286 BULLETIN" 14 5, UNITED STATES NATIONAL MUSEUM 



emarginate in front; pr'osternal process broad, the sides parallel to 

 behind the coxal cavities, then abruptly narrowed to the apex, which 

 is acute. Tibiae slender, and the anterior and middle pairs armed 

 with a short tooth on the inner margin at apex. Posterior tarsi 

 slightly shorter than the tibiae, and the first joint as long as the 

 following two joints united. Tarsal claws similar on all feet, cleft 

 near the middle, the inner tooth broad, shorter than the outer one, 

 and not turned inward. 



Length, 5.75 mm. ; width, 1.5 mm. 



Female. — Differs from the male in having the head uniformly 

 mahogany red, lateral margins obliquely narrowed from bottom to 

 top, surface not so distinctly granulose, and the pubescence sparser ; 

 first abdominal segment convex at middle ; prosternum without long, 

 erect pubescence, and the tibiae unarmed. 



Eedescribed from the male type in the collection of C. A. Frost. 



Type locality. — Allegheny County, Pa. 



DISTRIBUTION 



Material examined : 



Alabama: Hazen, April 4, 1921 (L. B. Woodruff). 

 Indiana : No definite locality. 



Iowa: Fort Madison ( ). 



Kansas: Benedict County (W. Knaus). 



Louisiana: Tallulah, April 13, 1910 ( ). Opelousas, May 7, 1908 (R. A. 



Cushman ) . 

 Mississippi: Agricultural College, March 23, 1920 (M. W. Blackman). 

 Ohio: Maumee, June 7 (A. Mathewson) ; Cincinnati (— — ). 

 Pennsylvania: Jeannette, June- July; Pittsburgh, June 3 (H. G. Klages). 



Variations. — The color is rather constant, although some examples 

 have a slightly more cupreous or greenish tinge than others, and the 

 median depressions on the pronotum and the prehumeral carinae are 

 more or less variable. Length 4.5 to 6.25 millimeters. 



Host. — This species has never been reared, therefore the larval 

 habits are unknown, but the adults have been collected by Woodruff 

 in Alabama on oak (Quercus sp.). 



Superficially this species resembles very closely fallax Say, and the 

 two species are probably confused in most collections, but it can be 

 readily separated from fallax by having the antennae serrate from 

 the fifth joint. 



100. AGRILUS EGENIFORMIS Champlain and Knnll 



Figure 76 



Agrilus egeniformis Champlain and Knull, Ent. News, vol. 34, 1923, pp. 

 84-85, fig. 3.— Knull, Ohio State Univ. Studies, vol. 2, no. 2. 1925, 

 pp. 51-52, pi. 1, figs. 5, 18. — Chambeblin, Cat. Buprestidae, 1926, p. 

 59. 



