562 STAPHYLINIDA. 
length of the sides ; labrum not denticulate, distinctly notched in the middle, separated 
from the head by a rather large membrane; middle tooth of the right mandible 
elongate, the upper and lower teeth small; basal tooth of the left mandible longer 
than the two upper teeth. Antenne slender, the third joint a little longer than the 
second. Thorax rather strongly transverse, distinctly narrowed behind, like the head 
coarsely and closely punctate, but with a distinct smooth line down the middle. Elytra 
a little longer than the thorax, rather closely rugose punctate. Tarsi slender, rather 
long; the anterior pair well dilated. The male has a slight emargination of the last 
ventral plate. 
2. Scioporus fulvescens. (Tab. XIV. fig. 17.) 
Sat latus, minus depressus, ferrugineus, capite vix picescente, nitidus ; capite prothoraceque crebre fortiter 
punctatis, hoc medio linea levigata. 
Long. 4 millim. 
Hab. Panama, David (Champion). 
Antenne stout and short, the first joint thick, the third joint small, rather smaller 
than the second, the joints from the fourth onwards not so long as broad. Head 
coarsely and distinctly but rather irregularly punctured, the disc convex, shining and 
impunctate. Thorax strongly transverse, coarsely, moderately densely punctate, with a 
very distinct smooth line along the middle. Elytra longer than the thorax, somewhat 
shining, rather definitely and moderately coarsely punctate. Front tarsi rather feebly 
dilated. 
Two examples. 
3. Scioporus signatus. (Tab. XIV. fig. 18.) 
Fuscus, capite prothoraceque nigricantibus, antennis, pedibus elytrisque ferrugineis, his medio nigris ; capite 
dense rugoso-punctato, opaco, disco levigato, nitido. 
Long. 43 millim. 
Hab. Guatemaa, Cerro Zunil (Champion). 
The head has a dense confluent punctuation on either side, very confused behind ; 
the lower tooth on the right mandible is a little longer than the two upper. The 
thorax is short, a little narrowed behind, shining, very coarsely, rather closely punctate, 
with a smooth space on the middle, not extending the whole length. Elytra longer 
than the thorax, indistinctly punctate, ferruginous, with a very large angular black mark 
on the disc. ‘The male has a slight emargination of the last ventral plate. Unique. 
4. Scloporus sellatus. 
Fuscus, capite prothoraceque piceis, nitidis, antennis pedibusque testaceis, elytris ferrugineis, dorso fusco ; 
capite prothoraceque fortiter disperse punctatis, hoc medio linea parum discreta levigata. 
Long. 43 millim. 
Hab. GUATEMALA (Champion). 
