40 AMERICAN COLEOPTERA. 



Immature examples are often pale yellow, and it was doubtless 

 upon one of these that A. furtiva Say was based. The variation 

 shown in the punctuation of the prosternal side pieces as well as in 

 the prominence of the scutellar stria shows that great care should 

 be used in basing species solely upon these characters. 



It is known to me from Massachusetts, New York, New Jersey, 

 Pennsylvania, District of Columbia, West Virginia, North Carolina, 

 Ohio and Nebraska. 



23. A. glaciali»$ Manu. — Form oblong-ovate, moderately convex. Color 

 viridi-aineous or cupreo-feueous, shining. Head as wide as tlie thorax at apex; 

 eyes large, prominent; frontal grooves short, not extending forward on to the 

 epistoma ; antennae less than one-half the length of the body, {)iceous, the first 

 joint more or less rufous; palpi piceous. Protborax subquadrate, nearly twice as 

 wide as long, widest slightly in front of the middle, slightly wider at base than 

 apex; apex emarginate, the anterior angles rounded but prominent; median line 

 distinct, entire or slightly abbreviated in front; transverse impiessions obsolete; 

 basal impressions shallow, feebly, sometimes obsoletely, bifoveate; surface punc- 

 tate at base, sides and apex, the disk impunctate ; base slightly bisinuate 

 behind ; hind angles subacute and slightly prominent, not carinate. Elytra 

 distinctly wider than the thorax, striate, flattened on the disk ; striae entire, dis- 

 tinctly punctate, the punctures becoming obsolete toward the tij); scutellar stria 

 long; intervals flat. Body beneath black; prosternum with the side-pieces 

 punctate; meso- and nietasternal episterna, sides of metasternum and of first 

 two ventral segments coarsely punctured. Legs rufous, the tibiae externally and 

 the tarsi more or less piceous; middle and hind tarsi with the two basal joints 

 grooved on the outer side. Length .25-. 32 inch ; 6.25-8 ram. 



The males have no trace of punctured fovea or groove on the 

 prosternum at middle. In the females the elytra are finely aluta- 

 ceous. 



Originally placed in Bradytua by Mannerheim, it was removed to 

 Cyrtonotus by Putzeys, where it has since been allowed to remain, 

 although its facies is eminently that of the former subgenus, females 

 only having been known until recently in this country. Putzeys in 

 describing the only specimen (a male) in the Chaudoir collection, 

 refers to the lower tooth of the middle tibia as being more promi- 

 nent than the upper, and says that the hind tibiie are glabrous on 

 the inner side. In studying some half dozen or more males in the 

 collection of the National Museum, I have been unable to detect 

 any trace of teeth on the middle tibia;, while in .several specimens, 

 carefully cleaned, a sparse, fine pubescence is plainly discernable on 

 those of the posterior legs. Furthermore, the prosternum is very 

 distinctly margined at the tip, a character entirely unknown in 



