50 RHYNCHOPHORA. 
. Prothorax rounded at the sides posteriorly . . . . . - - égnifer, sp. n. 
iM Prothorax conical . . . . .- - oe ee phenicoderes, sp. DR. 
b°. The transverse white fascia of the prothorax not reaching the short 
streak on the median lobe; the elytra flavo-cinereo-lineate at 
the base. . . . . . 
b’. Legs very slender ; prothorax and elytra shorter, the white fascia on 
the former straight, the dark fasciz of the elytra extending downwards 
on to the ventral surface: species smaller . 
6. Rostrum not extending beyond the apex of the metasternum ; prothorax 
and elytra much as in M. peciloderes, the dark fasciz of the elytra not 
extending downwards. . . . 2... ee ee ee ee 
erythroderes, sp. Nn. 
peciloderes, sp. n. 
longispinis, sp. n. 
1. Mnemynurus caloderes. (Tab. III. figg. 27, 27 a, ¢, var.) 
Mnemynurus caloderes, Heller, Abhandl. Mus. Dresd. no. 11, p. 54, tab. fig. 20°. 
Hab. Nicaracva, Chontales (Belt); Panama, Bugaba (Champion).—SovutH AMERICA, 
Ecuador (Mus. Brit.), Cayenne 1, Amazons. 
Four specimens, the one from Chontales wanting the fiery-red scales on the vertex, 
and all differing from a S.-American type communicated by M. Severin of the Brussels 
Museum, in having the rostrum ferruginous, the anterior and intermediate femora and 
a very large humeral patch on the elytra rufo-testaceous or brown, the vestiture of the 
sides of the meso- and metasternum in great part ochreous, and the prothorax a little 
less gibbous on the disc posteriorly. There are similarly-coloured examples from 
Ecuador and the Amazons in the British Museum. The anterior and intermediate legs 
vary in colour. 
2. Mnemynurus ignifer, sp.n. (Tab. III. fig. 28, ¢.) 
Very like AZ. caloderes, but differing as follows :—The prothorax with the basal third (instead of a rhomboidal 
patch on the disc behind) black in the g, wholly rufescent in the @, the vestiture of the anterior half 
rufous; the elytra black at the base in the 2 ; the legs in part ferruginous. The eyes more distant 
above, narrowly separated in front; the prothorax broader than long, more or less rounded at the sides 
posteriorly, this being especially noticeable in the 2, the median carina faint, the disc less swollen 
posteriorly ; the elytra less dilated at the sides below the base, the fifth interstice scarcely raised. 
Length 6-77, breadth 3-4 millim. (¢ @.) 
Hab. Mxxico, Mirador and Toxpam in Vera Cruz (Sailé). 
Two specimens. ‘This is the Mexican representative of the southern WW. caloderes. 
It has the smooth, stout ridge on the vertex equally prominent (though the median 
carina of the prothorax is much less distinct); the eyes are less approximate above; 
and the prothorax is more transverse, and rounded at the sides posteriorly. The 
ventral segments 2-4 (as in M. caloderes) have two almost bare stripes down the 
middle, which extend outwards along the base of 2; the apex of the fifth segment is 
truncate in the middle in the male, and rounded in the female. 
