CYRIONYX. 201 
Three specimens. The complete transverse, arcuate, white fascia below the base of 
each elytron separates C. clathratus from other allied forms with patches of white 
scales on the upper surface. 
25. Cyrionyx apicalis, sp.n. (Tab. XI. figg. 29, 29a, 2.) 
Ovate, convex, rather shining, black, the legs and antenne piceous ; the vestiture close and fine: the head and 
scutellum, the prothorax with a median line and a curved submarginal vitta on each side, the elytra with 
a patch on each shoulder and the apical third, the under surface and legs, white, the rest of the upper 
surface black. Rostrum moderately stout, strongly arcuate, rugulosely punctate at the base and very 
sparsely punctured thence to the apex, the antennz inserted at a little behind the middle. Prothorax 
transverse, rounded at the sides from near the base, constricted in front; densely, finely punctate. 
Elytra subtriangular, with narrow, deep stris, the striz: obsoletely punctate, the interstices broad, almost 
flat, rugulose. Beneath closely punctate. Legs rather stout; femora with a small, acute tooth, the 
posterior pair not reaching the apex of the abdomen; tarsal claws very small, subconnate. 
Length 24, breadth 1; millim. (Q.) 
Hab. Panama, Bugaba (Champion). 
One specimen. The albo-trivittate prothorax and the white humeral spot and large 
apical patch on the elytra distinguish C. apicalis. The legs are comparatively short 
and stout. 
26. Cyrionyx alboplagiatus, sp.n. (Tab. XI. fig. 30.) 
Subovate, rather shining, nigro-piceous, the femora and tibie obscure ferruginous ; the vestiture close: the 
prothorax with a median line and a marginal stripe on each side, and the elytra with an oblong patch 
on the second interstice below the base, an interrupted streak running down the basal half of the sixth 
interstice and extending outwards below the humeri, and an elongate-triangular patch on the disc towards 
the apex, white, the rest of their surface fuscous, the head, under surface, and legs white. Rostrum 
arcuate, stout, not longer than the head and prothorax, thickened and rugulose at the base, the apical 
half almost smooth. Prothorax transverse, rounded at the sides, constricted in front; densely, finely 
punctate. Hlytra subtriangular, with narrow, deep, feebly punctate striz, the interstices broader than 
the striw, rather convex, and densely rugulose. Beneath closely punctate, 
Length 12, breadth 1 millim. (2.) 
Hab. Guatemata, La Tinta in the Polochic valley (Champion). 
One specimen. Smaller and less robust than C. apicalis, the rostrum shorter, the 
outer white stripe on the prothorax marginal, the white scales on the elytra differently 
arranged. ‘The stria are finer than in C. clathratus. The markings on the outer part 
of the elytra form an irregular, interrupted, curved stripe. 
27. Cyrionyx sexguttatus, sp.n. (Tab. XI. fig. 31.) 
Subovate, rather convex, piceous, the antenne, tip of the rostrum, and legs more or less ferruginous; clothed 
with minute brownish and coarser whitish and ochreous scales, the latter condensed into a broad space 
on each side of the prothorax and various sharply-defined spots or patches on the elytra—a spot on the 
second interstice below the base (extending faintly downward to the apex), a transverse patch on each 
side below the shoulder (extending down the sixth and eighth interstices), and a rather large spot on the 
disc towards the apex; the vestiture of the legs and under surface whitish. Rostrum arcuate, not longer 
than the head and prothorax, sparsely punctate. Prothorax transverse, rounded at the sides, constricted 
in front; densely, finely punctate. LElytra triangular, deeply striate, the stric narrow and feebly 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, July 1907. 2DD 
