194 MEMOIRS ON THE COLEOPTERA. 



coarse sparse punctures intermingled on the vertex and occiput; pro- 

 thorax about as wide as long, with large shallow punctures, a narrow 

 smooth median line and the usual impunctate spot antero-laterally, 

 the surface moderately shining, minutely and inconspicuously sculptured; 

 elytra large, longer than wide, much wider and longer than the prothorax, 

 parallel, the punctures coarse, deep and close-set, the interspaces polished ; 

 abdomen parallel, evidently narrower than the elytra, rather strongly and 

 closely, submuricately punctate; male sixth ventral broadly and arcu- 

 ately truncate, not at all lobed, the intromittent spicule slender, acu- 

 minate. Length 14.0-14.5 mm.; width 2.6 mm. Atlantic coast regions. 



latipes Grav. 



Form only a little less stout and similar in lustre, coloration and general 

 sculpture but with the head notably smaller in both sexes, being evi- 

 dently narrower than the prothorax, the latter nearly similar but with the 

 punctures somewhat deeper, sparser laterally; elytra relatively nar- 

 rower and more elongate, distinctly wider and very much longer than the 

 prothorax, the punctures deep and close-set but not quite so coarse as 

 in latipes; abdomen nearly similar, the intromittent spicule of the male 

 more slender, broadly and feebly constricted a little before the acu- 

 minate and slightly upturned apex; vestiture rather coarser and longer 

 throughout. Length 13.3-14.5 mm.; width 2.3-2.45 mm. Western 

 Texas (El Paso) obesus n. sp. 



4 Sixth ventral (d") lobed at apex, the lobe truncate or arcuato-truncate; 

 intromittent spicule broad, abruptly narrowed and prolonged in a very 

 slender process at apex 5 



Sixth ventral (cf ) rounded behind, with a small shallow and broadly rounded 

 sinus at apex; intromittent spicule narrower, more gradually narrowed 

 and acuminate at apex, the latter feebly upturned as usual 9 



5 Pronotum dull in lustre, because of very fine dense punctulation covering 

 the interspaces between the punctures. Slender, black, the apices of 

 the abdominal segments testaceous, the legs pale flavate; head notably 

 narrower than the prothorax, more shining than the pronotum, the eyes 

 only moderately convex, at two-fifths of their own length from the 

 base; prothorax distinctly narrowed from apex to base, with the usual 

 antero-lateral impunctate spot, the shallow punctures well separated as 

 usual, closer toward the narrow impunctate median line; elytra evidently 

 wider and much longer than the prothorax, much longer than wide, 

 strongly and closely punctate ; abdomen parallel, much narrower than the 

 elytra, closely, submuricately punctate. Length 11.9-12.7 mm.; width 

 1.75-1.85 mm. Regions bordering the Gulf of Mexico. Abundant at 

 Galveston, Texas parcus Lee. 



Pronotum strongly shining, the small punctules of the interspaces evident 

 though much less close-set than in parcus. Nearly similar to parcus 

 but a trifle stouter, similar in coloration, except that the elytra are 

 rufescent; head and eyes nearly similar, the outer antennal joints a 

 little stouter; prothorax rather longer than wide, less markedly wider 

 than the head and more parallel than in any other species of this group, 

 the punctures similarly disposed, not quite so large but much deeper; 

 elytra notably less elongate, distinctly wider and longer than the pro- 



