9-i GEO. H. HORN, M. D. 



Ps. bi<lens Horn. — Oblong, parallel, convex, piceous, shining, legs brown- 

 ish. Autennse rufotestaceous. Head closely, moderately coarsely verrucose. 

 Clypeus slightly impressed in front, broadly emarginate, on each side a small 

 acute reflexed tooth, the sides arcuate, a slight sinuation at end of frontal suture, 

 geuse feebly prominent, obtuse. Thorax one-third wider than long, not narrowed 

 in front, sides regularly arcuate, the margin feebly crenulate, anterior angles 

 rounded, the posterior very obtuse, base arcuate, the marginal line distinct, disc 

 moderately convex, a rather deep subtransverse impression in the front angles, 

 a small fovea at middle of declivity, the surface sparsely punctate above, a smooth 

 region along the apex, the sides broadly smooth. Elytra as wide at base as the 

 thorax, humeri obtuse, sides nearly parallel, disc deeply striate, strife indistinctly 

 IJunctured at bottom, intervals convex, smooth, slightly crenate on their inner 

 border. Mesosternum opaque, densely punctate, carinate between the coxse. 

 Metasternum slightly scabrous at sides. Abdomen coarsely sparsely punctate, the 

 segments crenate in front. Posterior femora stout, nearly smooth, the marginal 

 line very short, apical, the tibiai stout, with one transverse carina near the apex, 

 the spurs unequal, slender. Posterior tarsi longer than half the tibia, the first 

 joint much broader at apex. Length .14 inch ; 3.5 mm. 



At first glance this species is not very unlike small specimens of 

 Aphodius granarius. On comparison with the other species of the 

 genus, this one is remarkable in the bidenticulate clypeus and the 

 comparatively smooth thorax. All trace of the transverse impres- 

 sions is lost, while the rather deep and irregular impression at the 

 front angles recalls At?enius. 



Occurs in Georgia and Florida. 



Ps. a^gialioides Hald.— Oblong oval, slightly broader behind, convex, 

 moderately shining, piceous, elytra and legs dark brown. Antennae, pale rufo- 

 testaceous. Head moderately convex, coarsely and closely verrucose, the occipital 

 region with two deep angulate lines separated by an elevated ridge. Clypeus 

 l)roadly triangularly emarginate, angles each side very obtuse, sides slightly 

 arcuate, a slight notch at end of clypeal suture, gense obtuse. Thorax one-third 

 wider than long, slightly narrower in front, anterior angles very obtuse, hind 

 angles distinct, but obtuse ; base arcuate, the marginal line distinct, disc convex, 

 with four well defined and convex transverse ridges, the first two entire, the last 

 two interrupted by a median depression, the ridges smooth, the intervals between 

 them coarsely punctured, a region along the side smooth. Elytra as wide at base 

 as the thorax, humeri very obtuse, sides nearly straight, slightly divergent, the 

 striae moderately deep, not closely punctured, intervals slightly convex, smooth. 

 Mesosternum ojiaque, densely punctured, not carinate between the coxae. Meta- 

 sternum slightly scabrous at sides. Abdomen almost absolutely smooth. Poste- 

 rior femur stout, smooth, the marginal line moderately deep, reaching two-thirds 

 to base, the tibia not stout, without oblique ridges, but with three longitudinal 

 series of muricate tubercles, one on each of the edges, the third along the middle 

 of the outer side, the spurs slender, but obtuse at tip, the tarsi not longer than 

 half the tibia, the first joint elongate triangular. Length .16 inch ; 4 mm. 



