ANNALS OF THE LYCEUM. 393 



reoushair; head with the transverse line between the antennae 

 obtuse, not prominent: antenna dark piceous, a little serrate 

 radix rufous: thorax elevated, convex, breadth equal to tin- 

 length : a longitudinal impressed line obsolete on the an 

 margin; posterior spines moderate : scute! orbicular : elytra with 

 impressed strias, which have small punctures : postpectus black- 

 ish : feet pale rufous. 



Length nine-twentieths of an inch. 



Unusually short and thick. It is very different from obt sus nob., 

 by its much more robust form, by having an impressed thoracic 

 line, and by its general color. 



[Belongs to Corymbites. — Lec] 



10. E. erosus. — Brownish-rufous; thorax with five indenta- 

 tions. 



Desc. Body entirely rufous, tinged with brownish, slightly 

 hairy: head with an impressed longitudinal line: antennae not 

 serrate, the joints short, terminal joint produced at tip and acute : 

 thorax short, decidedly broader than long, lateral edge much ar- 

 cuated, posterior angles short: base with an impressed line ex- 

 tending to the middle, with an abbreviated impressed line on 

 each side of it, not reaching the base; on each side of the middle 

 is a slight indentation: scutel small, orbicular, convex : elytra 

 rather deeply striated, striae with small punctures : beneath a little 

 paler. [259] 



Length two-fifths of an inch. 



Differs from lacunosus Fabr. in magnitude and color, as well as 

 in the disposition of the thoracic indentations, which in that 

 species are placed 2, 1, 2, whereas in the present species they 

 are 2, 3. I obtained it near the Rocky Mountains, whilst ex- 

 ploring that country with Major Long's party. 



[This is Anelastes Druryi Kirby (1817): the impressions of 

 the thorax excepting the dorsal line, are frequently want:, 

 Lec] 



11. E. vitudanus.— Dull reddish-brown ; thorax with tv. 

 dentations. 



Elater viridanw Mclsh. Catal. 



Desc. Head with an obsolete indentation on the vertex: an- 

 tennae serrate, second joint thicker but shorter than the third: 

 thorax longer than broad, slightly and gradually narrowed be 



