TYLODINUS. 467 
Elytra ovate, produced at the apex, at the base not wider than the prothorax, slightly dilated below the 
shoulders ; interruptedly seriate-punctate, the interstices granulate, 2~6 each with one or more prominent 
oblong elevations between the base and middle, the terminal one on 2 and 4 the largest. Ventral 
segments very sparsely punctate. Femora sharply unidentate. 
Length 31-64, breadth 3-3} millim. (@.) 
Hab. GuateMaLa, Cerro Zunil 4000 feet (Champion). 
Two specimens. 
7. Tylodinus canaliculatus, sp.n. (Tab. XXIII. figg. 2, 2a, posterior tibia.) 
Oblong-ovate, somewhat shining, black, the tips of the tarsi, the antenne, and sometimes the rostrum also, 
reddish ; sparsely clothed with narrow fulvous scales intermixed with decumbent blunt sete, the latter 
whitish on the legs, the vertex with a condensed, transverse, ochreous or fulvous patch. Head and base 
of the rostrum rugulosely punctate; the rest of the latter bare and almost smooth; antennex inserted 
behind the middle of the rostrum, joint 2 of the funiculus a little longer than 1, 3-7 short, the club 
stout, ovate. Prothorax slightly broader than long, abruptly narrowed and strongly constricted in 
front and a little narrowed behind, the base hollowed ; closely punctate, the disc swollen on each side 
of the deep median sulcus, the latter obsoletely carinate anteriorly. Elytra gibbous, subpentagonal, 
produced at the apex, deeply sinuate and very little wider than the prothorax at the base, the humeri 
rectangular; coarsely, interruptedly seriate-punctate, the punctures conspicuous along the suture, the 
interstices 2-7 with scattered, large, oblong prominences on the disc. Fifth ventral segment subtruncate 
at the apex in the ¢, longer and rounded at the tip in the @. Femora unidentate. Anterior tibie 
sinuate ; posterior tibie gradually widening externally to near the middle and somewhat hollowed thence 
to the apex. 
Length 4-5, breadth 2-2} millim. (¢d 2.) 
Hab. Guatemata, Cerro Zunil 4000 feet (Champion). 
Nine specimens. This species approaches 7. cavicrus, but the elytra are less 
parallel and not granulate and have much smaller tubercles, the tibie are differently 
formed, &c. ‘The individuals with a shortened fifth ventral segment are assumed to 
be males. 
8. Tylodinus leucozona, sp.n. (Lab. XXIII. figg. 3; 3 a, posterior tibia.) 
Oblong-ovate, subopaque, black, the antenn and the tips of the tarsi ferruginous ; thickly squamose, the 
scales on the rostrum, head, and prothorax fulvous, the head sometimes with a transverse whitish patch 
on the vertex, the prothorax with a strongly curved brownish streak on each side of the disc, the vestiture 
of the elytra, legs, and under surface brown, the elytra with a common, angulate, subapical, white fascia, 
the upper surface and legs also set with very short, scattered, decumbent, fulvous and white sete. Head 
and base of the rostrum rugulosely punctate, the rest of the rostrum bare, shining, and minutely 
punctate ; antenne inserted behind the middle of the rostrum, joint 2 of the funiculus longer than 1, 
3-7 short, the club ovate. Prothorax transverse, constricted and much narrowed in front and slightly 
narrowed behind, the sides rounded anteriorly, the base hollowed, the short anterior portion depressed 
and somewhat tubulate ; finely, rather closely punctate. Elytra very little wider than the prothorax at 
the base, subovate, with the apex produced, the base itself sinuate ; interruptedly seriate-punctate and 
sparsely granulate, each elytron with about nine large, scattered, oblong prominences on the disc. Femora 
clavate, unidentate. Anterior tibisz sinuous; intermediate and posterior tibiw angularly dilated about 
the middle externally. 
Length 54-54, breadth 24-3 millim. (@?) 
Hab. Guaremana, Senahu in Vera Paz (Champion). 
300 2 
