106 HYDROPHILID. 
6. Cercyon ebeninus. 
Ovalis, convexus, nitidus, niger, pedibus piceo-rufis; antennarum basi palpisque rufis; prothorace crebre sat 
fortiter punctato; elytris profunde striatis, striis punctatis, versus apicem profundioribus, interstitiis sat 
crebre et fortiter punctatis. 
Long. 12, lat. 2 lin. 
Hab. Guatemaa, Cerro Zunil 4000 feet (Champion). 
Head rather closely and coarsely punctate. Thorax rather less closely and coarsely 
punctate. Elytra deeply striate, the internal strize rather fine and crenate; the punc- 
tures of the outer striae, however, are large and definite ; the punctuation of the interstices 
moderately close, quite distinct. The colour beneath is piceous, rufescent in front ; the 
mentum is transversely rugose; the mesosternal lamina elongate, but very slender; the 
prosternum distinctly carinate along the middle. 
I have seen only a single individual: compared with the European C. obsoletus it 
differs markedly by the deeper striation and less punctuation of the wing-cases; but the 
only conspicuous structural difference is that the tarsi are considerably less elongate ; 
the mesosternal lamina, however, is slightly narrower. 
7. Cercyon integer. 
Rotundato-ovalis, convexus, nitidus, niger, elytris ad apicem irregulariter dilutioribus, pedibus rufis ; antennarum 
basi palpisque testaceis; prothorace minus crebre et minus fortiter punctato, nitido; elytris profunde 
striatis, striis fortiter punctatis, interstitiis impunctatis, fere convexis. 
Long. 13, lat. 2 lin. 
Hab. Mexico, Cordova (Sallé); GuatemMata, Guatemala city, San Gerénimo, Balheu, 
El Tumbador 2500 feet, Las Mercedes 3000 feet, Cerro Zunil 4000 to 5000 feet 
(Champion). 
Head rather coarsely punctate, shining, flavescent in front. Thorax neither closely 
nor coarsely punctate. Elytra very distinctly striate, the striz very distinctly punctured, 
and deeper towards the extremity, the internal a little finer at the base; the interstices 
almost impunctate. ‘The mentum is very shining, and bears only a few very fine punc- 
tures; the mesosternal lamina is rather broad, shining, and almost impunctate; the 
metasternal pentagon is also small, and is shining and impunctate ; the prosternum is 
very distinctly carinate. 
The species appears to be not common, being represented in the collections by less 
than a dozen specimens. Like its congeners it varies much in colour, and a little in size 
and sculpture; but the only individual which is at all likely to prove to belong to a 
different species is the unique Mexican specimen: this is of slightly narrower form, and 
has a distinct though scanty punctuation at the base of the elytra, and the outer strie 
not quite so deep. 
