American Caraboidea 261 



smoothly limited at the sides in vittata, besides the larger head, 

 more transverse prothorax and more impressed elytral striae. 



Lebia vittata Fabr. — Smaller than the preceding but of somewhat 

 similar outline, shining, the head and prothorax testaceous, the elytra 

 black, with pale apex, each with an oblique pale vitta extending from the 

 humerus to the apical pale area near the suture, and with an external 

 pale vitta from the humerus to the pale apex, broadest at the middle, 

 where it occupies fully the two outer intervals; also with a very abbrevi- 

 ated common sutural vitta, extending a short distance behind the 

 scutellum; under surface pale rufous, the legs black, more than basal 

 half of the femora abruptly rufous; head nearly four-fifths as wide as 

 the prothorax, with large and very prominent eyes, the surface almost 

 smooth, feebly strigose toward the sides; antennae more than half as 

 long as the body, not very slender, black, the basal joint rufous, the 

 second and third piceo-rufous; prothorax a little less than twice as wide 

 as long, the rounded sides very converging apically and very moderately 

 reflexed, more widely so thence to the base, the hind angles sharply 

 defined; subtransverse strigillation feeble, the stria fine, deep, extending 

 only to the fine and feeble anterior transverse impression; elytra scarcely 

 a third longer than wide, gradually dilated behind, four-fifths wider than 

 the prothorax, the striae fine, smooth, the intervals not quite flat; dorsal 

 punctures distinct. Length 5.0-5.2 mm.; width 2.2 mm. North 

 Carolina (Southern Pines), — Manee. Two specimens. 



Dianchomena Chd. 



Disregarding modifications of the epilobes of the mentum and 

 tooth of the emargination, which are of comparatively slight im- 

 portance, I am of the opinion that this group of species should 

 be accorded full generic value. The prothorax differs rather 

 radically in structure and appearance from that of Lebia, being 

 rounded at the sides, more evenly and gradually narrowed basally 

 to the laterally much less developed basal angles, sometimes with 

 the merest trace of these angles, as in ahdominalis, and the side 

 margins are narrowly and more feebly and equally reflexed through- 

 out the length, giving to this important segment of the body a 

 very characteristic habitus. The basal angle near the pedicel is 

 sometimes remindful of Lebia, but it is very different in structure, 

 there being no distinct basal enlargement of the finer reflexed 

 margins. The elytra are diversified in coloration very much as 

 in Lebia. 



The species at present in my collection appear to be six in number 

 as follows, scapiilaris of Dejean, included by Horn, being a true 

 Lebia, as is also miranda Horn, in all probability: 



