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-n 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. 



