Coleopte7-ologicaI Notices, VI. 661 



"body, verj' feebly incrassate, the tenth joint much longer than wide. Protho- 

 rax much narrower than the head, slightly longer than wide, very convex, 

 minutely and very sparsely punctate, the anterior lolje slightly transverse, the 

 posterior strongly expanded to the well marked basal margin; pubescence in- 

 conspicuous. Elytra long, twice as long as wide, twice as wide as the protho- 

 rax, very slightly dilated behind the middle, thence gradually narrowed, the 

 ^pex not very broadly rounded; humeri liroadly exposed, the mes-episternum 

 slightly visible from above as usual; disk broadly strongly and transversely 

 impressed at basal fourth, the post-scutellar impression rather feeble, the omo- 

 plates large and moderately distinct; punctures fine and sparse, becoming 

 relatively coarse, asperate and closer in the basal pale area; pubescence minute 

 and very inconspicuous behind, but coarse, pale, closer and distinct toward 

 base. Abdomen polished, minutely, remotely punctate, sparsely, somewhat 

 ■coarsely pubescent. Legi^ moderate in length, the femora rather stout. 

 Length 2.7 mm. ; width 0.75 mm. 



Utah (southwestern). 



The sparse punctuation, narrower form and still longer, more 

 slender antennse, will prove sufficient to distinguish this fine spe- 

 cies from the preceding, which it resembles in general facies. 

 The single male in m}^ cabinet has the fifth ventral rather broadly 

 truncate at apex, but unmodified on the disk, the genital segment 

 broadly, feebly sinuato-truncate throughout its width. 



6. I,, nubilatiifti n. sp. — -Narrow, polished, pale ruf o-testaceous, the abdo- 

 men, posterior parts of the elytra and antenme except toward base, piceous-black. 

 Head scarcely wider than long, a little less than semi-circularly rounded be- 

 liind, the temporal angles slightly visible; eyes large, prominent; surface con- 

 vex, finely, remotely punctate, the punctures becoming slightly asperate ante- 

 riorly ; antenna? long, very slender, feebly incrassate, rather more than one- 

 lialf as long as the body, the tenth joint much longer than wide. Prothorax 

 rather small and narrow, much narrower than the head and decidedly elongate, 

 strongly convex, the anterior lobe large, slightly wider tlian long, the posterior 

 distinctly expanded toward base; punctures minute and very remote, except 

 toward the median line before tlie middle and at apex, where they become 

 much denser; pubescence inconspicuous. Elyfnt scarcely twice as long as wide, 

 rather more than twice as wide as the prothorax, not perceptibly dilated be- 

 hind the middle, abruptly, broadly rounded behind, the sides parallel; i^ost- 

 scutellar impression narrow and deep, the omoplates large and prominent ; 

 transverse impression broad and deep, punctures and pul)escence minute, 

 sparse and inconspicuous, except in the pale area at basal third or fourtli, 

 wliere they become coarser and denser, the former asperate. AMomcn polished, 

 feebly pubescent. Legs long and slender. Length :2.(>5 mm.; width 0.7 mm. 



Arizona. 



This species, and the two preceding, are unusuall}- closely allied 

 ximong themselves, but nubilalus may be distinguished from both 



