80 GEO. H. HORX, M. D. 



angles, sides feebly arcuate, gense very obtuse. Thorax one and a half times as 

 wide as long, not narrowed posteriorly, the sides feebly arcuate, hind angles very 

 obtuse, base arcuate, the marginal line distinct, disc moderately convex, the punc- 

 tures coarse, sparsely and irregularly placed, less numerous near the base, an en- 

 tirely smooth space near the hind angles. Elytra as wide at base as the thorax, 

 humeri scarcely dentate, sides parallel, strise rather coarsely crenate punctate, 

 intervals flat, smooth. Mesosternum in front opaque and punctured, the inter- 

 coxal carina short and indistinct. Metasternum smooth. Abdomen smooth, 

 either entirely without punctures or with a very few fine and indistinct. Ante- 

 rior tibife tridentate externally, not distinctly crenate above. Posterior femora 

 smooth without marginal line, the tibia without accessoiy spinule, the first tarsal 

 joint a little longer than the long spur. Length .14-. 16 inch ; 3.5-4 mm. 



Thnnigli the kindness of Baron Harold I have received a typical 

 specimen of this species, and can therefore be certain of the identifi- 

 cation of the specimens before me. Harold describes the striae as 

 " finely punctate," but in a small insect, like the |)resent, where the 

 ])unctures occu{)y nearly as great a space as the intervals, between 

 them should be called " rather coarsely crenate punctate." The 

 present species has been compared with Haroldi Steinh., from the 

 Argentine Republic, which has the clypeus slightly angulate each 

 side of the emargination, and the punctures of the thorax deepei'. 

 Two specimens in my cabinet from the Indian Territory and Arizona 

 have a suspicion of an angulation and the punctures of the thorax 

 deeper and more numerous, the striae less deep and finely punctured. 

 I am, however, unwilling to consider these Haroldi without com- 

 parison, and do not think it advisable to give them a new name 

 merely for the locality differences. Their existence in our fauna is 

 indicated so that they may be recognized by those po.ssessing them. 



Occurs in Georgia, Louisiana and Texas. 



A. I'obustus Horn. — Oblong oval, moderatelj' convex, fades robust, black, 

 subopaque ; legs piceo-rufous. Antennae jjiceous. Head moderately convex, 

 rather coarsely and den.sely punctured, except at middle of front, the sides ru- 

 gose, but not transversely wrinkled. Clypeus impressed in front; broadly, but 

 feebly emarginate, broadly rounded each side, the sides oblique, feebly arcuate, 

 geuse moderately prominent, subacute. Thorax twice as wide as long, slightly 

 narrow at base, sides feebly arcuate, hind angles broadly rounded, base arcuate, 

 the marginal line fine, but distinct; disc moderately convex, very densely and 

 rather finely punctured over the entire surface, except a narrow smooth median 

 line posteriorly. Elytra as wide as the thorax, not more than one and a quarter 

 times longer than wide, humeri rather strongly dentate, sides arcuate ; di.sc finely, 

 but rather deeply striate, strife indistinctly punctate, intervals verj' flat, densely 

 punctured, the punctures nearly as coarse as those of the thorax. Mesosternum 

 opaque, rather coarsely punctured, intercoxal carina very indistinct. Body 

 beneath more shining than above. Metasternum coarsely sparsely punctate. 

 Abdomen coarsely sparsely punctate, the segments crenate in front. Anterior 



