4 PROCEEDINGS OF THE NATIONAL MUSEUM vol.68 



AGRILUS IMPRESSIFRONS Kiesenwetter 



Agrilus impressifrons Kiesenwetter, Deutsche Entomol. Zeitschr., vol. 23, 

 1879, pp. 254-255. 



This species was described from the Amur River region of Siberia, 

 nnd among the material received from T. D. A. Cockerell is one spec- 

 imen collected by V. Prinada at Vladivostok during 1923. 



AGRILUS SMARAGDINU9 Solsky 



Agrilus S7nara<7(im«.s Solsky, Horae Soc. Entomol. Rossicae, vol. 11, 1876, 

 pp. 279-280. 



This beautiful green species was described from a single example 

 collected by Mr. Pouzilo along the banks of the Souyfoun River near 

 Vladivostok. 



Among the material submitted by T. D. A. Cockerell was a single 

 example of this species collected at Vladivostok, during 1923, by 

 V. Prinada. 



AGKILUS COCKERELLI, new species 



Female. — Form rather large, robust, and moderately shining; above 

 glabrous, rmiformly dark blue with a slight greenish tinge; beneath 

 blackish-blue, slightly more shining than above, and with the tarsi 

 feebly aeneous. 



Head with the front rather wide, feebly convex, and the sides 

 obliquely expanding toward the top, broadly but obsoletely concave 

 on the front, with a rather broad, distinct longitudinal groove on the 

 vertex and occiput; surface coarsely, irregularly, and rather densely 

 punctate, and with moderately fine irregularly placed rugae, which 

 are transverse on the front, and more or less concentrical on the 

 occiput; epistoma slightly wider between the antennae than the diam- 

 eter of the antennal cavities, transverse in front, with a small angu- 

 lar emargination at the middle; antennae moderately long, and 

 serrate from the fourth joint. 



Pronotum nearly one and one-third times as^wide as long, slightly 

 narrower at base than apex, and widest at apical fourth; sides feebly 

 expanded from apical angles to apical fourth, then obliquely narrowed 

 to the posterior angles, which are nearly rectangular; when viewed 

 from the side the upper margin is sharply defined and feebly sinuate, 

 and the lower margin distinct, widely separated anteriorly, and con- 

 nected to the upper margin behind the middle ; anterior margin obso- 

 letely arcuatoly rounded; base rather strongly angularly emarginate 

 at elytral lobes, and feebly arcuately emarginate in front of scutellum ; 

 surface moderately convex, with two shallow depressions on disk at 

 apical third, a similar depression on each side along base near poste- 



