66 Journal New York Entomological Society. [Vol. vin. 



combined. The integuments are micro-reticulate and very finely 

 punctate, each puncture bearing a small decumbent hair, these how- 

 ever being a little longer and more conspicuous than in Rypobius. 

 The scutellum is well developed, with broadly parabolic outline, and 

 the elytral suture is not at all margined. The wings are well de- 

 veloped, the fringing hairs very short. As in some species of Ortho- 

 perus, especially scutellaris, there is a feeble impressed longitudinal 

 line on each elytron near outer fifth or sixth, extending from the base 

 for a short distance : — 



Oval, convex, moderately shining, brownish-testaceous in color throughout, the pro- 

 thorax moderately developed, the base broadly parabolic, the sides strongly con- 

 vergent, moderately arcuate and continuous in curvature with those of the elytra; 

 punctures not distinctly visible under a hand lens of moderate power. Length 

 0.95 mm.; width 0.8 mm. California brunnea, sp. nov. 



Orthoperus Steph. 

 The species of this genus are among the most minute of the Coleop- 

 tera, and may be readily recognized by their oval, moderately convex 

 form, exposed head and 9-jointed antennae, the fifth joint being gen- 

 erally notably longer and sometimes thicker than the sixth. The 

 epipleurae are represented by a narrow side margin of the descending 

 flank, delimited by a fine line. The integuments of the body are 

 more or less shining, micro-reticulate and virtually glabrous. The 

 pronotum is very finely and feebly margined at base, the flanks not 

 greatly descending, becoming very narrowly and feebly reflexo-expla- 

 nate toward the basal angles, which are nearly right, not at all pro- 

 duced posteriorly and narrowly rounded. The scutellum is dis- 

 tinct though small and generally parabolic in shape. The species 

 are rather numerous but closely allied among themselves as a rule ; 

 those before me may be recognized as follows : — 



Elytral suture not margined except posteriorly 2 



Elytral suture finely margined to the scutellum 8 



2 — Elytra without trace of punctuation of any kind, the minute reticulation distinct ; 

 body much larger than usual, evenly elliptical, glabrous, pale brown in color 

 throughout, the metasternum impunctate and with very sparse and microscopic 



hairs. Length 0.82 mm.; width 0.62 mm. Colorado princeps, sp. nov. 



Elytral punctures wanting but replaced by very small, sparse and V-shaped scratches ; 



size rather large 3 



Elytral punctures normal, being well-defined points but jd ways very minute and sparse ; 



size small or very minute 4 



3 — Form somewhat oblong and narrowly oval, black throughout, the legs and antenna; 

 rufescent ; micro-reticulation distinct ; metasternal punctures sparse but distinct. 



