216 MALACODERMATA. 
(a male) redder at the base of the elytra than the Mexican specimens. Champion did 
not meet with the male. 
The specimen figured is one from San Gerénimo. 
2. Xylopertha tubularis. 
Elongata, cylindrica, nigro-picea, prothorace subopaco dense granuloso-punctato, antice muricato, utrinque 
denticulis quinque; elytris nitidis, crebre obsoletius punctatis, versus apicem callo duplici cariniformi, 
margine apicali reflexo; pedibus piceis. Long. 8 millim, 
Hab. Panama, Bugaba (Champion). 
More elongate and cylindrical than X. sericans. Almost black; the antenne are 
fuscous, and the legs a little paler; the abdomen is clothed with sericeous hairs. The 
head is finely, obsoletely, and confluently punctured, with a deep transverse impression 
between the eyes. The punctuation of the elytra is irregular and transversely confluent. 
The apex obliquely declivous and punctate, the lower of the two callosities most distinct. 
A single specimen is all I have seen yet. 
Very closely resembles a species from New South Wales, which, however, has the 
apical margin notched in a remarkable way and sharper callosities. 
3. Xylopertha scapularis. 
Elongata, cylindrica, parum nitida, nigra; prothorace antice muricato, denticulis quatuor vel quinque utrinque 
prominentibus, basi crebre subtiliter punctata, medio tenuiter canaliculato; elytris crebre subruguloso- 
punctatis, apice declivo, haud calloso, breviter fulvo-pubescente, humero rufo. Long. 4-5 millim. 
Hab. Mexico, Orizaba (Sallé), San Andrés Tuxtla (Sa//é); Guaremaa, Cerro Zunil, 
San Joachin, Torola (Champion).—Var.? GuatEMALA, San Gerdnimo, Chacoj (Cham- 
pion) ; Panama, San Lorenzo (Champion). 
The nearest ally of this species known to me is X. basilaris (Sinoxylon basilare, Say), 
from which it differs in the punctuation being finer and closer, especially at the apex, 
where in that species it is very coarse. It lacks the raised interstices which are very 
conspicuous at the base of the elytra in X. bastlaris ; and the denticulations on each side 
of the declivity are also wanting. The specimens from Chacoj, and one from San 
Geronimo, are small, and the bases of the elytra are only indistinctly rufous-brown ; 
but otherwise they do not differ from the typical ones of this species. 
4. Xylopertha sextuberculatum. 
Sinoxylon seatuberculatum, Lec. Proc. Acad. Philad. 1858, p. 73; Horn, Proc. Am. Phil. Soc. 1878, 
p. 543°. 
Hab. Nortn Amzrica, California!, Texas (Belfrage)—MeExico, Guanajuato (Dugés, 
coll. Sallé); Guatemaua, San Gerdénimo (Champion). 
