Albuquerque; Santa Fe) and Colorado (Canon City; Colorado 

 Springs). 



Suturalis Cr., described from Nevada, differs in no appreciable way 

 from typical lugens. 



A. punctatus Melsh. Proc. Acad. Nat. Sci. Phila., II, 1846, p. 27. 

 Rather obtusely oval, quite strongly convex, rufopiceous, margins clearer rufous, 

 surface usually distinctly aeneous; antennae, legs and epipleura rufous. Elytra 

 minutely reticulate and with sparse uniformly distributed extremely fine punctules, 

 the dorsal series of coarser punctures conspicuous but confused ; prothorax with 

 a few punctures at sides except at the front angles. Prosternal process elongate, 

 gently evenly convex, finely margined, the tip moderately acuminate; metaster- 

 num rather short, its length between the middle coxae and coxal plate scarcely 

 more than one-third the length of the latter; postero-apical angle of hind femora 

 distinctly laminate; hind tibiae without series of coarse punctures along the inner 

 margin. The inner spur of the hind tibia is very long in both sexes, exceeding 

 very noticeably the length of the first tarsal joint, and in the male is thicker, 

 more rapidly tapering at tip and more distinctly striate beneath than in the fe- 

 male. Protarsal claws of male a little shorter and stouter than in the female, 

 the anterior one with. a small basal angulation. Length 7 to 7.25 mm. 



This species ranges along the Atlantic coast from Massachusetts 

 (Nantucket) to Georgia. There are specimens from Staten Island 

 and Anglesea, New Jersey, in the Sherman collection. It is lacking 

 in the Washington, D. C. list but must occur there. Hamilton gives 

 it in the Southwest Pennsylvania list, as does Wickham for Iowa, but 

 the latter is probably in error, specimens sent me by Prof. Wickham 

 proving to be aeruginosus. 



A. aeruginosus Aube, Spec. Gen. 1838, p. 298. 



So greatly like the preceding species as to be almost inseparable except by means 

 of the male sexual characters, as indicated in the table of species. In addition 

 to the characters there set forth, it may be said that the middle tibiae of the 

 present species are more parallel sided, with the inner fimbriate margin percep- 

 tibly sinuate, in the male, while in punctatus the tibia gradually widens from base 

 to apex, the form being more triangular. In aeruginosus the posterior outline of 

 the hind thighs is evidently concave, and the apical angle seems in consequence 

 distinctly produced. This is more conspicuous in the male, but is also character- 

 istic in less degree of the female, and with care offers a means of separating the 

 two species when females alone are present, the femoral margin in punctatus 

 being almost straight or only very slightly sinuate near the apical angle. The 

 metasternum is even slightly narrower behind the middle coxa in aeruginosus 

 than in punctatus. Length 7 to 7.75 mm. 



Specimens in my collection bear labels Tyngsboro, Mass., Lakehurst, 

 New Jersey and Southern Pines, North Carolina, and this probably 

 indicates pretty accurately the range of the species in the Atlantic 

 region. From the Mississippi Valley I have seen specimens from 

 Highland Park (vicinity of Chicago) Illinois, in the Sherman collection, 

 and from Iowa City, Iowa, in the Wickham collection. 



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