Goleopterological Notices, VII. 445 



-extremely minute and short but stiff and erect seta; clypeus smooth and 

 almost vertical, its anterior margin simple; maxillary palpi normal. Antennse 

 slender, rather longer than the head and prothorax, the club moderately stout 

 and very gradually formed ; second joint obconic, fully 3^ longer than wide, 

 stouter and distinctly longer than the next two and a little thinner than the 

 first; three to six subequal in size throughout and about as long as wide; 

 seventh scarcely }^ wider, as long as wide and subglobular; eighth subglobu- 

 lar, scarcely % wider than the seventh and almost as long as wide; ninth }-^ 

 thicker, globular, as long as wide; tenth a little thicker and very slightly 

 wider than long; eleventh still thicker, obtusely and obliquely ogival, not 



■ quite as long as the two preceding; joints eight to eleven together as long as 

 two to seven. Prothorax conic, with feebly arcuate sides, not quite as long as 

 wide; apex % as wide as the base, the latter barely }^ wider than the head; 

 surface even and convex, not impressed near the base. Elytra oval, % longer 

 than wide, fully twice as long as the prothorax and about % wider, widest be- 

 fore the middle, the sides broadly arcuate; humeral plica and attendant im- 

 pression extremely small and feeble; inner fovea feeble and alone visible ; sub- 

 sutural impressions obsolete, the suture unmodified. Abdomen normal in 

 structure. Legs rather short but slender; femora moderately clavate; hind 

 tarsi slender, with the first four joints subequal among themselves. Length 

 0.65-0.75 mm.; width 0.26 mm. 



Pennsylvania (Westmoreland Co.). Mr. Schmitt. 



The form described above is the male, and the female differs in 

 having the elytra rather shorter and relativel}^ more dilated, the 

 head slightly smaller, circularly rounded behind the eyes which 

 are moderate in size, anterior and visible from above, and in hav- 

 ing the penultimate joints of the antennse shorter and more trans- 

 verse; the middle of the vertex is however broadly impressed, 

 nearly as in the male, and the antennal prominences are relatively 

 more marked, but there is no frontal punctulation. 



This and the preceding are by far the most minute of the entire 

 genus, and differ besides in presenting strongly marked cephalic 

 modifications in the male, but they are perfectl}^ normal members 

 of the genus in general structure. 



59. C trinifer n. sp — Somewhat narrowly suboval, polished and sub- 

 impunctate, piceous-black, the head and antennse paler and dark rufo-tes- 

 "taceous; legs pale luteo-testaceous; pubescence rather abundant, pale, coarse, 

 rather short recurved and almost even on the elytra. Head moderate, dis- 

 tinctly wider than long, almost evenly elliptical, the eyes small and but 

 slightly convex ; antennal prominences large and distinct, separated by a de- 

 pression; clypeus even, the median tooth distinct, narrow and rather acute. 

 Antennse. moderately stout, slightly longer than the head and prothorax, the 



■ club very abrupt, strong, short, 3-jointed and paler in color; second joint stout, 



A-NNALS N. Y. Acad. Sci., IX, May, 1897.— 30. 



