132 GEORGE II. HORN, M. D. 



Occurs from Pennsylvania to Kansas. Numerous specitp ens of this 

 species have been sent me by Dr. Summers from the neighborhood of 

 St. Louis, where it appears to be common, 



A. Walshii, n. sp. — Similar in color, form and general apyieavunce to femoral is 

 but differing as follows: Head with margin more broadly reflexed, sides of 

 thorax more broadly luteous, base distinctly margined. Elytra moderately 

 deeply striate, strise feebly punctured ; interspaces moderately conve.K, very 

 sparsely or not at all punctulate. Body beneath as infemoralis, tibise less fus- 

 cous. Length .20 — .24 inch ; 5 — 6 mm. 



Male. — Anterior tibise sinuate wiihin, inner apical angle truncate, spur long, 

 truncate and hooked at tij), upper tooth of outer edge small, becoming obso- 

 lete. 



Female. — Anterior tibise normal, upper tooth small, more distinct, spur slen- 

 der, acute. 



Easily known by the pubescent elytra, and the peculiar sexual 

 characters. In both these species the pubescence consists of short 

 yellowish sub-erect hairs, arranged in a row on each side of each inter- 

 space. 



Illinois. Dedicated to B. D. Walsh, in whose sudden death econo- 

 mic entomology suflPered a serious loss. 



A. rubripennis, n. sp. — Oblong, slightly depressed, black shining; elytra 

 reddish-yellow, sub-opaque and pubescent. Head sparsely and finely punctu- 

 late, clypeus broadly rounded, not emarginate. Thorax moderately convex, 

 coarsely but sparsely punctured with finer jjunctures intermixed, sides moder- 

 ately rounded, base not margined. Elytra finely striate, striae finely punctured, 

 interspaces feebly convex, sparsely and irregularly punctured. Body 

 beneath black, shining, tarsi rufous. First joint of hind tarsi as long as last 

 four together. Females only are known, the tibial spurs all slender and acute 

 Length .28— .30 inch; 1—1.b mm. 



Two specimens, one from Canada and another from Pennsylvania. 



The elytra are much more sparsely pubescent than in either of the 

 two preceding species. 



Group N contains a single species in our fauna, easily known by the 

 unequal spinules of the apex of the hind tibise, the sides of the thorax 

 distinctly sinuate near the hind angle, and by the sides of the elytra 

 being parallel and the clypeus denticulate. 



A. oblongUS, Say, Journ. Acad, iii, 1823, 215. badipes, Mels. Proc. Acad. 1844, 

 p. 135. — Oblong, black, shining. Head finely punctured, more densely at the 

 sides; clypeus deeply emarginate at middle and acutely dentate on each side. 

 Thorax broad, moderately convex, coarsely but sparsely puuctured, with finer 

 punctures intermixed ; sides moderately rounded, sinuate near the hind angles, 

 base distinctly margined. Elytra parallel, obtuse at tip, not deeply striate, 

 strise moderately punctured, interspaces flat, finely and sparsely punctulate. 

 Body beneath piceous, legs black. Length .36 inch; 9 mm. 



Male. — Spur of anterior tibire broad, truncate and hooked at tip or feebly em- 

 arginate ; inner spur of middle tibise short, robust. 



