532 CUCUJIDA. 
The whole of the upper and under surfaces covered with a very fine dense 
punctuation. Antenne moderately long and stout, distinctly longer in the male than 
in the female, the terminal three joints longer and rather broader than the others. 
Head similar in the two sexes, considerably narrower than the thorax. Thorax 
distinctly broader than long, scarcely narrowed behind, undulating at the sides, and 
with a very distinct raised costa on each side. Elytra rather long and narrow, each 
_with three distinctly raised cost, in addition to the slightly raised suture. Thirteen 
specimens from Zapote, ten from Tehuantepec. 
2. Rhabdophleus dispar, sp. n. 
Parvus, depressus, ferrugineus, dense subtilissime punctatus et pubescens, opacus ; prothorace brevi, margine 
laterali irregulare, intra marginem fortiter unicostato, costaque secunda utrinque ; elytris argute costatis. 
Long. 2 millim. 
Hab. GuAremata, El Reposo, Zapote (Champion). 
Very similar to Z. concolor, but readily distinguished by the denser punctuation and 
the very strongly elevated thoracic carina; the second carina or elevation does not 
extend all the way to the front margin. Hight specimens. 
3. Rhabdophleus costatus. 
Lemophileus costatus, Grouv. Ann. Soc. Ent. Fr. 1876, p. 501, t. 9. fig. 21°. 
Hab. Mexico, Teapa in Tabasco! (H. H. Smith); Guatemaua, Zapote (Champion). 
Mr. Champion procured a large series of this species at Zapote. It varies but little. 
‘The male antenne are much longer than those of the female. 
4. Rhabdophleus chiriquensis, sp. n. (Tab. XVII. fig. 4, 3.) 
Subovalis, latus, depressus, ferrugineus, dense subtiliter punctatus; elytris fortiter costatis, costis hic inde 
fuscescentibus. 
Long. 2 millim. 
Hab. Panama, Volcan de Chiriqui, Bugaba (Champion). 
This insect is readily distinguished from JL. costatus by the broader and more 
depressed form, by the explanate margins of the elytra, and by the elongate antennae, 
which, however, are considerably shorter in the female than they are in the male. We 
have received only three specimens. 
RHINOPHLGEUS, gen. nov. 
Oculi grosse granulati. Caput sat clongatum, plus minusve rostratum, sed haud angustum. Coxe anteriores 
parum distantes ; acetabulis haud occlusis. 
This genus makes a certain approach to Rhinomalus, but the two are quite distinct. 
Rhinophleus has not the narrow rostrum of Rhinomalus, neither has it the first joint 
of the antenne elongated to an unusual extent; the parts of the mouth are much 
