700 STAPHYLINIDZ. 
which is divided into two by a short definite elevation. Elytra much longer than 
the thorax, feebly punctulate, shining. Legs yellow, slightly infuscate. 
Though very similar to 7. nigrellus, this species is distinguished by well-marked 
characters, especially the larger eyes and deeply impressed thorax. Three examples. 
8. Trogophleus insignellus. 
Brevis, convexus, nitidus, nigricans ; antennis, pedibus elytrisque testaceis, his disco infuscatis ; prothorace 
fusco, brevi, lateribus rotundatis, dorso bi-impresso. 
Long. 13 millim. 
Hab. Guatemata, El Reposo (Champion). 
A distinct little insect, resembling a miniature Bledius, though not belonging to the 
subgenus Jroginus, Rey, which includes most of the minute Bledius-like Trogophiet. 
Antenne very short; third joint minute, the penultimate one strongly transverse. 
Head very short, deeply bi-impressed. Thorax transverse, shining, scarcely punctulate ; 
with two rather deep impressions on the middle. Elytra much longer than the 
thorax; feebly, rather closely punctulate, shining. Unique. 
9. Trogophleus misellus. 
Brevis, niger ; antennarum basi pedibusque sordide testaceis ; prothorace sat elongato, basin versus angustato, 
inimpresso ; elytris quam prothorax longioribus, subtilius punctulatis. 
Long. 13 millim. 
Hab. Guatemata, San Gerénimo (Champion). 
Antenne short, the penultimate joints rather strongly transverse. Head short; eyes 
not large, placed close to the base ; the constriction forming the neck extremely slight. 
Thorax strongly narrowed behind, the sides curvate, the front angles quite invisible ; 
very finely punctulate, without any trace of depressions. Elytra longer than the thorax, 
finely punctulate. Unique. 
This little insect resembles the European T. exiguus, but the structure of the head, 
é. g. very short so that the eyes are placed close to the thorax, will not allow it to be 
placed in the subgenus Troginus, Rey, of which 7. exiguus is the type. 
10. Trogophleus velutinus. 
Brevis, niger ; antennarum articulo basali pedibusque testaceis ; prothorace brevi, cumque capite nigerrimo, 
quasi velutino, inimpresso ; elytris evidenter punctulatis ; abdomine nitidulo. 
Long. 23 millim. 
Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion). 
Antenne short, the penultimate joints strongly transverse. Head short and broad, 
rather abruptly constricted behind the eyes, only feebly bi-impressed ; intensely black, 
quite dull. Thorax nearly twice as broad as long, curved at the sides and narrowed 
behind ; very black, quite dull, not visibly punctate. Elytra a good deal longer than the 
thorax, closely and finely punctate, feebly shining. Hind body more distinctly shining. 
