178 ACADEMY OF NATURAL SCIENCES 



2. L. SULCIROSTRIS. — Cinereous ; rostrum trisulcated, trans- 

 versely indented at base ; elytra striate. 



Inhabits Arkansa. 



Body densely covered with minute, cinereous scales : head with 

 black punctures; transversely [ 317] indented or contracted at 

 the origin of the rostrum : rostrum trisulcated, grooves profound, 

 middle one dilated, wider before : mouth and club of the an- 

 tennae blackish : thorax inequal, with irregular rugae and punc- 

 tures; a longitudinal, impressed line: elytra acutely striated, and 

 with dilated, slightly indented punctures all covered with cine- 

 reous scales : beneath immaculate : anterior feet more robust. 



Length seven-twentieths of an inch, exclusive of the rostrum. 



Found in the same districts Avith the preceding species, which 

 it resembles, but is smaller ; the elytra are destitute of blackish 

 lines, and the punctures and strise are altogether diflferent. 



[Also an Ophri/astcs. — Lec] 



3. L. IMBRICATUS. — Body covered with minute scales, punc- 

 tured ; a profound, frontal puncture. 



Inhabits Arkansa. 



Body covered with dense, minute, somewhat imbricated scales, 

 without intervals; above dusky brassy or blackish, punctured: 

 head with a profound puncture between the eyes : rostrum with 

 a dusky line in the middle : thorax, a dorsal, slightly impressed, 

 punctured line, and several dilated, indented punctures covered 

 with scales; a dilated, cinereous, dorsal line : elytra with very 

 slightly impressed stride containing profoundly impressed punc- 

 tures; sides and tip white, the latter exhibiting an undulated 

 outline above; three subequidistant, equal, white spots each side 

 of the suture, [318] and another at the middle of the base; an 

 oblique line from behind the humerus terminates at the middle. 



Length three-tenths of an inch. 



Near the liocky Mountains, and on the Missouri. This species 

 varies in depth of coloring, and the cinereous, subsutural spots 

 are sometimes confluent with branches from the margin, so as to 

 form three cinereous bands, but I believe that the spots at base 

 are always insulated. 



[Belongs to Epicxrus. — Lec] 



4. L. tessellatus. — Imbricate, cinereous, varied with brown- 



[Vol. III. 



