Vol. xxx1| ENTOMOLOGICAL NEWS 9 
convex, two median depressions with an oblique lateral depression on 
each side, surface transversely strigose. Scutellum transversely carinate, 
surface granulate. Elytra sinuate behind the humeri, dilate behind the 
middle, apices separately rounded and serrulate; basal depressions slight, 
sutural margin elevated behind the middle, surface closely imbricate- 
granulate. Body beneath more shining than above, prosternal lobe with 
slight emargination, prosternal process slightly narrowing, acute at tip, 
median line of pubescence lacking in both sexes, first two ventral segments 
of male flat, but not pubescent, Pygidium without a projecting carina. 
First joint of hind tarsus as long as the three following joints; tarsal claws 
deeply cleft, the lower portion turned inward, nearly touching that of 
the opposite side, claws on all three pairs of feet in both sexes similar. 
Length 4 mm.; width .75 mm. 
o'.—Front bright green, tibiae on all three pairs of feet mucronate. 
Q .—Front bronze, posterior tibiae not mucronate. 
Described from a series of three males and seven females. 
Type male and allotype collected at Framingham, Massa- 
chusetts, May 28, by Mr. C. A. Frost; two paratypes at 
Charter Oak, Pennsylvania, June 21, by Mr. H. B. Kirk 
and the author; one from Berks County, Pennsylvania, 
June 1, without collector’s label; one Harrisburg, May 24; 
one Chambersburg, Pennsylvania, June 6; and one Hum- 
melstown, June 2, by the author. Type material in the 
author’s collection, two paratypes in the collection of the 
Bureau of Plant Industry. 
I take pleasure in naming this species after my friend, 
Mr. C. A. Frost, who has determined much material for me 
and given me many valuable suggestions. 
The species has been confused with A. ofiosus in collec- 
tions, but the lack of the ventral median pubescent stripe 
in the male will at once separate it from this species. The 
male genitalia are also different from those of A. otiosus and 
A. juglandis, being flattened and flared at the apex. The 
sides are densely punctate above and below. In A. otiosus 
and A. juglandis the sides of the male genitalia are nearly 
parallel near the apex. 
The male also lacks the ciliate antennae of A. crinicornis 
and the fimbriate and truncate last ventral segment of A. 
defectus. According to Dr. Horn’s key, it would come after 
A. otiosus. 
