A REVISION OF NORTH AMERICAN CHRYSOBOTHRINI 193 



DISTRIBUTION 



From material examined: 



Caufoknia: Carrville, Trinity County, June 30, 1913, paratype (E. C. Van Dyke). 



Onion Valley, July 29, 1913 (H. E. Burke). Yosemite, May 19, 1931, 3,880 to 



4,000 feet altitude (E. G. Linsley). Fallen Leaf, July 28, 1915 (F. B. 



Herbert). Dos Rios, Mendocino County, May 28, 1939 (W. F. Barr). 

 Idaho: No definite locality. 



Nevada: No definite locality (Riley Collection). 

 Oregon: Crater Lake, December 14, 1933 (W. J. Buckhorn). Ashland, July 3, 



1917 (T. E. Snyder). 



Also recorded in the literature as follows : 



California: Fallen Leaf Lake; Lake Tahoe, June (Van Dyke 1916). Weed, 



August 11, 1915 (Chamberlin 1917). 

 Idaho: Coeur d'Alene, July (Bedard 1938). 

 Oregon: Mount Hood (Van Dyke 1926). 



Van Dyke (1916) states that the species is apparently moderately 

 abundant in northern California and the northern Sierras, and no 

 doubt extends farther north. It apparently is one of the species 

 which replace carinipennis LeConte west of the Cascades and Sierras, 

 carinipennis seeming to be restricted to the Rockies and the northern 

 portion of the Great Basin. 



Hosts. — Bedard (1938) records the females as ovipositing in Doug- 

 las fir (Pseudotsuga taxifolia (LaMarck) Britton). The adults have 

 been collected on white fir {Abies concolor Lindley and Gordon), 

 lowland white fir (Abies grandis Lindley), western yellow pine 

 (Pinus ponder osa Lawsonj, Jeffrey pine (Pinus jeffreyi "Oreg. 

 Com."), and mountain hemlock (Tsuga mertensiana (Bongard) 

 Sargent). 



The color in the punctured areas on the dorsal surface of the body 

 varies from reddish cupreous to bronzy green. Sometimes the prono- 

 tum is widest near the apical angles, with the sides rounded anteri- 

 orly, and obliquely converging from near the apical angles to the 

 posterior angles. In a few of the specimens examined the lateral cal- 

 losities on the abdominal sternites were distinctly indicated. The 

 length is from 10 to 13 mm. 



It is very difficult to separate this species from carinipennis. The 

 male genitalia in pseudotsugae are more slender, with the sides of 

 the median lobe strongly, obliquely narrowed to the apex, which is 

 rather acutely rounded, whereas in carinipennis the genitalia are dis- 

 tinctly broader, with the sides of the median lobe slightly narrowed 

 to the apex, which is broadly rounded. The dilation on the anterior 

 tibia of the male of carinipennis is at lesst twice as long as wide, but 

 in pseudotsugae the dilation is not twice as long as wide, and the tibia 

 is more strongly constricted behind the dilation. The smooth spaces 

 on the elytra are usually broader in pseudotsugae than in carini- 

 pennis. So far the writer has been unable satisfactorily to separate 

 the females of these two species. 



(85) Chkysobothris libonoti Horn 

 (Fig. 81 ; fig. 123, B) 



Chrysobothris libonoti Horn, 1886, Amer. Ent. Soc. Trans. 13: 104, 108, pi. 6, 

 figs. 193-197 ; Kerremans, 1892, Soc. Ent. de Belg. Mem. 1 : 216 ; Chamberlin, 

 1926, Cat. Buprestidae North Amer., p. 160; Obenberger, 1934, in Junk 

 (pub.), Coleopt. Cat, pt. 132, p. 639. 



416206 — 42 13 



