640 Goleopterological Notices, VII. 



and more than twice as wide as the last joint of the funicle. Prothorax nearly 

 % wider than long, widest and obtusely angulate at the sides at basal %, the 

 sides thence very feebly convergent and nearly straight, becoming arcuate near 

 the prominent but rounded apical angles anteriorly, and much more convergent, 

 becoming sinuate near the base posteriorly, the basal angles obtuse but promi- 

 nent and not blunt; surface transversely convex, broadly concave near the re- 

 flexed side-margins especially anteriorly, the punctures moderately coarse and 

 numerous but distinctly separated, becoming sparse or partially absent along 

 the median line and near the side-margins. Scutellum wholly impunctate. 

 Elytra short, scarcely % longer than wide, not obviously wider than the pro- 

 thorax and about 2% times as long, the apex semicircularly rounded; humeri 

 right and slightly denticulate, the intra-lfumeral impression feeble; strise 

 moderately coarse, rather feebly impressed, closely and strongly punctured, 

 subobliterated toward the humeri, stronger behind but wholly wanting be- 

 hind the rather pronounced subapical swelling; intervals closely and strongly 

 punctured, nearly flat, the punctures sparse and more serial toward the suture. 

 Legs rather slender, the hind tarsi distinctly shorter than the tibise. Length 

 10.9 mm. ; width 4.1 mm. 



Washington State. 



The male type represents a species allied to depressus, but 

 smaller, shorter in form, with finer, more superficial and smoother 

 elytral sculpture, more concave and fimbriate margins of the pro- 

 thorax and blacker coloration. 



Passalin^. 



Some years ago I received small sets of species in this sub- 

 family from two sources. The larger number were taken by Mr, 

 Erich Wittkugel in the vicinity of San Pedro Sula, Honduras, on 

 the Atlantic slope, and the remainder by Mr. Baron, in the Mexi- 

 can state of Gruerrero,on the Pacific side. Only one of the fifteen 

 species examined proves to be common to the two regions, indi- 

 cating in some degree the mutual distinctness of the Atlantic and 

 Pacific faunas even in this very constricted portion of the conti- 

 nent. 



The arrangement of the genera proposed by Mr. Bates in the 

 " Biologia," which is based primarily upon the relative size of the 

 prothorax and elytra, even should it prove not entirely natural^ 

 is at least far more convenient than that of Kaup, the classifica- 

 tion of the latter being mari'ed in addition by a most original and 

 imaccountable assumption, that each and every genus would be 

 found ultimately to be composed of five species. In some genera, 

 possessing a number of species, this premise even led Dr. Kaup 



