22 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



lobe on each side of the emargination ; prosternal process broad, the 

 sides nearly parallel to behind the coxal cavities, then obliquely 

 narrowed to the apex, which is acute. Tibiae slender, straight, and 

 without a distinct tooth on the inner margin at apex. Posterior 

 tarsi slightly shorter than tibiae, and the first joint as long as the 

 following two joints united. Tarsal claws cleft near the middle, the 

 inner tooth shorter than outer one, feebly turned inward, but the tips 

 widely separated. (Posterior claws missing.) 



Length, 10.5 mm.; width, 2.75 mm. 



Male. — Unknown. 



Type locality. — Western Nevada. 



Redescribed from the type No. 3479 in the collection of the 

 Academy of Natural Sciences, Philadelphia. 



This species seems to be rare in collections, as only the unique 

 type collected by Morrison has been seen by the writer. Chamber- 

 lin (1917, 1926) records it from the following localities in Cali- 

 fornia : Cole, Tulare County, Yosemite Valley, and Redwood City, 

 as breeding in Aspen {Populus tremuloides Michaux), and Black 

 cottonwood {Populus trichocarpa Hooker), but these records prob- 

 ably refer to my new species populi. Good (1925) gives a drawing 

 of the wing of this species, which is probably made from an erro- 

 neously identified specimen. 



The depressions at middle and apical third of elytra on the type 

 are only vaguely indicated, and can scarcely be considered as depres- 

 sions. Horn (1891) in his description writes that the claws are 

 similar on all feet, but they are missing from the posterior feet on 

 the type. 



3. AGRILUS SUBTROPICUS Schaeffer 



Figure 2 



Agrilus subtropicus Schaeffer, Brooklyn Inst. Mus., Sci. Bull., vol. 1, no. 6, 

 1905, p. 131.— Feost and Weiss, Oanad. Ent., vol. 53, 1921, p. 72.— 

 Chamberlin, Cat. Buprestidae, 1926, p. 83. 



Male. — Elongate, cuneiform, rather strongly flattened above, feebly 

 shining, black, with a distinct brassy or bluish green tinge, and the 

 elytra more or less cupreous toward the apex; beneath aeneous or 

 cupreous, and more shining than above. 



Head with the front rather wide, nearly flat, and slightly narrower 

 at top than at bottom, the lateral margins feebly narrowed from 

 bottom to top, and with a rather deep, longitudinal groove extend- 

 ing from the epistoma to occiput, the groove more broadly depressed 

 behind the epistoma and on the vertex; surface coarsely, and rather 

 densely punctate, and sparsely clothed with long, recumbent, yellow- 

 ish white hairs; epistoma strongly transverse between the antennae. 



