Coleopterological Notices. 313 



granulato-reticulate, very minutely and sparsely punctate. Abdomen composed 

 of five nearly equal segments, the sutures strong and perfectly straight 

 throughout. Length 2.1 mm. 



South Carolina. Mr. Morrison. 



A single specimen of this species was kindly presented by Mr. 

 Schwarz. 



LASCOXOTUS Erich. 



This is without doubt one of the largest genera of Colydiidse, 

 and is particularly well represented in the Californian coast regions; 

 it is withal a clearly limited and but slightly composite genus, 

 although its species differ considerably in habit. The species be- 

 longing to the linearis group, for instance, are not found under 

 bark, but inhabit the leafy branches of trees, particularly pines, 

 and it will be observed that the general form of these species is 

 more cylindrically convex than those of subcortical habits. 



Although the structural characters of the under surface are com- 

 paratively constant, there is very great variety in the sculpture of 

 the upper surface, which sometimes becomes very complex. 



li. pertenuis n. sp. — Very slender, parallel, rather convex, dull and 

 scabrous, pale brownish-ferruginous throughout ; pubescence short, robust, 

 rather sparse but more conspicuous in single narrow lines along the crests of 

 the elytral costse. Head rather large, a little wider than long, slightly con- 

 stricted at base, fiat above, coarsely, densely and indistinctly punctate, the 

 epistoma surrounded posteriorly by a deeply impressed, arcuate groove ; eyes 

 rather large, moderately convex, the tempora about one-half as long ; antennae 

 short and robust, the club oval, strong, the ninth joint much shorter and 

 narrower than the tenth. Prothorax a little longer than wide ; base equal in 

 width to the head ; apex a little wider, broadly arcuate ; sides just visibly 

 and broadly sinuate ; basal angles not at all rounded in the male, rounded in 

 the female ; disk very coarsely, rather densely but indistinctly punctate, the 

 interspaces very dull ; pubescence forming an intricate and feebly marked 

 tracery ; surface broadly, feebly impressed along the middle, the impression 

 becoming narrower and vanishing toward base, where, on each side of it, there 

 is a narrow elongate feeble impression. Elytra about two and one-half times 

 as long as the prothorax and just visibly wider, very distinctly wider than the 

 base of the latter ; humeri narrowly rounded ; apex evenly rounded in circular 

 arc ; disk cylindrically convex, each with four fine, feebly elevated, entire 

 ridges, the intervals each with two approximate series of coarse, very close-set, 

 non-setigerous punctures, the setna borne by very minute punctures at the 

 sides of the interval separating the series, one for every coarse puncture, the 

 setse subrecumbent and directed obliquely toward the ridges. Abdomen rather 

 coarsely but sparsely and indistinctly punctate. Length 2.4-2. t> mm. 



