1 66 ENTOMOLOGICAL NEWS [Apr., '17 



Notes on some Buprestidae of Northern Califor- 

 nia (Col.). 



By W. J. CHAMBERLIN, Forest Entomologist, Oregon State Col- 

 lege, Corvallis, Oregon. 



(Continued from page 139) 



44. Polycesta californica Lee. 



Found throughout the oak region of California, though 

 never common. It has been taken from dead black oak 

 (Quercus kelloggii) in Trinity County, Yosemite Valley and 

 Mariposa County ; also taken from Quercus douglasii. 



45. Chrysophana placida Lee. 



Found throughoiit the coniferous area of northern Califor- 

 nia and the Sierras, also* well distributed over western Oregon, 

 and no doubt extends into Washington, since the writer has 

 taken it 35 miles south of the Columbia River. Dr. Van Dyke 

 has one specimen bred from the cones of P. ponderosa. Mr. 

 Miller, of the Ashland Station, has bred it from the cones of 

 Pinus attciv.iaia. Its common host plant is Douglas fir, but it 

 also breeds in the upper part of small lodge pole, yellow and 

 knob-cone pine, and in the edges of fire scars of Abies concolor 

 and A. magnified. 



There are three phases : a striped phase, which is the more 

 common, and is often taken in open fields on flowers in south- 

 ern Oregon ; an all-green variety, which occurs at higher ele- 

 vations of the middle and southern Sierras, and which the 

 writer has taken at Corvallis, Oregon ; the third variety is un- 

 striped, of a dark bronze or black color, and very scarce. 



Dr. E. C. Van Dyke, of the University of California, has 

 very kindly furnished me with his own notes on the hosts, etc., 

 of species he has taken in the northern part of the State. I 

 wish, particularly, to express my indebtedness to Dr. Van 

 Dyke for his notes on the genus Acmaeodera; practically all 

 the information on that genus is due to his observations, since 

 I have personally come in contact with but two species, A. 

 vandykei and A. conne.va. 



46. Acmaeodera angelica Fall. 



"Generally to be found flying about brush or in the flowers 



