NORTH AMERICAN COLEOPTERA. 291 



those of the thorax, the costie very faintly indicAted, tlie siittiral distinct, margin 

 not ciliate. Pygidiuni shining, with few scattered punctures. Metasternuni 

 sparsely punctate, the hnirs short and inconspicuous. Abdomen obsoletely 

 sparsely punctate at the sides, smooth at middle, without hairs. Legs yellowish 

 testaceous, not ciliate, posterior femora very little stouter than the middle, claws 

 i^rcuate, the tooth moderate, placed near the base. Palpi fusiform, not impressed. 

 Length .47 inch ; 12 mm. 



Male. — Antennse pale, the club one and a half times the length 

 of the stem. Abdomen flattened at middle. Last ventral segment 

 with a transverse cupuliform depression, posterior margin of the 

 penultimate segment elevated, a slight dentiform process at middle. 



Variations. — The nine specimens examined are remarkably uni- 

 form in size, color and sculpture ; they are all males. 



This species so closely resembles maeulicol/is, that it mi<^''ht readilv 

 be supposed to be a mere color variety, but the characters separating 

 them are many and important, the most obvious are the sculpture of 

 the head, the distinct hind angles of thorax and the absence of cilia- 

 tion of the margin and legs. 



Occurs near San Antonio, Texas. Collected by S. F. Aaron. 



80. l<. ina<>uIirolIis Lee— Oblong oval, yellowish testaceous, elytra brown- 

 ish testaceous, thorax with a large piceous spot, irregularly i)entangular in form, 

 the base in front, surface moderately shining. Head piceous, almost black, 

 opaque. Clypeus almost .semicircular, rather deeply concave, margin widely re- 

 fiexed, coarsely closely punctate, front roughly cribrate. Thorax distinctly 

 narrower in front, apical border slightly thickened, sides arcuate, margin entire, 

 ciliate with long hairs, surface with moderately coarse, sparsely placed punctures, 

 hind angles very obtuse. Elytra with coarser punctures than the thorax, more 

 closely and regularly placed, margin ciliate with long hairs. Pygidium coarsely, 

 sparsely punctured. Metasternuni closely punctate, the hair sparse, but moder- 

 ately long. Abdomen with very coarse, shallow punctures and with sparse erect 

 hair. Last joint of maxillary palpi fusiform, slightly imjiressed. Legs sparsely 

 ciliate with moderately long hairs, femora yellowish testaceous, tibise. and tarsi 

 brown, posterior femora short. Claws feebly arcuate, with a very small l)asal 

 tooth. Length .48 — .55 inch ; 12 — 14 mm. 



Male. — Antennae rufotestaceous, club brown, one and a third 

 times longer than the entire stem. AI)domen without sexual pecu- 

 liarity. 



Variations. — Of this species four specimens have been examined 

 showing no noteworthy variation. 



The descrij)tion of the color as given by Dr. LeConte is somewhat 

 different from that given above. The entire under side and femora 

 are pale yellow'ish testaceous. The thorax is a little darker in color, 

 and the large piceous spot gives the species an appearance rather odd 

 for the genus. 



Collected at Cape San Lucas, Lower California, by John Xantus. 



