AMERICAN PHILOSOPHICAL SOCIETY. 569 



Body black, punctured ; antennae piceous ; first joint obconie, 

 not longer than the second and third together, which are equal ; 

 4-10 joints moniliform; last joint ovate acute ; palpi pale piceous; 

 terminal joint minute, that of the labial longer ; thorax oblong- 

 quadrate ; angles rounded ; glabrous line none ; elytra black-pi- 

 ceous, punctures not [454] deeply impressed; sutural striae dis- 

 tinct; feet rufous; thighs robust, particularly the anterior, which 

 have a prominent angle beneath near the tip ; tibice a little di- 

 lated and compressed, obliquely truncate at tip ; anterior pair 

 with an obtuse sinus on the inner side; tarsi, first joint not 

 longer than the second ; penultimate joint a little lobed beneath. 



Length about seven-twentieths of an inch. 



I have obtained but one specimen, which is a male. The 

 above description will show that it difi"ers much from any known 

 species. 



[Unknown to me. — Leg.] 



3. L. ciNCTUM. — Black, punctured ; antennae and mouth pi- 

 ceous ; feet yellowish ; posterior margins of the segments of the 

 abdomen rufous. 



Inhabits Missouri. 



Body black, punctured, hairy ; head above, punctures dense, 

 distinct, profound, furnishing hair ; on the front sparse, remote ; 

 antennae pale piceous, first joint nearly one third of the entire 

 length, third joint rather longer than the second and with the 

 others obconic, two terminal ones subglobular; labrum very 

 short at tip, punctured and setous, emarginate in the middle ; 

 mandibles piceous, prominent, strongly dentate in the middle; 

 palpi, maxillary prominent, pale piceous, terminal joint conic 

 acute, as large at base as the preceding joint, labial pale testa- 

 ceous, minute, throat with an impressed convex line ; thorax ob- 

 long, not wider than the head, punctures numerous, profound, 

 furnishing hairs, angles rounded ; scutel impunctured, elytra, 

 punctures somewhat transversely confluent, a little hairy ; feet 

 testaceous, thighs paler, anterior thighs near the tip abruptly 

 narrowed beneath, coxae piceous ; pectus impunctured ; postpectus 

 and abdomen densely and minutely punctured, punctures hairy; 

 segments of the latter with rufo-ferruginous posterior margins. 



Length less than two-fifths of an inch. 

 1834.J 



