Coleo'pterological Notices. 471 



slender antennae with the third joint longer, as well as by its uniform 

 coloration. 



C. liniformis u. sp. — Form oblong-oval, rather robust, convex, black ; 

 legs and antenna? piceo-rufous, rather strongly shining ; vestiture as in seriatus. 

 Head strongly transverse, rather coarsely and confluently punctured behind, 

 the punctures becoming very fine and dense anteriorly ; epistoma rather 

 strongly sinuate in the middle ; upper lobe of eye small, broadly oval ; 

 antennae very robust and compact, nearly as in seriatus, but with the third 

 joint a little longer. Prothorax moderately transverse, scarcely one-third wider 

 than long ; base truncate equal in width to the apex, the latter extremely 

 feebly emarginate ; basal angles very slightly obtuse, not at all rounded and 

 slightly produced posteriorly ; sides feebly arcuate anteriorly, straight toward 

 base ; disk widest before the middle, finely and somewhat sparsely punctate, 

 the punctures becoming much coarser, deeper and very dense toward the sides. 

 Elytra distinctly wider than the prothorax and scarcely more than twice as 

 long ; sides rather strongly arcuate ; humeri obtusely rounded ; apex evenly, 

 not very broadly rounded ; disk with rather feebly impressed striae of small 

 but distinct and very closely placed punctures, becoming larger toward base ; 

 intervals flat, sparsely and very finely punctured. Abdomen polished, finely 

 and sparsely but deeply and distinctly punctate. 



Male. — Abdomen narrowly and distinctly impressed in the middle toward 

 base. 



Length 3.7-4.5 mm. ; width 1.5-1.8 mm. 



Arizona. 



Although somewhat allied to seriatus, this species may be dis- 

 tinguished by its oval elytra, wider than the prothorax, by the much 

 larger and stronger strial punctures, and by the less transverse pro- 

 thorax with differently formed basal angles. 



C opacilS Lee. — Notihius opac. : New Spec. Col., 1866, p. 118.-^Ovate, 

 strongly convex, black ; legs and antennae piceous ; lustre extremely dull 

 because of a fine, strong, granular reticulation ; vestiture as in seriatus. Head 

 transverse, flat, rather finely, very densely punctate, the punctures longitu- 

 dinally coalescent posteriorly, finer and muricate anteriorly ; epistoma very 

 deeply sinuate in the middle ; upper lobe of eye small, but larger than usual 

 and broadly oval ; antennae rather long and robust, as long as the head and 

 prothorax, last three joints forming a strong club, third long, fully as long as 

 the next two, tenth nearly twice as wide as long, the eleventh much narrower. 

 Prothorax scarcely one-third wider than the head and one-fourth wider than 

 long, the apex broadly emarginate, fully as wide as the base which is just 

 perceptibly and evenly arcuate throughout, the sinuations obsolete ; basal 

 angles not rounded, not prolonged posteriorly but rendered very slightly 

 prominent from a very feeble gradual sinuation of the sides before them ; sides 

 anteriorly evenly, rather feebly arcuate ; disk widest before the middle very 



