140 MJS€, PUBLICATION 47 0, U. S. DEPT. OF AGRICULTURE 



sinuate, with an indistinct, broadly rounded, median lobe; base arcuately emar- 

 ginate on each side, median lobe slightly produced and broadly rounded ; disk 

 uneven, with numerous irregular, smooth spaces ; surface coarsely, irregularly 

 punctate between smooth spaces, clothed with a few erect hairs at sides. 



Elytra slightly wider than pronotum, twice as long as wide, widest behind mid- 

 dle ; sides slightly diverging from humeral angles to behind middle, then arcu- 

 ately converging to tips, which are separately narrowly rounded ; lateral margins 

 coarsely serrate ; basal depression broad and shallow ; humeral depressions small 

 and shallow; surface glabrous, densely, coarsely, irregularly punctate between 

 elevated, smooth spaces. Each elytron with a longitudinal costa near sutural 

 margin, costa strongly elevated on apical half, becoming broader toward base, with 

 numerous large, transverse, irregular, elevated, smooth spaces, and with a large, 

 more or less distinct, transverse fovea at apical third, and a vague one just in 

 front of middle. 



Abdomen beneath strongly flattened, sparsely, coarsely, irregularly punctate, 

 sparsely clothed with short, semierect, inconspicuous hairs, and with distinct 

 lateral callosities, the intervals densely, finely granulose ; last visible sternite 

 deeply, semicircularly emarginate at apex, with a serrate submarginal ridge, 

 lateral margins coarsely serrate ; eighth tergite densely granulose, coarsely, 

 sparsely punctate, slightly notched at apex. Prosternum coarsely, connuently 

 punctate, densely clothed with long, erect, white hairs ; anterior margin with a 

 distinct, narrow, median lobe. Anterior femur with a short, obtuse tooth, which 

 is coarsely dentate on outer margin. Anterior tibia strongly arcuate, with a 

 large, acute tooth at apical fourth ; middle and posterior tibiae straight. 



Length 9 mm., width 3.5 mm. 



Eedescribed from the male type in the collection of W. J. Cham- 

 berlin. 



Female. — Differing from the male in having the head uniformly reddish cup- 

 reous, with a faint golden tinge, and more sparsely pubescent, the antenna 

 uniformly brownish cupreous, the eighth tergite connuently punctured and broadly 

 rounded at apex, the prosternum sparsely, coarsely punctured and sparsely 

 pubescent, and the anterior tibia unarmed at apex. The emargination at the 

 apex of the last visible sternite is similar in both sexes. 



Type locality. — Big Basin, San Mateo County, Calif. 



Distribution. — Only six specimens (including the type) were ex- 

 amined by the writer, all of which were collected at the type locality. 



Host. — All the specimens examined were reared from knobcone pine 

 (Pinus attenuata Lemmon) collected by H. E. Burke. Chamberlin 

 records them as having been reared from Jeffrey pine (Pinus jeffreyi 

 "Oreg. Com.") , which is incorrect. 



The pronotum is more cupreous or greenish in some specimens, 

 and the color on the lower part of the head in the males varies from 

 bluish green to golden green. In one specimen examined the longi- 

 tudinal carina on the head is not bifurcate anteriorly, and the callos- 

 ities on the front of the head are absent. The sides of the pronotum 

 usually converge from the apical third to the posterior angles, but 

 in one specimen the sides are parallel and sinuate at the middle. The 

 length is from 6.5 to 9.5 mm. 



(59) Cheysobotheis subopaca Schaeffer 



Chrysobothris subopaca Schaeffer, 1904, N. Y. Ent. Soc. Jour. 12 : 208 ; Chamber- 

 lin, 1926, Cat. Buprestidae North Amer., p. 173 ; Obenberger. If 34, in Junk 

 (pub.), Coleopt. Cat, pt. 132, p. 653. 



"Elongate, slightly depressed, color green, each elytron with an elongate irregu- 

 lar purple spot at apical third, surface subopaque, beneath shining green. 

 Antennae aeneo-cupreous, third joint a little longer than fourth, front slightly 

 convex, with a faint chevron ; clypeus triangularly emarginate : thorax twice as 

 wide as long, arcuate at sides, disk convex, a moderately deeply impressed line 

 at middle, a vague median impression at sides near margin, somewhat coarsely 



