42 PSELAPHIDA. 
with the clypeal margin raised, and the surface behind it depressed, the convex vertex 
rather deeply divided in the middle by a depression. Thorax not so long as broad, 
canaliculate along the middle, and with a transverse groove in front of the base, an 
angular depression existing just behind the spot where the two channels intersect one 
another. Elytra with a well-marked sutural stria, this latter foveolate at the base, a 
depression (deep at the base) within the shoulders, and a third fovea between these two. 
First dorsal segment only slightly longer than the second. The unique example is no 
doubt a male, the penultimate ventral ring being extremely abbreviate in the middle, 
and the large terminal segment foveolate behind. 
2. Kurhexius parviceps. 
Rufus, sat pubescens, abdomine nigricante; capite perbreve, quam prothorax angustiore, utrinque foveolato, 
anterius minus discrete impresso, vertice summo posterius impresso ; prothorace sat elongato, canaliculato, 
ante basin transversim impresso, sub-bigibboso ; elytris basi sex-foveolata. 
Long. 24 millim. 
Hab. Panama, Volcan de Chiriqui 8000 feet (Champion). 
First joint of the antenne not twice as long as the second; joints 3-8 small, similar 
except that the last two of them are just perceptibly broader and shorter, the ninth 
much larger, transverse, the tenth still larger, but also transverse, the terminal joint 
about as long as the preceding two together. Head unusually small, but with the 
eyes comparatively large; with a rather indefinite impression on the middle in front, 
and a fovea on each side only slightly separated from the frontal depression, the 
convex vertex foveolate behind. Thorax nearly as long as broad, much narrowed in 
front as well as behind, so that the front margin is not quite so broad as the basal 
margin; with a fine channel along the middle, not reaching quite to the front margin, 
and a transverse depression in front of the base, the depression foveolate at each end 
and in the middle so as to give rise to the appearance of two elevations behind it. 
Elytra with a broad depression within the shoulder, the sutural stria foveolate in front, 
and another fovea near it at the base. First ventral segment not longer than the 
next. The unique individual is of doubtful sex ; it is probably a male, though it has_ 
no conspicuous mark except the great abbreviation of the penultimate ventral ring in 
the middle. 
3. Eurhexius ventralis. 
Rufescens, minus subtiliter pubescens; capite perbreve, lato, anterius curvatim impresso, vertice summo pos- 
terius foveolato ; prothorace sat elongato, profunde canaliculato, ante basin transversim sulcato; elytris 
basi sex-foveolata ; abdomine segmento primo dorsali quam secundum duplo longiore. 
Long. 2} millim. 
Hab. Panama, Volcan de Chiriqui 3000 to 4000 feet (Champion). 
Antenne with the basal joint about twice as long as the second; joints 3-8 small, 
almost similar to one another, the ninth and tenth broader, scarcely transverse, the 
