62 AMERICAN COLEOPTEEA. 



scribed by Maunerheim and Motschulsky, aud as these author's de- 

 scriptions are very meagre and their types in European collections, 

 it has been impossible to identify all of the species described by them. 

 B. kuprianovi and biimpressurn, of Manuerheim, remain unidentified, 

 while ovipenne Mots., although unknown to me in nature, is placed 

 as a synonym of kuprianovi on the authority of Gemminger and 

 Harold. To hreve Mots. I have referred several specimens, which, 

 after careful study of his and of Mannerheim's descriptions, seem, 

 without much doubt, to belong to that species. 



The following table of those known to me has been prepared with 

 the ho}5e that it may afford some assistance in their separation : 



Large species. 



Form depressed ; thorax slightly wider than long, as wide at base as apex ; 

 elytra finely striate, the striie entire, very finely or obsoletely punc- 



tulate ; legs piceous. Length .27-.35 inch planaftum Lee. 



Smaller species [less than .25 inch.] 



Elytra with the strije impunctate, entire 2. 



Elytra with the striae punctate 4. 



2. Elytra distinctly wider than the thorax 3. 



Elytra only slightly wider than the thorax, finely striate, the outer strise very 



fine, especially towards the tip ; depressed ; black, more or less bronzed ; 

 thorax nearly twice as wide as long, sides arcuate to base, hind angles 

 obtuse, but not rounded ; legs black. Length .17-. 23 inch. 



incerf uin Mots. 



3. Form depressed. 



Elongate ; thorax distinctly narrower at base than apex, sides arcuate in 

 front, at most obsoletely sinuate behind, hind angles obtuse, but not 

 rounded: elytra usually brownish, moderately deeply striate; legs 



rufo-piceous. Length .16-. 19 inch simplex Lee. mss. 



Slightly broader; thorax scarcely narrower at base than apex. 



Sides of thorax arcuate in front, sinuate behind, hind aiigles rectangular; 

 elytra often tinged with brown, rather more finely striate; legs vary- 

 ing from rufo-piceous to black. Length .16.20 inch. 



plaiiiusciiliiin Mann. 

 Smaller: sides of thorax arcuate in front, obsoletely sin\iate behind, hind 

 angles sub-obtuse ; elytra moderately deeply striate ; color bluish black ; 

 legs black, tibise and tarsi sometimes piceous. Length .12-. 16 inch. 



coinplanuliiin Mann. 

 Form slightly convex. 



Elytra nearly oval ; thorax narrower at base than apex ; form elongate. 

 Thorax slightly wider than long, hind angles rectangular; elytra finely 

 striate, the striae less marked at sides and tip ; color seneo-piceous or 

 nearly black, elytra usually tinged with brown ; legs rufo-piceous or 



piceous. Length .17- .21 inch . f'liiiereuin Lee 



Thorax about one-half wider than long, less convex, hind angles subacute ; 

 elytra more deeply striate, scarcely less deeply at sides and apex ; color 

 black, strongly tinged with blue; legs black, tibise and tarsi more or 

 less piceous. Length .19-.24 inch iiigro<i-fleruleiiin n. sp. 



