266 STAPHYLINIDZ. 
broad, but only half as wide as the elytra. Thorax quite twice as broad as long, 
transversely convex in front, the front angles extremely depressed ; the surface finely 
pubescent, but scarcely punctulate. lytra longer than the thorax, very finely punctu- 
late, with short very fine pubescence. Hind body broad, acuminate behind, very 
indistinctly and hardly densely punctulate ; the lateral margins of the anterior segments 
broad. 
Eleven individuals of this species have been found; but they do not exhibit any 
external sexual character, so far as I can see: nearly all are in bad condition. Two 
individuals found on the Volcan de Chiriqui, at a height of between 2500 and 4000 feet, 
apparently only differ by the antenne being quite concolorous. Whether they will 
prove to be a distinct species or not I am very doubtful. 
2. Brachida sparsa. 
Ferruginea, antennis pedibusque testaceis, illis in medio nigricantibus, pube brevissima vestita; prothorace 
fortiter transverso, basi rotundata in medio subemarginata; elytris crebre subtilissime, abdomine parce 
punctatis. 
Long. 32 millim. 
Hab. Guatema.a, Capetillo (Champion). 
This insect is quite similar to B. modesta, except that it differs in the punctuation 
of the elytra and hind body, which is comparatively sparing and not quite so invisible, 
and the pubescence is consequently less dense. 
Two individuals have been found. 
3. Brachida carinata. 
Ferruginea, capite abdominisque basi in medio picescentibus, antennis pedibusque testaceis, illis in medio 
nigricantibus, pube brevissima vestita, omnium subtilissime, haud perspicue punctulata; mesosterno 
longitudinaliter carinato. 
Long. 23 millim. 
Hab. Guaremata, Duefias (Champion). 
Antenne similar to those of B. modesta, scarcely so elongate. Head small in com- 
parison with the other parts. Thorax considerably narrower than the elytra; these latter 
with a very fine, abundant, upright pubescence, which is very easily removed and then 
leaves the surface smooth and shining. Hind body broad, only sparingly punctate. 
Though very similar to B. modesta and B. sparsa, this insect will be readily distin- 
guished by the smaller head and thorax and the carinate mesosternum. Only a single 
individual has been found. 
4. Brachida geniculata. 
Ferruginea, antennis articulo basali elongato, in medio piceis, apice ?; elytris dense subtilissime granulatis ; 
abdomine subtiliter punctulato, lateribus argute elevatis, acutis ; mesosterno medio fortiter carinato. 
Long. circiter 2 millim. 
