiae strongly arcuate, the former with a short dilation at apex 

 deeply constricted behind the dilation, the latter expanded at apex; posterior 

 tibia straight. 



Length 10 mm., width 4 mm. 



Redescribed from the male type in the collection of H. C. Fall 

 (Museum of Comparative Zoology). 



Female.— Differing from the male in having the front of the head uniformly 

 brownish cupreous, slightly more complex, and more sparsely pubescent, the 

 prosternum more sparsely punctured and pubescent, the last visible sternite 

 more elongate, with a small, narrow, angular notch at apex, and a more or 

 less distinct, dentate, subapical ridge, the eighth tergite more coarsely punc- 

 tate, and slightly emarginate at apex, the anterior tibia unarmed at apex, 

 and the middle tibia straight. 



Type locality. — Boulder, Colo. 



DISTRIBUTION 



From material examined: 



Akizona: Prescott, June 1917 (Barber and Schwarz). 



Colorado : Leadville, Boulder, type, Silver Plume, Buena Vista, Colorado Springs, 



Salida, Florissant, Waldo Canyon, Mt. Manitou, and Larkspur, June to 



August (numerous collectors). 

 Montana: Chico, August 9, 1907 (W. Robinson). 

 New Mexico: Capitan, April 28, 1907, reared; Meek, April 24, 1907, reared 



(W. F. Fiske). Vermego, May 8, 1903 (A. D. Hopkins). Roswell, April 



14; Santa Fe, June (T. D. A. Cockerell). 

 South Dakota: Elmore, July 23, 1902 (J. L. Webb). Hot Springs (H. F. 



Wickham). 

 Texas: Davis Mountains, April 10, 1907. 

 Utah: Eureka, June 27 (Tom Spnlding). 

 Wyoming: Yellowstone National Park (H. F. Wickham). 



Also recorded in the literature from: 

 Alberta: Banff, July 2, 1915 (Gibson 1917). 

 British Columbia: Peachland, July 22, ]915 (Gibson 1917). 

 Idaho: Cascade, June 20 (Chamberlin 1926). 

 Oregon: Eastern part (Chamberlin 1925). 



Some of these records may be from wrongly identified specimens. 



Hosts. — Specimens have been examined that were reared from west- 

 ern yellow pine (Pinus ponderosa Lawson), limber pine (Pinus 

 flexilis James), pinon {Pinus edulis Engelmann), and Douglas fir 

 (Pseudotsugae taxifolia (LaMarck) Britton). Burke (1918) records 

 this species as mining the bark and sapwood of dying and dead trees. 

 Chamberlin (1926) records it from lodgepole pine {Pinus contorta 

 Loudon). 



The sculpture on the dorsal surface of the body is rather constant, 

 but the color in the depressed areas varies from bronzy green to 

 purplish cupreous. Sometimes the anterior margin of the pronotum 

 is slightly lobed, and the sides are sinuate and parallel at the middle. 

 Frequently there are two small, smooth callosities on the front of 

 rhe head, and the clypeus is sometimes triangularly emarginate in 

 front. The length is from 8.5 to 12 mm. 



(81) Chrysobothris laricis Van Dyke 



(Fig. 77; fig. 122, D) 



Chrysobothris laricis Van Dyke, 1916. Ent. News 27: 409-411, fig. 3; Chamberlin, 

 1917, Ent. News 28: 138; Van Dvke, 1918, Ent. News 29: 58; Chamberlin, 

 1925, N. Y. Ent. Soc. Jour. (1924) 32: 192 (separate, p. 191) ; 1926, Cat. 

 Buprestidae North Amer., p. 159; 1929, Pan-Pacific Ent. 5: 115; Obenberger, 

 1934, in Junk (pub.), Coleopt. Cat., pt. 132, p. 638; Chamberlin, 1934, Pan- 

 Pacific Ent. 10: 42, fig. 16. 



