74 Bulletin of the Brooklyn Entomological Society Vol. XI 



Cr. and might at first be taken for a badly rubbed specimen of 

 the same. It, however, differs markedly as regards a number 

 of features, such as in its greater flatness, having only one half 

 the dorso-ventral diameter of the other; its much more greatly 

 developed thoracic and elytral margins, the elytral margin in this 

 species being wide as in the thorax, while in the common species, 

 it is quite narrow ; in having the anterior margin of the thorax 

 rather deeply emarginate in contrast to the straight margin of 

 the other; in being much less densely and coarsely punctured, 

 especially as regards the elytra, the punctuation in G. pilosula 

 Cr. being very coarse and dense ; in having a very fine, sparse, 

 and hardly perceptible pubescence as against a rather dense and 

 conspicuous one; and in having differences in antennal structure 

 such as broader and shorter intermediate joints in contrast to 

 the narrower and more elongate ones in the other species. 



Galeruclerus trilobatus Van Dyke. Certain intermediate phases of the 

 above, which have recently been seen, have convinced me that this is no 

 more than a variety of G. fasciata Lee, so it must accordingly be reduced 

 to its proper status. 



The new species of Cossonus described in the following pages 

 will make necessary certain changes in my table for the separa- 

 tion of the species. These will be as follows : Just in front of 

 subareatus Boh. and including it, change the table to read : 



Basal portion of rostrum longer than dilated portion. 



Neck of rostrum decidedly longer than apex, dilated portion as long 



as broad subareatus Boh. 



Neck of rostrum barely longer than apex, dilated portion transverse. 



pacificus n. sp. 

 After texanus n. sp. add 

 Head with prominent eyes, projecting beyond border, rostrum convex and 

 depressed apically, a fovea on both vertex and vostrnva. .schwarzi n. sp. 



and after concinnus Boh. add the following sentences, the first of 

 which should be of equal standing with that following concinnus: 



Rostrum with apical portion just perceptibly wider than basal. Thorax 

 narrower than elytra. 



Rostrum elongate, thorax and elytra very coarsely and densely cri- 

 brately punctate hubbardi Schwarz. 



Rostrum short, thorax with deep triangular depression in median por- 

 tion, the discal boundaries almost smooth fossicollis n. sp. 



