204 MEMOIRS ON THE COLEOPTERA 



This species is rather closely allied to harrisi, but is more ab- 

 breviated. In harrisi the frontal stria is transverse, or very feebly 

 sinuate, never having the abrupt reentrant angle of incurva, and 

 the humeral stria of the elytra is distinct, even and deep in about 

 basal fourth of the length, with the apical part simply an irregular 

 series of detached uneven lines. The form of the discal striae of the 

 two species is quite different, as shown above. 



My examples of harrisi are from Fayville, Massachusetts and 

 Peekskill, New York. One of them has very peculiar anterior 

 tibiae, due probably to excessive wear; the tibia is narrower than in 

 the normal form, the outer edge forming a broad even arc, perfectly 

 smooth and devoid of any trace of dentition, the tibiae bilaterally 

 similar. 



Psiloscelis millepora n. sp.- Elongate, parallel, with feebly arcuate 

 sides, moderately convex and shining, the body and antennal club black, 

 the legs somewhat piceous though virtually black; head finely but deeply, 

 closely punctate, the epistoma with a central rounded indentation, the 

 ambient carinate stria strong and entire, transversely subsinuate along 

 the epistomal base; antennal club broad and rounded; prothorax about 

 one-half wider than long, widest near basal third, where the sides are 

 arcuate, the latter thence slightly converging and nearly straight anteri- 

 orly, rounding apically, the angles broadly rounded; sinus deep, paralleled 

 by a distinct line, which rounds evenly at the sides and thence continues 

 posteriorly as the inner lateral stria, which partially forms the inner slope 

 of the convex surface between this line and the outer lateral, the latter 

 close to the margin and finely cariniform, curving inward apically; this 

 intermediate surface is narrow and very closely and minutely punctate; 

 general surface with fine but deep punctures, having about a third or 

 fourth of the diameter of the punctures in harrisi, the punctures close-set 

 though scarcely dense, but little larger laterally; scutellum smooth and 

 polished, equilatero-triangular; elytra nearly as long as wide, as wide as 

 the prothorax, the sides rounding in gradually behind, the combined apex 

 angularly sinuate; surface finely, closely punctate, nearly like the pro- 

 notum; striae shallow, as in harrisi, except that the humeral is wanting and 

 the subhumeral similarly occupies basal half only and is more deeply 

 impressed; lateral interval with some scattered coarser punctures pos- 

 teriorly, the sutural interval more finely punctured as usual in the genus; 

 pygidia coarsely, closely and shallowly punctate, with intermingled 

 minute punctures; under surface finely, sparsely punctate medially, the 

 sides and abdomen coarsely, the prosternal lobe margined at the sides 

 but not at apex, exactly as in harrisi; mesosternal sinus very shallow. 

 Length 7.2 mm.; width 4.4 mm. Wyoming (Laramie, June 12, 1893). 



At first I thought that this was the snbopaca of LeConte, de- 

 scribed from Nebraska and of which Dr. Horn added another speci- 



