Coleopterological Notices, VI. 441 



been thought to be identical are not even particularly closel}' re- 

 lated to each other. Tiiese mistakes principally refer to the fauna 

 of eastern North America, the proportion of common forms of the 

 west coast being much greater. In fact, if we omit the well 

 known cosmopolitan species and those which have been sporadi- 

 cally and locally introduced, the fauna of eastern America in- 

 cludes but a very small actual number of species identical with 

 their homologues of Europe, and there is no good reason why the 

 term "'Nearctic" should not be employed for this region, in con- 

 tradistinction to " Pahijarctic," which includes Europe, northern 

 Asia and the west coast of North America. The large number of 

 identical genera and closel}- allied species in the ISearctic and 

 Palnearctic faunas shows plainly that they have a common origin, 

 but there can be no doubt that the}' are now sufficiently differen- 

 tiated to warrant a continuation of the distinctive appellations. 



5. C liillllloides ii. sp. — Suhoval, strongly convex, mocleratelj' shining-, 

 blackish throughout, the apices of the ventral segments slightly paler; legs 

 pale testaceous, the posterior darker; autennie iufuscate toward the middle; 

 pitbesceuce moderately fine, dense and decumbent, dark in color; j)unctures 

 of the head and prouotum extremely fine, occupied by the base of the hairs ; 

 those of the elytra not distinct. Head barely one-half as wide as the prothorax, 

 the epistoma only moderately transverse; antennae extending slightly beyond 

 the base of the prothorax, very stout and gradually incrassate, the penultimate 

 joints rather strongly transverse. Prothornx rather elongate, not more than 

 two-fifths wider than long, the .apex about three-fifths as wide as the base; 

 sides evenly arcuate; basal angles moderatel}' and not very abruptly promi- 

 nent posteriorly, slightly more than right and not much rounded. Scutellum 

 large, triangular, slightly wider than long, with the sides very feebly arcuate 

 and the apex scarcely at all blunt. Ehjtra not quite as long as wide and but 

 slightly longer than the prothorax, the sides scarcely visibly convergent from 

 base to apex and extremely feebly but evenly arcuate; apex very feebly 

 angulato-emarginate; disk, rather coarsely imbricate, the imbrications feebly 

 reticulate. Abdomen gradually tapering, the settle very short, sparse and in- 

 conspicuous except at apex. Length 1.8 mm. ; width 1.2 mm. 



Iowa. 



Readily distinguishable from the preceding, which it strongly 

 resembles in habitus, by the sexual characters of the male, the hfth 

 ventral being completely unmodified and the sixth having a broad 

 shallow apical sinuation, rounded at the bottom and four or five 

 times as wide as deep ; it also dirters in its shorter antennjc, with 

 the outer joints much more transverse. The epipleura' are nearl}- 

 flat throughout, being fee'ily imi)ressed only near the base. Three 

 specimens. 



