214 Trans. Acad. Sci. of JSt. Louis. 



ilar but larger and has the legs colored as in pwHtana. I have 

 assumed that the head in brunnipes is distinctly wider than 

 the prothorax but appear to have made no note on this point ; 

 the original description of LeConte is wholly inadequate. 

 The species described in the table under the name angusiiceps 

 is founded upon a specimen which I formerly regarded as the 

 male of rotundicep)S (Bull. Cal. Acad. Sci., 6, p. 218) but 

 more careful comparisons indicate the impropriety of this 

 association. There are before me two forms allied closely to 

 hrunnipes, which are left undescribed for the present ; they 

 occur at Lake Superior and in Montana (Kalispell). 



Scopaeopsis n. gen. 



This genus is one of the most isolated of the Scopaei, not only 

 in general habitus and comparatively large size of its species, 

 but by reason of labral structure, long slender tarsi — a char- 

 acter shared only with Scopaeodera — and elaborate secondary 

 sexual modifications of the male. The integuments are clothed 

 rather sparsely with very fine short and decumbent hairs and 

 the punctures are, except on the elytra of certain species, 

 excessively minute or subobsolete, being practically tilled by 

 the bases of the minute hairs. The species are moderately 

 numerous, inhabiting the entire eastern parts of our territory, 

 not known to me to extend west of the 100th meridian and 

 entirely unknown to the Sonoran and Pacific coast faunas. 

 The five species in my cabinet may be indicated as follows : — 



Elytra large, as wide as the head or wider 2 



Elytra smaller, more or less distinctly narrower than the head ; male sexual 

 characters complex 5 



2 — Male sexual modifications comparatively simple 3 



Male sexual characters complex; elytral punctures stronger and rugose... 4 

 3 — Subparallel, rather convex, moderately shining, the pale pubescence 

 rather conspicuous, piceous-black, the head and pronotum dusky tes- 

 taceous, the antennae dusky, pale toward tip; legs slender, the femora 

 pale honey-yellow, the knees, tibiae and tarsi dusky or piceous; head 

 scarcely longer than wide, the eyes well developed, convex and promi- 

 nent, at about twice their length from the base, measured longitudinally 

 as usual, the sides behind them very feebly converging, then broadly 

 rounded into the semicircular base; antennae not as long as the head 

 and prothorax, slender, not distinctly incrassate, the joints much more 



