164 
Psyche 
[December 
regular arc with the pronotum ; surface densely alutaceous, 
sparsely, coarsely, shallowly punctate; front with the sides 
parallel; clypeus not transversely depressed, feebly con- 
stricted between the antennal cavities, feebly, broadly emar- 
ginate in front. Antenna extending beyond base of prono- 
tum, sparsely clothed with long, erect, whitish hairs; first 
and second segments globuse, subequal in length; third dis- 
tinctly narrower, feebly expanded at middle, subequal in 
length to the second ; the following segments rather robust, 
subequal in length, slightly triangular, the last segment 
longer than the tenth, and acute at apex. 
Pronotum strongly, uniformly convex, feebly, transversely 
flattened along base, twice as wide as long, distinctly nar- 
rower at apex than at base, widest behind middle; sides 
strongly, arcuately converging anteriorly, slightly converg- 
ing near posterior angles; when viewed from the side the 
marginal and submarginal carinse feebly arcuate, widely 
separated for nearly their entire length, and united at base, 
the marginal carina more or less obsolete anteriorly; an- 
terior margin feebly, arcuately emarginate; base trans- 
versely truncate; surface feebly alutaceous, sparsely, 
coarsely, shallowly punctate. Scutellum triangular, acute at 
apex. 
Elytra as wide as pronotum at base; sides parallel from 
humeral angles to apical third, then arcuately converging 
to the tips, which are conjointly broadly rounded ; humeri not 
prominent; disk uniformly convex, with a shallow, trans- 
verse depression at base of each elytron; surface feebly, 
sparsely punctate, the intervals nearly smooth. 
Abdomen beneath feebly convex, feebly reticulate, vaguely 
punctate, clothed with a few short, erect, inconspicuous 
hairs ; basal sternite with a round, median depression, which 
is densely clothed with long, erect hairs ; last visible sternite 
broadly rounded at apex. Prosternum moderately convex, 
coarsely, sparsely punctate; anterior margin subtruncate; 
prosternal process broad, the sides parallel, and broadly 
truncate at apex. Femora moderately robust. Tibiae straight 
and slender. 
Length 1.25 mm., width 0.6 mm. 
Type locality . — Maricao Forest, at an altitude of 2,000 to 
3,000 feet, Puerto Rico. 
