622 STAPHYLINIDE. 
the former more or less ‘shining; the latter dull, about as long as broad, a little 
narrowed behind. Elytra a little longer than the thorax, coarsely and densely 
punctate. 
Externally this insect differs from P. parcus only by the red elytra ; but the cedeagus 
shows well-marked distinctions, and differs but little from that of P. aldipes. The 
species is apparently rare, as we have only one example from each source. 
4. Pinophilus sejunctus. 
Opacus, niger; palpis, antennis pedibusque pallide flavis, antennis articulis extrorsum fuscescentibus ; elytris 
rufis, abdomine apicem versus rufescente ; prothorace obsoletius minus crebre punctato. 
Long. 13-15 millim. 
Hab. GuateMALa, Paso Antonio 400 feet (Champion). 
This species is extremely similar to P. erythropterus, but is well distinguished by the 
external sexual characters of the male; in this sex the last ventral segment is sinuate 
on each side behind and more prolonged than in the female, the rather narrow apex 
being subtruncate; the ventral valve of the armature is flatter and terminates in a 
longer spine which is scarcely recurved. Independently of this the coarse punctuation 
of the thorax is more scanty and much more obsolete. 
A series of sixteen examples exhibiting very little variation was obtained. 
5. Pinophilus parviceps. 
Angustulus, sat nitidus, nigro-piceus, capite dilutiore, elytris fusco-rufis; antennis, palpis pedibusque pallide 
flavis, abdomine apicem versus vage rufescente ; prothorace nitido, transversim convexo, crebrius fortiterque 
punctato. 
Long. 13 millim. 
Hab. Mexico, Ventanas 2000 feet (Forrer). 
This is a rather more slender insect than P. albipes, and is well distinguished by the 
transversely more convex thorax, which is more shining, owing to the absence of the 
minute interstitial punctuation that exists in most of the allied species. The unique 
example is a male and has the ventral plate of the last segment formed almost as in 
P. sejunctus, that is sinuate at the sides behind and prolonged in the middle, the 
rather narrow apex being nearly truncate; the ventral valve of the armature is armed 
at the extremity only with a short angular process, not long enough to be called a 
spine. 
6. Pinophilus panamensis. 
Angustior, subcylindricus, niger ; antennis, palpis pedibusque flavis ; capite prothoraceque fortiter minus dense 
punctatis pretereaque minute punctulatis; elytris quam prothorax vix longioribus, dense fortiterque 
punctatis. 
Long. 12 millim. 
fab. Panama, Tolé, San Feliz (Champion). 
Extremely similar to P. albipes, but a smaller and rather more slender insect, with 
