PIAZURUS. 17 
middle), with the strie finely punctate from the base, and the vestiture of the flanks of 
the prothorax dense and uniform. The prothorax and elytra have several scattered 
sulphur-yellow spots (six or eight on each elytron being usually larger than the rest), 
and the entire flanks and under surface (a broad almost smooth space down the middle 
excepted) are similarly coloured. The first ventral segment is broadly sulcate down 
the middle in both sexes, and the fifth is sinuato-truncate at the apex in the male. 
11. Piazurus stigmaticus, sp.n. (Tab. I. figg. 31.) 
Subovate, broad, dull above, black, the antenne and the tips of the tarsi ferruginous; the upper surface 
variegated with minute fulvous, dark brown, and whitish scales, the whitish scales on the prothorax 
condensed into a narrow sinuous submarginal line, which extends on to the humeri, the fulvous scales 
condensed into interrupted lines on the elytra, the flanks of the prothorax in great part black ; the elytra 
with a very large, common, transverse patch at about the middle, extending for a short distance up the 
suture, a small triangular lateral patch in a line with it, an oblique mark on each side of the scutellum, a 
small spot exterior to it, and another spot near the apex, velvety-black; the vestiture of the under surface 
and legs fulvous and white intermixed, rather sparse, the fulvous scales clustered into patches at the sides 
of the ventral segments 2-4, the femora fusco-annulate. Head densely punctate, carinate between the 
narrowly-separated eyes; rostrum densely punctate and sharply carinate at the base and sparsely punctate 
thence to the tip, the apical half smoother in the 9; joints 2 and 3 of the funiculus equal in length, 
3-7 transverse. Prothorax transverse, subconical, slightly constricted in front ; densely, finely punctate 
and obsoletely carinate. Elytra short and broad, rounded-triangular, flattened on the disc anteriorly, 
conjointly rounded at the apex; punctate-striate, the interstices densely, minutely punctate, the outer 
ones feebly convex. Beneath closely punctate; ventral segments 1 and 2 slightly depressed down the 
middle, 5 subtruncate at the apex in the g, and rounded at the tip and plicate along the centre in the 2. 
Length 63-8, breadth 32-42 millim. (¢ 2.) 
Hab. Nicaragua, Chontales (Junson); Costa Rica, Turrialba 500 metres (Biolley) ; 
Panama, Bugaba (Champion). 
Hight specimens. A species with comparatively short, broad elytra, which are 
conjointly rounded at the apex, and ornamented with sharply-defined, dense, velvety- 
black patches, the one crossing the suture at about the middle very large and rounded 
externally. The white submarginal line on the prothorax is evanescent. The black 
patch at the sides of the elytra sometimes extends upwards to the shoulder. 
12. Piazurus melanostictus. (Tab. II. fig. 2.) 
Piazurus melanostictus, Boh. in Schénh. Gen. Cure. iv. p. 6657. 
Hab. Nicaragua, Chontales (Belt, Janson); Panama, Bugaba, Volcan de Chiriqui 
(Champion).—Souta America, Cayenne}. 
Found in numbers in Chiriqui. This species may be known by its conical, more or 
less distinctly carinate prothorax, and the subtriangular, depressed elytra, which are 
rounded at the apex and have each an oblong velvety-black patch near the suture at 
about the middle, the patch preceded and followed by a small white spot and sometimes 
coalescent with that on the opposite elytron. The second joint of the funiculus is 
about one-half longer than the third. 
BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, August 1906. DD 
