MACROMEROPSIS.—CYLINDROCORYNUS. 513 
elongate, the club subcylindrical, nearly as long as the five preceding joints united. Prothorax broader 
than long, rounded at the sides, constricted and much narrowed in front, the sides subparallel at the base ; 
sparsely granulate, each granule accompanied by a small puncture, the interspaces minutely punctate, the 
disc sharply carinate. Elytra flattened on the disc anteriorly, the sides vertical, the humeri rounded ; 
coarsely seriate-punctate, the interstices minutely punctate and seriato-granulate, 3 and 5 interruptedly 
raised and the outer ones raised throughout. Beneath coarsely, sparsely punctate. Anterior legs longer, 
and the tarsi dilated and clothed on each side with long, projecting hairs, in the ¢. 
Length 11-15, breadth 5-72 millim. (¢ 9.) 
Hab. Nicaragua, Chontales (Belt, Janson); Panama, Volcan de Chiriqui, Bugaba 
(Champion). 
Thirteen specimens. The velvety-black markings on the upper surface vary in 
extent, these more or less surrounding the white spot on each elytron, and the curved, 
sinuous vitte on the prothorax are sometimes interrupted. 
2. Macromeropsis quadrinotatus, sp. n. (Tab. XXV. figg. 16, 16a, ¢ ; 
16 4, anterior tarsus, ¢ .) 
Very like M. binotatus, but with a conspicuous spot on each of the shoulders of the elytra, as well as a 
rounded spot on the disc beyond the middle, ochreous or fulvous, the prothorax with a dense similarly- 
coloured patch in front of the anterior cox beneath, in addition to the small spot on the flanks; the 
rostrum sharply carinate down the middle at the base, the outer caring interrupted or irregular ; the 
antennal club ovate; the granulation of the prothorax and elytra coarser, the latter with very long cilia 
at the sides in the 4, the anterior tarsi scarcely dilated in this sex. 
Length 114-134, breadth 54-63 millim. (¢ 2.) 
Hab. Panama, Caldera in Chiriqui (Champion). 
One pair. 
CYLINDROCORYNUS. 
Cylindrocorynus, Schénherr, Gen. Cure. iv. p. 231 (1837) ; Lacordaire, Gen. Col. vii. p. 123. 
The two Tropical-American species included in this genus by Schonherr, one of 
which extends northwards to Mexico, are very closely related to Celosternus compernis 
and its allies, but differ from them in having the anterior tarsi of the males simply 
dilated, without projecting hairs. 
1. Cylindrocorynus dentipes. (Tab. XXV. figg. 17, 17a, ¢; 174, anterior 
tarsus, ¢ .) 
Cylindrocorynus dentipes, Boh. in Schénh. Gen. Cure. iv. p. 233°. 
Hab. Muxico, Toxpam in Vera Cruz (Sallé) ; Nicaragua, Chontales (Belt) ; Panama, 
David, Volcan de Chiriqui (Champion).—GuIANA, Cayenne '. 
Eight specimens. In this insect the elytral interstices, 1, 2, and 4 excepted, are 
sharply costate, and the antennal club is about as long as joints 3-7 of the funiculus. 
The anterior femora are sulcate at the base behind. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 4, June 1905. 3UU 
