202 
Psyche 
[December 
emarginate; antennae with 3rd joint equal to 4th, 7th about 
opposite base prothorax. Prothorax subcordate, 1/5 or % 
wider than long, moderately narrowed in front and behind ; 
base truncate, *4 wider than apex; sides arcuate through 
most of length, briefly and not strongly sinuate basally, 
narrowly margined, lacking anterior seta as usual ; basal 
angles slightly obtuse, narrowly blunted; disk convex, im- 
pressed and foveate as usual, rather closely punctate and 
slightly alutaceous across base, sparsely punctate and shin- 
ing anteriorly, with narrow impunctate area each side near 
middle. Elytra about 2/5 wider than prothorax, convex, 
very slightly narrowed basally; humeri rounded but not 
obliterated, marginal line arcuate ; striae rather fine, faintly 
punctulate ; intervals nearly flat, very finely granulate- 
opaque, pubescence shorter and less obvious than usual. 
Prosternum margined at apex ; metepisterna about 14 long- 
er than wide; sides of body below and entire abdomen 
rather finely punctate-pubescent. Femora and tarsi not 
densely pubescent above; $ with front femora not modi- 
fied, middle tibiae not pubescent at apex. Length 11-12.5; 
width 4. 1-4.8 mm. 
Jamaica: holotype s (M. C. Z. no. 22024) and 8 para- 
types from Ocho Rios, Aug. 20-24; 1 paratype each from 
Rio Cobre, 5 mi. above Spanishtown, Aug. 29 and between 
Kingston and Spanishtown, Aug. 29 ; all taken under cover 
beside ponds, swamps, or rivers. 
Very close indeed to Chiasmus viridicollis Reiche and C. 
obscuripennis Chev., both of Mexico and both represented 
by small series in our collection (the two may be identical), 
but differing in the conspicuously shorter pubescence of 
elytra. 
Stenocrepis (s. s.) palustris n. sp. 
Subparallel, moderately broad and convex; black, mod- 
erately shining, only slightly aeneous with margins of elytra 
scarcely more so; lower surface and legs piceous; tarsi, 
palpi, and bases of antennae more or less rufescent. Head 
a little over i/2 width prothorax, but appearing narrower ; 
formed as in 12-striatus (Chev.) and similarly finely, close- 
ly subpunctulate ; mentum tooth short, wide, blunt. Pro- 
thorax a trifle over 2/5 wider than long, moderately strong- 
