COLEOPTEUA, 73 



together, slender, three basal joints carinate posteriorly and glahrous, carina 

 of the first becoming obsolete at two-thirds its length from the base, basal 

 joint sub-cylindrical, twice as long as wide, bearing near the tip a seta as 

 long as the first two joints together, second joint one-third as long as the 

 third ; palpi truncate at tip, flattened, truncation in the form of a narrow 

 rectangle, the surface of which is deeply excavated; labial very slender 

 cylindrical, second joint more than one-third longer than the third, bearino- 

 two long setae ; maxillary palpi rather long and stout, entirely glabrous 

 second joint very finely strigose, third slightly longer than the fourth ; 

 mentura tootli vei'y broad, squarely truncate or very feebly sinuate at tip ; 

 ligula rounded at tip, broadly swollen along the middle, bearing along the 

 apical edge, which is retlexed, two setae. Prothorax widest at the middle, 

 where it is scarcely' one-third wider than long; sides very strongly and 

 nearly evenly arcuate throughout ; apex slightly shorter than the base ; 

 basal angles obtuse, narrowly rounded, ajjical slightly acute, narrowly 

 rounded ; base transverse, apex broadly emarginate ; disk rather feebly 

 convex, transversely creased ; median line strong, very feeble just behind 

 .the centre of the disk ; basal impressions rather finely and irregularly punc- 

 tate, the inner ones more than twice as long as the outer, and, with the 

 median line, dividing the disk nearly equally ; margin feebly reflexed, be- 

 coming much more broadly and feebly so posteriorly ; posterior angles havino- 

 an erect seta, anterior setae well within the edge. Elytra at base slightly 

 narrower than the pronotum ; sides parallel and rather strongly arcuate for 

 three-fourths the length from the base ; disk rather acutely rounded behind, 

 moderately convex ; striae very deeply impressed, very feebly and distantly 

 punctulate ; intervals strongly convex, very finely and irregularly creased 

 and finely alutaceous, third interval having six distinct punctures near the 

 third stria ; basal carina strong, attained by all the striae except tiie scutellar ; 

 three-fourths longer than the head and pronotum together. Legs long and 

 slender ; first four joints of the posterior tarsi strongly grooved ; abdomen 

 punctate toward the base, strongly convex, last segment not modified. Meta- 

 sternum and its episterna coarsely, deeply, and coalescently punctate, the 

 latter longer than wide. Length 13.0 mm. ; width 5.0 mm. 



Willets Point, New York Harbor. 1 %. 



This very fine species may be [)lace(l at present immediately after 

 lucublandus in Dr. LeConte's table of Pterostichus ; it may be dis- 

 tinguished at once from that species by many characters, chief amongst 

 which may be mentioned the verj' strongly tn-cuate sides of the pro- 

 thorax, very black legs and tarsi, and the six dorsal punctures. 



CRATACAIVTHUS Dejean. 



On carefully looking over my specimens of this genus, which are 

 generally included under the name dubius, it appears to me evident 

 that there are several distinct species which may be separated by the 

 following table : — 



