PALAMINUS. 633 
This species is closely allied to P. validus, but differs in having distinctly shorter elytra 
and a shorter and broader, more obsoletely punctured thorax ; the terminal joint of the 
maxillary palpus is scarcely so large. The eyes are not large, and do not quite attain 
the hind margin. The thorax is evidently broader than long, and the rather few 
punctures on it are placed so as to leave two or three almost bare spaces. The 
punctuation of the elytra is close only at the base. Three mutilated examples. 
* 
6. Palaminus crenatus. 
Angustulus, elongatus, niger; antennis, palpis pedibusque pallide flavis; prothorace angusto, basin versus 
angustato, parce punctato, utrinque impresso; elytris apicem versus latius levigatis ; abdominis segmentis 
ultimo et penultimo ad summam basin minute crenulatis. 
Long. 73 millim. 
Hab. GuateMALa, Cubilguitz (Champion). 
Antennz long and slender. Head broad, nearly as broad as the elytra, coarsely 
punctate, the eyes separated by a considerable space from the hind margin. ‘Thorax not 
quite so long as broad, considerably narrower than the elytra, greatly narrowed behind, 
with a depression on each side of the middle (more distinct than in the preceding and 
following species), sparingly punctured, the major part of the punctures placed in the 
depressions. Elytra not twice as long as the thorax, rather sparingly punctate. 
One female. The crenulate sculpture, extending as a band all round the base of each 
of the terminal two segments, does not appear to be present in any of the other black 
species here described. 
7. Palaminus insignis. 
Elongatus, angustus, niger; antennis (?), palpis, pedibus elytrorumque margine apicali, pallide flavis; pro- 
thorace angusto, basin versus fortiter angustato. 
Long. 5 millim. 
Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 
Antenne with the six basal joints slender and elongate (the rest broken off). Head 
slightly broader than the thorax, coarsely punctate. Thorax slender, very much 
narrower than the elytra, about as long as broad, greatly narrowed behind, coarsely 
punctate, indistinctly bi-impressed. lytra not quite twice as long as the thorax, 
coarsely punctate, the punctuation dense at the base, absent from the hind margin, 
which is very conspicuously flavescent. Legs very slender. Terminal styles very 
long. 
This insect somewhat resembles P. apicipennis on account of its coloration, but is 
very distinct by reason of the slender thorax and elongate terminal styles; and though 
the antenne are mutilated, I have no doubt from the general structure that the species 
belongs to this group. Unique. 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, November 1886. 4 MM 
