314 STAPHYLINIDA. 
punctate, and indistinctly marked with red near the shoulder. The legs are slender 
and long. The mesosternum is distinctly carinate, the posterior portion of the carina 
elongate. 
Only one individual has been found. ‘The species is very similar to the well-known 
C. pubescens, but the insect is larger, and has considerably longer and more slender 
antenne. 
3. Conosoma mediale. 
Gracile, nigro-fuscum, dense subtilissime punctatum, opacum ; antennis fuscis, basi pedibusque testaceis, abdo- 
minis segmentis ferrugineo-cingulatis; prothorace elongato, basi fere truncato, angulis posterioribus 
rectis haud rotundatis. 
Long. 43 millim. 
Hab. GuatemaLa, Cerro Zunil 4000 to 5000 feet, Zapote (Champion); PanaMa, 
Volcan de Chiriqui 2500 to 4000 feet (Champion). 
Antenne moderately long, a good deal thickened externally; the two basal joints 
yellow, the others darker, the apex again a little paler; tenth joint just about as long 
as broad. Thorax elongate, with the base only very slightly sinuate, so that the hind 
angles project scarcely at all backwards. Elytra about as long as the thorax. Hind 
body slender, the posterior portions of the segments reddish. ‘The mesosternal carina 
is moderately elevated. 
This obscure insect appears closely allied to C. pubescens, but is of darker colour, and 
is rather smaller, and the hind angles of the thorax project a little more backwards. 
Only one individual has been found in each locality: the one from Zapote is very 
immature so as to be nearly brown in colour; the second, from Panama, has the antenne 
slightly longer and more slender than the type from Guatemala. 
4. Conosoma parcum. 
Angustulum, minus dense punctatum et minus tenuiter pubescens, fusco-ferrugineum; antennis pedibusque 
testaceis, illis extrorsum fuscescentibus ; elytris ad basin vage rufescentibus. 
Long. 5 millim. 
Hab. GUATEMALA, Cerro Zunil 4000 to 5000 feet, San Gerdénimo (Champion). 
' Antenne a little thickened externally ; tenth joint about as long as broad. Thorax 
elongate, truncate at the base, with the angles not projecting backwards, the surface 
only sparingly punctate, and the pubescence less delicate than usual. Elytra elongate, 
longer than the thorax, vaguely reddish at the base, less densely punctured and less 
delicately pubescent than usual. Mesosternal carina in front very slight, behind slight, 
but quite definite and punctate. 
Three individuals have been found. 
