Coleopterological Notices, VI. 441 



been thought to be identical are not even particularly closely re- 

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

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

 west coast beinsr 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 Avith 

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

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

 tradistinction to " Pala?arctic," which includes Europe, northern 

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

 identical genera and closely allied species in the Nearctic and 

 Palfearctic faunas shows plainly- that they have a common origin, 

 but there can be no doubt that the}^ are now sufflcienth^ differen- 

 tiated to warrant a continuation of the distinctive appellations. 



5. C. linillloides n. sp. — Suboval, strongly convex, moderately shining-, 

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

 pale testaceous, the posterior darker; antennje infuscate toward the middle; 

 pubescence moderately fine, dense and decumbent, dark in color; punctures 

 of the head and pronotum 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. Prothorax 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 moderately and not very abruptly promi- 

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

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

 and the apex scarcely at all blunt. Elytra not quite as long as wide and biat 

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

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

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

 reticulate. Abdomen gradually tapering, the sette 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 strongl}'^ 

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

 ventral being eompletel}- 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 differs in its shorter antennae, with 

 the outer joints much more transverse. The epipleurre are nearly 

 flat throughout, being feebh* impressed only near the base. Three 

 specimens. 



