324 Coleopterological Notices. 



sively finely, densely punctate, also sparsely and more coarsely punctate, these 

 punctures becoming tubercles toward the sides. Legs robust ; tibiae with long 

 coarse hairs and an extremely dense fringe of shorter ones externally ; spurs 

 very minute, slender, subequal ; tarsi very robust. Length 5.0—6.0 mm. ; 

 width 2.7-3.2 mm. 



California (Santa Cruz Co.). 



An ample series of this well-marked species has recently been 

 sent to me by Mr. Harford ; the vestiture is singularly complex. 



I/VCTUS Fab. 



The exterior apical angles of the anterior tibiae are acute and 

 slightly produced in Trogoxylon as well as Lyctus, the difference 

 between the two genera being so slight in this respect, that it will 

 not serve as a distinguishing character ; they may be separated as 

 follows : — 



Anterior coxa? contiguous or very narrowly separated Lyctus 



Anterior coxa? very widely separated Tl'OgOXylon 



The species of Lyctus within our territories may be easily iden- 

 tified as follows: — 



Elytra with even series of rather large, very shallow, rounded punctures, the 

 intervals each with a single uneven line of fine, coarsely setigerous punc- 

 tures striatum Melsh. 



Elytra with series of very minute, setigerous punctures, the punctures of the 



intervals coarse, deep, perforate, elongate and either confusedly arranged 



or disposed in two uneven lines. 

 Prothorax with the sides nearly straight, very feebly narrowed behind from 

 apex to base. 



Anterior coxa? separated by scarcely one-fourth their width ; antenna? 

 long and slender, with joints one to nine longer than wide, the tenth 

 not wider than long ; prothorax quadrate slightly narrower than the 

 elytra, with a rather pronounced elongate-oval discal impression. 



cavicollis Lee. 



Anterior coxa? separated by about one-third their width ; antenna? short 

 and robust, outer joints of funicle subqnadrate, not longer than wide, 

 tenth distinctly wider than long ; prothorax longer than wide, very 

 much narrower than the elytra, dull and densely punctate, the median 

 line very obsoletely impressed opaculllS Lee. 



Anterior coxa? distant by about one-half their width ; antenna? moderate, 

 the tenth joint very distinctly wider than long ; prothorax but very 

 slightly narrower than the elytra, distinctly wider than long, shining, 

 rather sparsely punctate, feebly, longitudinally impressed in the middle. 



planicollis Lee. 



