Horn. J -l-<^ [Nov. 5, 



In the male the anterior tarsi liave the first four joints dilated and pubes- 

 cent heneath, tlie middle nearly as wide, the first joint pubescent at tip 

 only, the following three densely pubescent. 



The female has the tarsi without pubescence, the anterior a little broader 

 than the middle. 



This species resembles some of the forms of rusticus, but the group char- 

 acters readily distinguish it . 



Occurs from Georgia to Louisiana. 



14. A. semipunctatus Lee. Form oblong, moderately robust, black, 

 subopaque. Clypeus with one seligerous puncture each side. Thorax 

 broad, slightly narrowed behind, sides feebly arcuate, hind angles rec- 

 tangular but not prominent, side margin narrowly depressed, surface punc- 

 tulate, more densely at" sides and base. Elytra a little wider than the 

 thorax, finely striate, intervals flat and very obsoletely puuctulate on the 

 disc, distinctly punctate at tip, dorsal puncture normal. Metasternum 

 at side obsoletely punctured, in front and behind also, the first ventral seg- 

 ment and prosternum with fine punctures bearing short setae. Length .50 

 inch ; 13.5 mm. 



The sexual characters are as in furvus. 



A. similis Lee. and jninctieollis Chaud. are the same. The first of these 

 names is somewhat older than that which I adopt and has been rejected in 

 fa v<n' of a more expressive name, no injustice being done to the original 

 author. 



15. A. consobrinus Lee. Similar to the preceding but with the thorax 

 more narrowed behind and the hind angles sharply rectangular ; the basal 

 impressions are vague and very shallow. The elytra are similar, but 

 without obsolete punctures on the intervals and the sides are more arcuate^ 

 The body beneath is smooth. Lengtli .30 inch ; 12.5 mm. 



The sexual characters as in furvus. 



Occurs in California in the middle and southern portions. 



16. A. californicus Dej. Resembles the preceding but the form is more 

 slender and the thorax less broad with tlie hind angles less prominent ; the 

 basal impressions are much deeper and more sharply defined and the sur- 

 face much less densely puuctulate. The body beneath is smooth. Length 

 .50 inch ; 12.5 mm. 



While in the two preceding species the sexes are nearly equally opaque, 

 here the male is decidedly more shining. 

 Sexual characters as in furvus. 

 Occurs in Oregon, California and Nevada. 



17. A. interpunctatus Kb}'. Oblong, black, shining (slightly opaque 

 9). Head sparsely, finely punctulate, clypeus with one puncture on each 

 side. Thorax much broader than long, base and apex equal, sides feebly 

 arcuate, margin narrowly depressed, hind angles rectangular not promi- 

 nent, basal impressions moderately deep, disc moderately convex, very 

 sparsely punctulate at middle, more densely along the base and side. . Ely- 



