184 STAPHYLINIDA. 
Antenne rather stout, of moderate length, scarcely thicker at the extremity ; the basal 
two or three joints yellow, the following dark, the apical one again yellow; third joint 
slightly longer than second, fourth and fifth each as long as broad ; terminal joint rather 
large, as long as the two preceding together. Thorax strongly transverse, rather closely 
punctate. Elytra closely and finely punctate. 
In the male the seventh dorsal plate is at the extremity slightly prolonged in the 
- middle, each side of the prolonged portion is at the hind margin obscurely tuberculate, 
and between the tubercles there is a very slight emargination ; on each side there is also 
a short tooth, which scarcely projects so far back as the central prominence. : 
In this species the middle coxee are moderately separated, and the mesosternal process 
is rather short and broad, with obtuse extremity, very similar to the same parts in 
HI, perdita. | 
24. Homalota chiriquensis. 
Nigro-fusca, elytris fuscis, pedibus testaceis; antennis mediocribus evidenter pilosellis, articulis penultimis 
subquadratis ; prothorace leviter transverso, antrorsum subangustato, basi rotundata, parce obsoleteque 
punctato; elytris quam hic longioribus, crebre punctatis; abdomine apicem versus attenuato, sparsim 
punctato, nitido, apice obscure piceo. . 
Long. 42 millim. 
Hab. Panama, Volcan de Chiriqui 8000 feet (Champion). 
Antenne rather elongate, basal joint piceous, the others black; third joint elongate, 
longer than second; fourth quadrate, a good deal smaller than the fifth; fifth to tenth 
differing little from one another, but each slightly shorter than its predecessor, the fifth 
longer than broad, the tenth not quite so long as broad; terminal joint acuminate, as 
long as the two preceding together. Head small. Thorax distinctly broader than 
long, a little narrowed in front and curved at the sides, with the base much rounded, 
and the hind angles extremely indistinct. Elytra a good deal longer than the thorax, 
of an obscure brownish colour, rather closely punctate. Hind body slender, very 
sparingly punctate. Legs yellow; middle and hind tibie with a rather elongate 
outstanding seta on the middle of each; tarsi rather elongate. 
In this species the middle cox are very approximate, and the mesosternal process is 
elongate and extremely slender; the coxal cavities communicate by a well-marked 
rather elongate intercoxal isthmus. It is similar to the European H. intermedia, Th. ; 
but the hind body is less punctate. 
Only two individuals, in bad condition, have been found. 
25. Homalota certata. 
Nigra, elytris fuscis, antennarum basi pedibusque testaceis; antennis fere gracilibus, apicem versus incrassatis, 
articulis penultimis leviter transversis ; prothorace transverso, parce punctato; abdomine apicem versus 
subattenuato, segmentis basalibus parce punctatis. 
Long. 3 millim. 
Hab. Guatemaa, Cerro Zunil 4000 to 5000 feet (Champion). 
