n6 MEMOIRS ON THE COLEOPTERA 



obtuse and feebly oblique at tip than in that species; prothorax 

 throughout almost exactly as in rufus, the scutellum similar; elytra 

 also similar, except that the fifth stria is sulciform only very near 

 the base and becomes a row of close-set punctures thence nearly to 

 the apex, the sixth a row of small close-set punctures throughout, 

 obsolete subapically, the sublateral carina strong, the flat flanks 

 with numerous punctures, which are smaller than in rufus; 

 groove of the last ventral similar. Length 7.2-8.7 mm.; width 

 1.65-2.0 mm.; North Carolina (Southern Pines), Manee, and 

 Indiana puncticollis Newm. 



4 Body in outline nearly as in rufus but with much shorter elytra, similar 

 in color and lustre; head nearly similar but more closely and rather 

 strongly punctate, the punctures separated by twice their own widths 

 or less; front with a deep impression on the median line just behind 

 the apex and not connected with the more posterior feeble median 

 canaliculation; under surface unusually closely and conspicuously 

 punctate; antennse not as long as the elytra in the type and not very 

 slender, moniliform, the joints slightly elongate, the eleventh much 

 longer than the tenth and fully as wide, very obtuse at tip; prothorax 

 unusually short, barely visibly longer than wide, throughout nearly 

 as in rufus, the punctures much coarser medially, the impunctate 

 median line somewhat convex; elytra as in rufus but shorter, only a 

 little more than twice as long as wide, two and one-half times as long 

 as the prothorax, the punctures of the flanks numerous but fine. 

 Length (cf 9 ) 5-8 mm.; width 1.25 mm. Pennsylvania (Rockville), 

 Champlain and District of Columbia puncticeps n. sp. 



Body still smaller and more slender, pale red-brown in color throughout 

 and shining; head rather narrow, finely, not densely punctate, 

 without trace of the perforate impression near the apex; antennae 

 nearly as in puncticeps but more slender; prothorax differing con- 

 siderably, distinctly elongate, narrower, the sides more arcuately 

 converging throughout and with the sinus toward base less differ- 

 entiated, the carina at each basal angle extremely fine and short; 

 surface with very fine punctures externally, becoming coarser and 

 more conspicuous on the flattened median part, the impunctate line 

 not extending before the middle; elytra barely wider than the pro- 

 thorax, relatively shorter than in rufus and with sculpture as in 

 puncticollis; groove of the last ventral not very coarse, unusually 

 little bent and close to the hind margin. Length (cf 9 ) 4.6-5.2 mm. ; 

 width 0.9-1.1 mm. Indiana parvus n. sp. 



The Indiana specimen associated above with the North Carolina 

 example of puncticollis, differs in having the longitudinal sulcus of 

 the head much deeper and more conspicuous, and the fifth elytral 

 stria is sulciform for a longer distance from the base; the sides of 

 the prothorax, also, are more parallel; as I am not entirely certain 

 of the identity of puncticollis, it is however necessary to avoid 

 formally defining it for the present. 



