242 MEMOIRS ON THE COLEOPTERA 



or six short stout external spinules apically. Length (9 ) 7-8 mm.; 

 width 3.5 mm. Colorado (Denver) relictus n. sp. 



Body smaller and narrower, nearly similar in lustre and coloration, the 

 abdomen not rufescent apically; legs dark rufous; head not actually 

 larger, though almost three-fifths as wide as the prothorax, the eyes 

 and strioles nearly as in the preceding, the ferruginous antennae 

 still shorter; prothorax shorter, one-half wider than long, the sinuate 

 apex similarly narrower than the base, but with more obtusely 

 rounded angles; sides and basal angles nearly similar; surface less 

 smooth, transversely wrinkled toward the median stria, which is 

 much finer; apical parts without trace of punctures; foveal regions 

 finely, strongly punctate, the medio-basal part almost impunctate; 

 foveae nearly similar; elytra as in relictus but more gradually and 

 acutely ogival behind, one-half longer than wide, at the middle evi- 

 dently wider than the prothorax, the sides arcuate; striae similarly 

 fine but more impressed, almost completely impunctate, the scu- 

 tellar moderate, fine, the lateral series similar; scutellum broader; 

 intervals very feebly convex, not at all more so apically, less aluta- 

 ceous (9) than in relictus; metasternum and episterna impunctate; 

 anterior tibiae nearly similar. Length (9 ) 7.4 mm.; width 3.25 mm. 

 Colorado (Colorado Springs),- Cockerell obsolescens n. sp. 



Body much more parallel, the elytra less inflated, polished, black, the 

 legs obscure rufous, the femora piceous; head less than three-fifths 

 as wide as the prothorax, with prominent eyes and fine oblique 

 strioles; two basal joints of the antenna? ferruginous, the remainder 

 missing in the type; prothorax barely two-fifths wider than long, 

 widest at the middle, with the sides very evenly arcuate and finely, 

 strongly reflexed from apex to base, the basal angles but little more 

 than right, not rounded; apex distinctly sinuate, with rather well 

 rounded angles, much narrower than the transverse base; impres- 

 sions subobsolete, the median stria very fine; surface impunctate, 

 except finely, sparsely and deeply at the foveae, which are shallow 

 and nearly as in the two preceding; elytra two-fifths longer than 

 wide, only very little wider than the prothorax, the sides feebly arcu- 

 ate; striae moderately fine, evidently impressed and without obvious 

 punctures, the scutellar moderate, almost free, the lateral series 

 very moderately interrupted; intervals barely evidently convex; 

 under surface with very few fine punctures at the sides of the meta- 

 sternum. Length (d 71 ) 7.5 mm.; width 3.25 mm. Mexico (Colonia 

 Garcia, Sierra Madre Mts., Chihuahua), Townsend. 



*aequalis n. sp. 



7 Form oblong-suboval, very moderately convex, black, the legs rufo- 

 piceous; surface highly polished, with a varnish-like glaze; head 

 nearly three-fifths as wide as the prothorax, the eyes unusually 

 large, rather prominent; strioles very small, linear; antennae extend- 

 ing to the thoracic base, colored differently and as in Amara, piceous- 

 black, the three basal joints and base of the fourth bright testaceous; 

 prothorax one-half wider than long, widest just behind the middle 

 apex moderately sinuate, with obtuse blunt angles and scarcely more 

 than three-fourths as wide as the base; sides subevenly rounded 



