56 RHYNCHOPHORA. 
and obsoletely carinate. Elytra punctate-striate, the interstices densely rugulose and almost flat. 
Meso- and metasternum slightly hollowed between the middle coxe, the mesosternal depression limited 
anteriorly by an arcuate ridge. Legs long and slender; femora bidentate, the outer tooth very minute, 
the posterior pair without external carina ; intermediate and posterior knees each with a sharp spine. 
Length 54, breadth 23 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
One specimen. The vestiture of this insect is coloured very much as in Piazurus 
sulphuriventris, except that the narrow yellow scales are not condensed above into 
sharply-defined spots on both the prothorax and elytra. H. sulphureus approaches 
fH, spinipes. 
6. Hoplocopturus spinipes, sp.n. (Tab. IV. fig. 8.) 
Subelliptic, dull, nigro-piceous, the rostrum rufescent, the antenne ferruginous; the vestiture close and fine: 
the head with a line around the eyes, and the prothorax with three vitte, cinereous ; the elytra blackish, 
with the suture, two undulate, interrupted fascie (one broad, basal, enclosing the smooth humeral callus, 
the other, narrower, a little beyond the middle), and several small spots, cinereous; the under surface 
with whitish, the legs with narrow cinereous, scales. Eyes very large, narrowly separated. Rostrum 
carinate and closely punctate at the base. Joint 2 of the funiculus elongate, nearly as long as 3-6 united, 
3 and 4 subequal, each about as long as 1, 5-7 short. Prothorax transverse, narrowing from the base ; 
densely punctate. Elytra deeply punctate-striate, the interstices rugulose and almost flat. Meso- and 
metasternum hollowed between the middle cox, the mesosternal depression limited anteriorly by an 
arcuate ridge. Legs moderately long, rather slender; femora bidentate, the minute outer tooth distant 
from the other, the posterior pair without external carina; intermediate and posterior knees each armed 
with a very long, and the anterior knees with a shorter, spine. 
Length 43, breadth 23 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
One specimen. Small, shorter, and duller than /7/. quinquevittatus, the vestiture not 
so coarse, the markings more extended and not so sharply defined, the prothorax more 
finely punctate, the elytral interstices densely rugulose, the legs shorter. 
7. Hoplocopturus costatipennis, sp.n. (Tab. IV. figg.9; 9 a, mesosternum.) 
Subrhomboidal, broad, shining, piceous, the antenne ferruginous ; mottled above with a sparse clothing of 
whitish, fulvous, and brown scales, the white scales condensed into a small subcruciform patch at the 
middle of the suture; the vestiture of the under surface coarse and whitish. Head with a smooth shining 
space down the middle of the vertex; eyes very large, narrowly separated; rostrum rather stout, 
rugulosely punctate and carinate at the base; joint 2 of the funiculus about as long as 3-6 united, 3 and 
4 subequal in length, 5-7 short. Prothorax broader than long, rather convex, narrowing from the base, 
strongly constricted in front ; coarsely, closely punctate and incompletely carinate. Elytra short, much 
wider than the prothorax, subcordate ; coarsely punctate-striate, the interstices 3, 5, 7, and 9 very 
sharply, and 4 feebly, costate. Meso- and metasternum depressed between the middle coxe, the shallow 
transverse mesosternal depression limited on each side by a short oblique ridge. Legs moderately long ; 
femora unidentate, the posterior pair reaching to a little beyond the apex of the elytra, the intermediate 
and posterior pairs carinate externally and each armed with a narrow spine at their apex. 
Length 6, breadth 32 millim. 
Hab. Mexico, Toxpam in Vera Cruz (Sa/lé). 
One worn specimen. Recognizable by the broad, short, subcordate, sharply costate 
