100 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



near the middle, the outer tooth long and acute, the inner one short, 

 broader, and not turned inward. 



Length, 8.5 mm. ; width, 1.8 mm. 



Female. — Differs from male in having the front of head broader, 

 antennae slightly shorter; presternum coarsely punctate at middle 

 and not pubescent; posterior tarsi shorter than tibiae, and the 

 anterior tibiae unarmed at apex. 



Redescribed from the male type (no. 1) in the Museum of Com- 

 parative Zoology, Cambridge, Mass. 



Type locality. — Eagle Pass, Tex. 



DISTRIBUTION 



Material examined : 



Texas: Eagle Pass (type). La Grange, August 17; Columbus, July 22 (Hub- 

 bard and Schwarz). Brownsville, May 28 to June 12, reared (H. S. 

 Barber). Brownwood, May 9 (F. M. Hull). Chisos Mountains. July 20-24 

 (H. A. Wenzel). New Braunfels, May (H. Mittendorf). 



Recorded also from Carmal County, Tex. It has also been recorded from 

 Pennsylvania and Kentucky from erroneously identified or incorrectly 

 labeled specimens. 



Variations. — The species is somewhat variable, the color varying 

 from olivaceous green to brownish cupreous, with the pubescence on 

 the head whitish or yellowish white. The median depression on 

 pronotum is slightly variable in depth, and the anterior margin of 

 the presternum is broadly rounded or feebly, arcuately emarginate. 

 The greatest variation is in the shape of the lateral margins of the 

 pronotum, which is widest at the middle, and the sides are feebly, 

 regularly rounded in some examples, whereas in others the sides are 

 nearly parallel to each other, and the margins are strongly sinuate. 

 Length 8.5 to 16 millimeters. 



Host. — This species has been found by Hubbard and Schwarz at 

 Brownsville, Tex., boring in Celtis, and H. S. Barber has reared a 

 number of adults from Hackberry (Celtis Occident alis Linnaeus) col- 

 lected at the same locality. 



The type of this species is a very small specimen collected by Mr. 

 Schott, and is more brownish cupreous than most of the specimens 

 examined. Horn (1891) states that in the male the front of the 

 head is more concave than in the female, and that the scutellum is 

 scarcely carinate. This statement is incorrect, as the front of the 

 head is about equally concave in both sexes, and the carina on the 

 scutellum is equally distinct in all of the specimens examined of 

 both sexes. Horn also states that in the original description the 

 scutellum is said to be not carinate, but LeConte does not mention 

 the scutellum in his original description, and on examining the type 

 the scutellum was found to be distinctly carinate. 



