1935] 
West Indian Carabidx 
177 
brooks and rivers. Also Puerto Rico: 2, Serralles Finca, 
Ponce, June 5, 1934, R. G. Oakley (U. S. N. M.). 
In my key (l. c.) this runs to Tachys abruptus Dark, but 
carib is much smaller, with sides of prothorax more 
sinuate basally and dilated joints of 8 front tarsi much 
narrower. 
Tachys trechulus n. sp. 
Convex, rather ventricose, but otherwise of normal 
Tachys (s. s.) form; piceous or rufo-piceous, with seri- 
ceous lustre but scarcely distinct iridescence; appendages 
brownish testaceous, antennae darker in basal V2- Head 
about 7/10 width prothorax, narrow and with elongate 
mandibles ; eyes only slightly prominent ; frontal sulci 
narrow, subparallel ; antennae moderate in length but with 
unusually long and conspicuous setae, middle joints about 
1/2 longer than wide; mentum biperf orate and toothed. 
Prothorax just over 1/3 wider than long; sides arcuate 
anteriorly, straight posteriorly, very faintly sinuate before 
the obtuse, finely blunted posterior angles; base somewhat 
oblique at sides; disk convex; basal transverse and median 
longitudinal grooves fine, anterior transverse impression- 
obsolete. Elytra oval, very convex, with narrowed, rounded 
humeri ; each with entire sutural stria recurved as usual 
and several additional striae faintly indicated on disk ; 
anterior dorsal puncture on 4th interval about 1/3 from 
base, posterior within hooked tip of recurved striole. Inner 
wings vestigial, strap-like, about 2/5 length of elytra. Two 
basal joints 8 front tarsus moderately dilated, with an- 
terior apical angles produced. Length 2.6 ; width 1.2 mm. 
Jamaica: holotype 8 (M. C. Z. no. 22018) and 1 $ 
paratype from Blue Mt. Forest Reserve, main range Blue 
Mts., 5,000-7,000 ft., Aug. 17-19; under deeply buried 
stones in damp forest. 
Unique, among the Tachys ( s . s.) with 2 joints each 8 
front tarsus dilated, in the atrophied wings and (conse- 
quently) ventricose elytra. 
Perileptus dentifer n. sp. 
Elongate, depressed ; rufo-testaceous to brownish piceous, 
legs paler, antennae scarcely so; upper surface pubescent 
