136 MEMOIRS ON THE COLEOPTERA 



rather finely and subevenly reflexed at the sides from apex to base, 

 the latero-basal region feebly flattened and with moderately distinct 

 suffused punctuation, the foveae nearly obsolete; stria fine, much 

 abbreviated anteriorly; elytra one-half longer than wide, oblong, 

 parallel, with feebly arcuate sides, very obtusely rounded in about 

 apical third and but very slightly wider than the prothorax, the 

 sinus long and feeble but very evident; surface somewhat depressed, 

 the striae rather fine, the scutellar rather short, free, the intervals 

 flat to distinctly convex, the fine punctures sparsely but evenly dis- 

 tributed throughout, the serial punctures more or less distinct; 

 abdomen with very minute sparse punctulation which is obsolete 

 laterally and more evident basally; hind tarsi very slender, with the 

 basal joint but little longer than the next two and almost twice as 

 long as the fifth, their upper surface with very fine sparse pubiferous 

 punctures throughout. Length (cf 9 ) 9.0-10.5 mm.; width 3.4-3.7 

 mm. New Jersey to Indiana. [Selenophorus opalinus Lee.] 



opalinus Lee. 



Form more oblong-oval, the anterior parts smaller, the surface still more 

 feebly convex, shining, black, the elytra only very faintly iridescent, 

 the under surface black to rufo-piceous; legs, antennae and palpi 

 very pale, flavo-testaceous; head two-thirds as wide as the prothorax, 

 the eyes (of) notably large and prominent, much larger than in 

 opalinus, the foveae very minute, sublinear and feeble; prothorax 

 two-fifths to one-half wider than long, the outline somewhat as in 

 the preceding, except that the sides are more strongly, subevenly 

 rounded, the apex more nearly as wide as the base and the hind 

 angles more broadly rounded; surface with similar rather fine even 

 reflexed edges from apex to base, but with the basal, lateral and 

 apical regions punctured rather closely throughout, very finely 

 toward apex, the foveae very broad and shallow, the stria strong and 

 subentire; elytra nearly as in opalinus but relatively wider, being 

 very distinctly wider than the prothorax, with the apices very 

 oblique, broadly, evenly arcuate to the acute apices and without 

 trace of sinus, the surface suffused throughout with fine but rather 

 close-set and very much more obvious punctulation; very slender 

 hind tarsi with the basal joint much longer than the next two 

 combined; abdomen extremely minutely, sparsely punctulate almost 

 throughout. Length (cf 9 ) 7.6-9.0 mm.; width 2.9-3.5 mm. 

 Texas (Brownsville and vicinity). [Selenophorus perpolitus Csy.]. 



perpolitus Csy. 



5 Form broadly suboblong, the head, prothorax and elytra increasing 

 evenly and rapidly in width, shining, black, the fine pronotal 

 reflexed margin testaceous; under surface more piceous, the epi- 

 pleura brownish; legs, antennae, labrum and palpi pale yellowish-tes- 

 taceous; elytra with pronounced opalescence; head fully three-fourths 

 as wide as the prothorax, with rather large but only moderately 

 convex eyes, the foveae subobsolete; antennae slender, fully half as 

 long as the body; prothorax fully one-half wider than long, widest a 

 little before the middle, the sides subevenly and rather strongly 

 arcuate; apex distinctly sinuate, with rather advanced and narrowly 



