American Caraboidea 199 



punctures obsolete gradually toward apex and the intervals dis- 

 tinctly convex, or ( 9 ) fine and not impressed and finely punctate, 

 the punctures obsolete from slightly behind the middle and the 

 intervals flat; scutellar stria wanting; dorsal puncture coarse, 

 adjoining the second stria just behind the middle; lateral parts of 

 the elytra nearly as in the preceding, the declivous part often 

 rufescent; outer striae obsolescent basally; anterior male tarsi 

 much less dilated than in the preceding. Length (d^ 9 ) 9-3-9-8 

 mm.; width 3.3-3.4 mm. Alabama (Mobile), — Loding. 



lilliputicus n. sp. 



The species alabamensis and lilliputicus constitute a very isolated 

 group of this genus, peculiar apparently to its extreme southern 

 range, and doubtless many more remain to be discovered. The 

 species which I formerly identified as fatuus Lee, based entirely 

 upon the female, proves from the male recently sent me by Mr. 

 Dury, to be none other than sodalis Lee, which synonymy had 

 already been published. 



Percosia Zimm. 

 Of the described species of this genus I now have series of males 

 and females of latissima, ohesa and exiensa, and, by juxtaposition, 

 the specific differences are seen to be very distinctly marked; in 

 diffinis Lee, the eyes are flatter, and in all four the strial intervals 

 are very nearly flat; in ventricosa, from Long Island, the body is 

 shorter and broader, with coarser striae and slightly conv^ex intervals, 

 and, in the following, the latter become decidedly convex, con- 

 spicuously so posteriad: 



Percosia sulcatula n. sp. — Rather smaller in size, convex, shining, 

 black, the elytra slightly alutaceous in the female; under surface piceous- 

 black, rufous at the abdominal tip, the legs rufous; head rufescent, 

 somewhat longer than wide, scarcely half as wide as the prothorax, the 

 neck scarcely at all constricted; eyes well developed but only very 

 slightly convex; anterior impressions short, slightly diverging; mandibles 

 short; palpi slender, pale, the last two joints equal; antennae rufous, 

 not quite as long as the head and prothorax, the latter three-sevenths 

 wider than long, the sides sharply but not widely reflexed, parallel and 

 nearly straight in basal half, rounding and converging anteriorly; oblique 

 latero-basal ridge obtuse but high; basal impressed area densely punc- 

 tured except medially; anterior transverse impression rather distinct, 

 smooth, the stria deep, attaining base but not quite the apex; elytra 

 short, a fourth longer than wide, a fifth or sixth wider than the pro- 

 thorax, the sides feebly and very gradually converging basally, the 

 subapical sinus short, distinct; striae coarse, groove-like, feebly im- 

 pressed, strongly so behind, very feebly and indefinitely punctulate, the 



