NORTH AMERICAN BUPKESTID BEETLES 275 



all of the specimens taken by Schwarz at San Diego are palmacollis, 

 and those from Brownsville are prosopidis, but the specimens are 

 not labeled with the host plant from which they were reared. Prob- 

 ably palmacollis is from the Mesquite as adults have been collected a 

 number of times on that plant. 



95. AGRILUS PROSOPIDIS, new species 

 Figure 71 



Agrilus palmacollis Chittenden, U. S. Dept. Agric, Div. Ent., Bull 22, new 

 ser., 1900, p. 6S (part). — Feost and Weiss, Canad. But., vol. 52, 1920, p. 

 222 (part). — Chamberlin, Cat. Buprestidae, 1926. p. 76 (part). 



Male. — Form small, moderately elongate, slightly flattened above, 

 and rather strongly shining; head bright green, becoming cupreous 

 or aeneous on the occiput, pronotum and elytra dark brown, with a 

 distinct cupreous or aeneous tinge, and the elytra ornamented with 

 more or less distinct pubescent spots ; beneath cupreous, slightly more 

 shining than above, and the legs varying from bright green to 

 bronzy green. 



Head with the front moderately wide, rather strongly convex, 

 slightly wider at bottom than at top, the lateral margins broadly, 

 arcuately constricted below the middle, and without a distinct median 

 groove; surface finely, densely granulose (some of the granules larger 

 and more shining), feebly, sparsely punctate, longitudinally rugose 

 on the occiput, and with a few short, inconspicuous hairs behind the 

 epistoma ; epistoma not transverse between the antennae, and broadly, 

 deeply, arcuately emarginate in front ; antennae extending to middle 

 of pronotum, serrate from the fifth joint, and the outer joints about 

 as wide as long ; eyes large, broadly oval, and equally rounded above 

 and beneath. 



Pronotum one-fourth wider than long, about equal in width at 

 base and apex, and widest at middle or in front of middle ; sides more 

 or less arcuately rounded anteriority, more strongly narrowed pos- 

 teriorly, and the posterior angles nearly rectangular; when viewed 

 from the side the marginal carina is feebly sinuate, the submarginal 

 carina nearly straight, and the two carinae separated for their entire 

 length; anterior margin strongly sinuate, and the median lobe 

 strongly, broadly rounded; base slightly emarginate at middle of 

 each elytron, the median lobe feebly, broadly rounded, and vaguely 

 emarginate in front of scutellum; disk moderately convex, with a 

 broad, vague median depression extending from base to near the 

 anterior margin, a broad, shallow depression on each side along 

 lateral margin, and with distinct, short, straight prehumeral carinae ; 

 surface vaguely granulose, coarsely, transversely rugose at middle, 

 the rugae becoming more longitundinal at the sides, finely, sparsely 



