352 STAPHYLINIDZA, 
‘Hab. GUATEMALA, Capetillo, Zapote, Las Mercedes 3000 feet, San Isidro 1600 feet 
(Champion). 
This insect is closely allied to P. fetialis, but is readily distinguished by the colour 
of the antenne (of which the four basal and one apical joints are yellow) and of the 
parts of the mouth. The male has characters similar to those of P. fetialis, the front 
tarsi being simple, and the penultimate ventral plate bearing a fine pencil of long sete, 
while the hind margin of the terminal segment is slightly emarginate. 
Five examples have been found of this species. 
3. Plociopterus collaris. (Tab. VIII. fig. 21.) 
Niger; antennarum basi et apice, oris partibus, abdominis apice pedibusque testaceis, thorace rufo; elytris 
viridescentibus, fascia una basali aliaque apicali cinereo-pubescentibus. 
Long. 14 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
The antenne have the four basal joints and the terminal joint pale. The head and 
thorax are coarsely and closely punctured, the former with a smooth space, the latter 
with a smooth line, along the middle. Elytra coarsely and closely punctate. Hind 
body rather sparingly punctate, the two terminal segments and anal styles yellow; the 
third and fourth segments with a scanty cinereous pubescence. ‘The male has the front 
tarsi simple, a slender pencil of pubescence on the penultimate segment, and a very 
slight emargination of the apical segment. 
Four individuals have been found. Though closely allied to P. fetialis, it is readily 
distinguished by the colour differences. 
4. Plociopterus lugubris. 
Niger; antennarum articulis duobus ultimis abdominisque apice testaceis ; elytris cyaneis fasciis duabus cinereo- 
pubescentibus ; abdomine parce punctato, seemento 8° parce cinereo-pubescente. 
Long. 11-14 millim. 
Hab. Panama, Caldera 1200 feet, Bugaba 800 to 1500 feet (Champion). 
The mandibles and palpi are black, except that the terminal joint of the maxillary 
palpus is paler. The punctuation of the head is very coarse; that of the thorax is 
scanty and less coarse. The elytra are evenly, rather coarsely and only moderately 
closely punctate, and the punctuation of the hind body is but feeble and not close; 
the penultimate segment is not entirely yellow, but is more or less dark at the extreme 
base, especially on the underside; the anal styles are infuscate at the apex. The legs 
are entirely black, except that the tarsi become rufescent at their terminations; there 
is very little cinereous pubescence on the under surface. The male characters are 
very slight, and consist only of an inconspicuous emargination at the tip of the last 
ventral plate. 
