52 RHYNCHOPHORA. 
5. Mnemynurus peciloderes, sp. n. (Tab. IV. figg. 1, 1 a.) 
Elliptic, nigro-piceous, the head and the front of the prothorax rufo-piceous, the antenne, rostrum, femora, 
and tibie ferruginous; the vestiture rather coarse: the head between and behind the eyes white, carmine- 
red on each side of the bare space on the vertex ; the prothorax with three transverse marks at the base, 
and a narrow, straight, transverse fascia in front of this, connected along the middle with the central 
basal spot, white, the anterior half carmine-red; the elytra with two irregular, undulate, transverse 
fasciee (which become straighter and sharply defined on the flanks), the base, and an interrupted sutural 
stripe, white, the other portions of the surface with a few minute brownish scales; the under surface 
white, except on the four transverse almost bare spaces at the sides. Head closely punctate, the vertex 
not carinate, the eyes almost contiguous in front and narrowly separated above; rostrum longer than 
the elytra, nearly reaching the first ventral suture, carinate and rugulosely punctate at the base. 
Prothorax much broader than long, obliquely narrowing from near the base, constricted in front ; 
densely, finely punctate. Elytra short, subcordate, blunt at the apex, depressed along the suture 
anteriorly ; rather finely punctate-striate, the interstices rugulose and almost flat. First ventral segment 
with a shallow groove. Anterior cox with the inner portion dentiform. Legs very long and slender ; 
femora each with a small, narrow tooth, the knees sharply dentate. 
Length 34, breadth 13 millim. 
Hab. Panama, Bugaba (Champion). 
One specimen. ‘This species is smaller than its allies, and has the prothorax and 
elytra shorter, and the legs much more slender; the white fascia on the prothorax is 
straight and the white scales on the elytra are condensed into undulate fascie. 
6. Mnemynurus longispinis, sp. n. (Tab. IV. figg. 2, 2a.) 
Elliptic, short, black, the legs, rostrum, and antenne rufo-testaceous ; above thickly clothed with narrow 
scales: the anterior half of the prothorax and a line behind the eyes above rust-red, the rest of the 
surface white, with the exception of a faint transverse patch near the shoulder, a larger patch on the 
outer part of the disc near the apex, and a transverse median fascia, which are more or less fuscous ; 
the under surface closely set with coarser, oval, pure white scales, the legs with white, hair-like scales. 
Head closely punctate, the vertex not carinate, the eyes very narrowly separated ; rostrum nearly reaching 
the apex of the metasternum, rugulose and carinate at the base. Prothorax much broader than long, 
narrowing from near the base, feebly constricted in front ; densely, finely punctate. Elytra subcordate, 
blunt at the apex, depressed along the suture anteriorly ; punctate-striate, the interstices rugulose, flat. 
Legs elongate, the posterior femora not longer than the elytra, the intermediate and posterior pairs each 
with a small narrow tooth, the knees very sharply dentate. 
Length 34, breadth 2 millim. (92?) 
Hab. Panama, Bugaba (Champion). 
Two specimens, one with the darker, partially denuded, elytral markings more 
distinct than in the other. Very like MW. peciloderes, but with the rostrum not 
extending beyond the apex of the metasternum, the legs a little less elongate, the 
knees still more sharply dentate, the dark fasciz of the elytra less developed and not 
extending downwards on to the ventral surface. The anterior femora are obsoletely 
dentate or unarmed beneath. The rostrum is only a little longer than in Hoplocopturus 
javeti and H. nigripes. 
