368 ENTOMOLOGICAL NEWS. [Oct., ’08 
An Interesting new Agrilus from Cincinnati, Ohio. 
By CHARLES Dury. 
Agrilus ferrisi n. sp. 
Color, shining cupreous. Head coarsely, strigosely punctured. An- 
tennae serrate from the fourth joint. Front densely pubescent with 
white hairs, and with a deep median groove. Prothorax slightly broader 
than long. Sides almost parallel, rounded at front angles and sinuate 
in front of obtuse hind angles, which are carinate in both sexes. Disk 
coarsely punctured and strigose, with a dense patch of white pubes- 
cence each side, extending from base to apex. Scutellum transversely 
carinate. Elytra costate from humeri nearly to tip. Sides slightly 
sinuate behind the humeri and dilated behind the middle, thence taper- 
ing to tip, which is serrulate and prolonged into an acute spine. The 
surface of elytra is muricately punctured and transversely wrinkled. 
The elytra project beyond the tip of last abdominal segment in both 
sexes. The pygidium is not carinate. Beneath, the entire thorax, sides 
of meso- and metasterna, and a large patch on the sides of each ventral 
segment, densely white pubescent. Claws bifid. The sexual organs 
are very peculiar. The male organ is composed of three pieces, the 
middle one being longest and bluntly pointed at tip. The shorter side 
pieces are acute at tip, and with a fringe of long hairs each side. 
There is a channel down the centre of the tip of the middle piece. The 
tip of last ventral segment is bluntly rounded and has a deep groove 
running around it near the edge. In the female the last segment is 
squarely truncate, and the projecting ovipositor is tapering and emar- 
ginate each side, and squarely truncate at tip. The segment has a 
feeble longitudinal carina at middle and a curved groove each side. 
Length, 10-11 mm. 
Fifteen specimens. Beaten only from Hackberry Celtis occi- 
dentalis. Cincinnati, Ohio, June 7 to July 2. This species 
leads to a large group of forms found in Mexico and Central 
America, in which the elytral apices are prolonged and other- 
wise curiously modified in various ways. I am unable to find 
anything like it described in the Biologia, or Dr. Horn’s paper, 
Trans. Amer. Ent. Soc., xviii, p. 277. : 
Named in honor of Miss Phoebe Ferris, in whose woods I 
found all of the specimens. During her lifetime she was a 
devoted lover of our virgin forests, and realized the import- 
ance of their preservation. A specimen deposited in U. S. 
Nat. Museum, m 
