PITYOPHTHORUS, 239 
punctured in rather regular rows, the sutural row and sometimes the others appearing just impressed 
in certain lights, interstices narrow, not quite flat, the second and third with two or three punctures, 
the remainder impunctate except on the declivity; the latter confusedly punctured, very shortly 
pubescent, with a narrow sulcus on each side of the suture, its fundus rather dull, margins of the 
suture elevated, but not evidently tuberculate, the sides not callose. 
Hab. Guatemata, San Gerénimo (Champion). 
Three examples, without sexual difference, probably females. The species resembles 
P. confusus, but is less than half the size, and is distinguished by the much closer 
punctures and elevated median line of the prothorax, and the more regular rows 
of punctures on the elytra, which nevertheless show the displacement spoken of under 
that species. 
6. Pityophthorus guatemalensis, sp. n. 
Oblongus, cylindricus, piceus, prothoracis apice et elytris, limbo laterali excepto, dilutioribus, antennis pedi- 
busque testaceo-ferrugineis, nonnunquam totus ferrugineus vel testaceus, prothorace medio subinfuscato, 
parce pilosus; prothorace fere semi-elliptico, anterius vix constricto, dorso postice mediocriter punctate, 
linea media levi; elytris subparallelis, apice rotundatis, striato-punctatis, stria suturali impressa, inter- 
stitiis subconvexis, declivitate utrinque impressa, longius setosa. 
Mas. Fronte subglabra, declivitate profundius impressa, margine suturali et callo laterali elevatis, fortius 
tuberculatis. 
Fem. Fronte villosa, declivitate parum impressa, marginibus vix elevatis obsolete tuberculatis. 
Long., ¢ 2°2-8 millim., 9 2-2°6 millim. 
Oblong, cylindric, rather shining, piceous, with the apex of the prothorax (indistinctly) and the elytra 
ferruginous brown, the latter with a dark marginal band; often ferruginous or testaceous, with the head 
and a median shade on the prothorax infuscate; antenne and legs in mature examples yellowish- 
ferruginous. Front (¢) subconvex, closely and rugosely punctured, with a short carina over the 
mouth, which is fringed on each side with numerous yellowish hairs; front ( Q ) clothed with decumbent 
yellowish hairs around a smooth elevation ; eyes emarginate. Prothorax longer than broad, subelliptically 
rounded from behind the middle to the apex, sometimes subccnstricted in front, hind angles subrect- 
angular; disc with traces of a median elevation, shortly pubescent, in front granulate, not in concentric 
lines, behind moderately punctured, the punctures sparser and weaker towards the base and impunctate 
median line. Scutellum rather large, rounded, punctured. LElytra scarcely so wide as the prothorax 
and one-half longer, subparallel-sided, the apex rather obtuse ; with substriate rows of strong punctures, 
the sutural row impressed, the interstices slightly convex, finely wrinkled and impunctate; apex strongly 
declivous, sulcate on each side of the suture; sulcus ( d ) broad and deeper, its sutural margins and lateral 
calli moderately elevated, the former each with three, the latter each with four setiferous tubercles ; 
sulcus (  ) narrower, less impressed, the setiferous tubercles weaker. Underside in mature specimens 
piceous. Pygidium distinctly visible. 
Hab. Guatemata, Guatemala city, Zapote, Calderas, Capetillo, Quiché Mts. 
(Champion). 
The specimens taken, twenty in number, differ much in size, one male (3 millim. 
in length) from Zapote being much larger than the rest. This peculiarity is found in 
other species of the genus, e. g. P. lichtensteini (Ratz.). The prothorax in some 
examples is distinctly constricted in front; the variation in colour depends probably 
on differences in the degree of maturity. 
