218 RHYNCHOPHORA. 
Chontales (Janson); Panama, Tolé, Bugaba (Champion).—VENEZUELA *? ; GUIANA 2; 
Braziu2; Cutui22.—Antittes, Porto Rico2, St. Vincent2, Grenada (H. H. Smith), 
Trinidad.—Sanypwicu Is.anps #.—AFrica, Congo.—MADaGascaR ”. 
A common species with an extended tropical distribution. The number of examples, 
however, obtained from Central America, does not exceed twenty. The species is of 
smaller average size than X. fuscatus, of lighter colour, and readily separable by the 
absence of the interstitial series of punctures on the elytra; the alternate interstices, 
however, show two or three setiferous punctures in some individuals. This species 
varies in size, in colour (a few examples in a series being more or less infuscate), and in 
the depth of the thoracic punctuation. Asa rule, the basal half of the pronotum is 
smooth and scarcely visibly punctate, but the punctures are occasionally distinct ; and 
one specimen from Chontales has that surface closely and rather strongly punctured, 
but conforms with the type in other respects. The inner interstices of the elytra 
present one to four minute tubercles, varying in number and size, just anterior to the 
declivity, which itself may be more or less evidently punctured, and impressed or not 
near the suture. The type of X. insularis, Sharp, from Kauai differs by no marked 
characters. 
From the distribution of this species in Central America and its absence from many 
regions in Guatemala in which Mr. Champion collected extensively, one may conclude 
that it inhabits the sea-level and tierra caliente, not ascending over 2000 feet. 
35. Xyleborus declivis. (Tab. VII. fig. 21.) 
‘yleborus declivis, Eichh. Berl. ent. Zeitschr. 1868, p. 280'; Rat. Tom. p. 401°. 
Hab. Muxico, Teapa!?; Guatemaua, Las Mercedes, Zapote, Cerro Zunil (Champion). 
Eight examples were taken by Mr. Champion. This species can be easily separated 
from others known from Central America, except the following, by its very glossy 
appearance and elongate form: the base of the prothorax is very finely punctured; the 
elytra are punctured in very regular fine rows, with almost impunctate interstices, their 
apex is oblique, flattened, and armed with four prominent tubercles placed as in 
X. monographus (Ratz.), or X. celsus, Eichh. The latter North-American species is 
larger, more exactly cylindrical, and has the interstices lineato-punctate. 
36. Xyleborus macer, sp. n. 
Elongatus, cylindricus, nitidus, parce pilosus, ferrugineus vel piceus ; prothorace oblongo, posterius sat distincte 
parce punctato; elytris lineato-punctatis, interstitiis rarissime punctatis, apice oblique declivi, dentibus 
4 majoribus preeter suturam ornato. 
Long. 3-3°6 millim. 
Elongate, cylindric, shining, ferruginous, or piceous. Front dull and roughened, subconvex, fringed at the 
margins with long hairs; eyes rather coarsely granulate. Prothorax more than one-third longer than 
wide, parallel-sided or imperceptibly widened forwards from the truncate base, hind angles obliquely, the 
apex broadly rounded ; surface indistinctly elevated at the anterior third, finely asperate in front, sparsely 
