250 THE CANADIAN ENTOMOLOGIST. 



ternum acute ; propleurse and coxal plates subgranulate, sparsely pubes. 

 cent ; metasternum scabrous-imbricate ; ventrals imbricate, becoming 

 finer toward the apex and sparsely punctate along the middle, tip of last 

 ventral oval, granulate. Pygidium coarsely irregularly punctured without 

 distinct carina. Tibiœ mucronate on all the legs. Claws with a broad 

 obtuse tooth at the base, similar on all the feet. Length 4.5 to 6 mm. 

 Width 1.2 to 1.4 mm. 



A male from Lyme, Conn, collected by Kirk and Champlain July 4, 

 1 9 II, seems to belong to this species but does not quite accord in some 

 particulars. A male from Vicksburg, Miss., sent me by Col. T. L. Casey, 

 agrees very well with the Pa. specimens, but it is somewhat smaller and of 

 a lighter bronze-aeneous colour. 



A female from Highspire, Pa., which agrees well with the type, shows 

 the following sexual differences : form slightly more robust, colour bronze- 

 aeneous, head larger and broader between the eyes, more densely punctate, 

 less pubescent, aeneous in colour : prothorax less narrowed behind ; elytra 

 slightly dilated behind the middle ; the median area of denser pubescence 

 of the male is here lacking. Two females from Jeannette, Pa., are some- 

 what smaller and resemble the males more nearly in form. I have also 

 seen a male from Lafayette, Ind., June 21, 1907 ; collection of Mr. A. B. 

 Wolcott, Chicago, III. 



In the type there is an apparent carina of the pygidium which is 

 caused by a median smooth space sharply limited by the coarse and irreg- 

 ularly confluent punctuation on each side of it. The punctures are very 

 sparsely placed toward the margin. The pygidium of a single male that 

 I have dismembered shows similar characteristics. 



Agrilus aiiricomus, new species. Holotype a male. Form elongate, 

 depressed, broadest at the base of the elytra, black or olivaceus black, 

 shining ; thorax shining aeneous with a path of golden pubescence in the 

 lateral depression extending to the anterior angles. Antefmce reaching the 

 middle of the prothorax, aeneous, serrate from the fourth joint. Bead 

 densely coarsely punctate, becoming transversely strigate above the middle; 

 occiput feebly impressed ; the median impressed line extending from the 

 back of the head nearly to the clypeus ; a triangular patch of golden 

 pubescence above the clypeus, the suture of which is indicated by a fine 

 carina ; granulations of the eye unusually fine or indistinct. Prothorax 

 one-third wider than long, base very slightly wider than the apex, at the 

 middle equaling the elytra at the base, sides regularly arcuate, lateral 

 margin sinuate ; disk depressed and with a shallow median impression; 

 two small circular fove^e each side in front of the middle, vaguely defined 

 by surrounding smooth space ; lateral depressions deep, causing sides to 

 appear explanate ; surface transversely strigate ; hind angles with a faint 

 carina. Scutellum carinate at the sides, interrupted at the middle. Elytra 



