70 
Psyche 
[June 
this new species from all previously known Homopterus. The an- 
tennae are intermediate in form within the genus, with the posterior 
edges of the flagellar segments not so straight as in kriegi Reich- 
ensp., holivianus Kolbe, or hrasiliensis Westw., but not so deeply 
emarginate as in steinhachi Kolbe etc, (cf. Reichensperger 1938, 
Figs. 1-8). As compared with H. hondurensis Dari., which is of 
about the same size and general appearance and which also occurs 
on Barro Colorado Island (five specimens from various sources in 
M. C. Z. and U. S. N. M.), the present new species has a more 
cordate prothorax, slightly different antennae, and more prominent 
post-ocular tubercles, and the new species lacks the light but dis- 
tinct pubescence of hondurensis. 
I suspect, incidentally, that my Homopterus hondurensis (1937) 
and H. kriegi Reichensperger (1938) are the same, but a comparison 
of specimens will be necessary to establish the synonymy. 
Paussus occlusus n. sp. 
Fig. 2 
Form as figured, convex; color light brown, redder anteriorly, 
with the following parts black or piceous : anterior and supra-ocular 
callosities of head, lateral and apical marks of elytra, lower sur- 
faces of head and prothorax and (in part) mesothorax, and main 
portions of appendages ; surface of body above (including elytra) 
and below dull, microscopically wrinkled; pubescence above of 
rather sparse, short, slightly curved, slightly thickened, yellowish 
hairs (this type of pubescence lacking in depressions of back of 
head and of pronotum, and rubbed off inner portions of disk of 
elytra) ; pubescence below of more inconspicuous, minute, pale hairs. 
Head: front with 2 longitudinal, parallel ridges anteriorly, curving 
in and nearly meeting above bases of antennae, and with 4 tubercles, 
1 median, 1 occipital, and 1 above and behind each eye, each supra- 
ocular tubercle with a semicircular impression concave inwardly; 
antennae as figured, flagellum sub-cylindrical, with fine raised 
margin along anterior edge, and with the vestige of a longitudinal 
sulcus posteriorly under a slight ridge which shows traces of seg- 
mentation although the bottom of the sulcus does not; surface of 
both basal and flagellar parts of antennae closely, coarsely punctate, 
each puncture with a short, slightly thickened, pale hair ; labial and 
especially maxillary palpi broad, moderately flattened, more finely 
sculptured and pubescent than antennae. Prothorax deeply, trans- 
