STILICUS. 585 
Antenne with the five or six basal joints slightly infuscate. Head broad, excessively 
densely punctate. Thorax elongate, much longer than broad, with the lateral angles 
unusually distinct; the sculpture excessively coarse, especially at the sides. Elytra 
closely punctate, the punctuation rather indefinite and peculiar owing to many of the 
punctures being confluent in the longitudinal direction; the surface towards the base 
is uneven; they are not longer than the thorax. Hind body very densely and finely 
punctate. Legs long; tips of the hind femora infuscate. The male has a large 
excision on the apical ventral segment. 
Four examples were procured of this very distinct species. 
10. Stilicus bidens. 
Latiusculus, niger, subseneus, elytris fusco-encis apicibus testaceis, antennis palpisque rufis, pedibus cum coxis 
testaceis ; prothorace rugoso-punctato, medio anguste profundeq ue canaliculato; elytris politis, parce obso- 
leteque punctatis. 
Long. 63 millim. 
Hab. Guatemata, near the city, Cerro Zunil 4000 to 5000 feet (Champion). 
Head densely and coarsely punctate, the interstices longitudinally strigose. Antenne 
with the penultimate joint not broader than long. Labrum acutely bidenticulate in 
the middle. Thorax not large, much narrower than the elytra, longer than broad, much 
narrowed behind, the lateral angles entirely round ; surface extremely coarsely punctate, 
with a very distinct longitudinal channel along the middle. Elytra evidently longer than 
the thorax, very shining, with very fine distant punctures; the hind margin yellow, 
more broadly so at the outer angle. 
This resembles the European species of the genus, and, like them, has the labrum 
conspicuously bidentate. 
Only two examples have been found, both females. 
11. Stilicus muticus. (Tab. XV. fig. 8.) 
Nigro-sneus, elytrorum apice, antennis, palpis pedibusque cum coxis testaceis; capite prothoraceque dense 
punctatis, hoc medio argute canaliculato ; elytris crebre sat subtiliter profunde punctatis. 
Long. 44 millim. 
Hab. Panama, Bugaba, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
Head suborbiculate, rather slender; penultimate joint of the antenne shorter than 
broad. Labrum not visibly denticulate. Thorax broad, rather longer than wide, densely 
punctate, and very distinctly canaliculate along the middle. Elytra slightly longer than 
the thorax, rather shining, distinctly but not densely punctate, impressed within the 
shoulders; hind margin very conspicuously yellow. Legs slender. Male with a rather 
narrow excision on the last ventral segment, and the hind margin of the penultimate 
segment very indistinctly bisinuate. 
Three examples. 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Part 2, August 1886. 4 FF 
