36 
elytra along the discal portion is impunctate, being clothed with 
pile, and there is no line of granulations in continuation of the 
centro-basal ridge : the strongly flexuous line along the disk is 
present, the lateral ones are broken and confused within the ex- 
cavation, as in jE. antennator ; the whole surface is rusty tomen- 
tose and opake ; there are indications of white lines in the same 
position as in the preceding species. Body beneath, legs, and 
antennae ferruginous red. The apical ventral segment in the 
male is strongly bisinuated at the tip. Anterior femora dilated ; 
tibiae curved and grooved within. Antennae capilliform. 
Taken at Santarem. The distinctness of this species from the 
foregoing depends more upon the structure of the ventral apical 
segment than on the general colour and clothing, which seem to 
be variable in these species. 
3. jEthomerus Lacordairei, n. sp. 
subcylindricus, cano-tomentosus, fronte, vertice et thoracis vitta 
dorsali violaceo-b runnels : elytris utrinque a pud humeros macula 
magna lineata alam mentiente instructis, in medio prope basin 
fuscis, apices versus canis tuberosis. Long. 6^ lin. <5 $ . 
Head rather broader, and front more plane, than in the preced- 
ing species ; epistome and cheeks hoary white, rest of the head 
dark brown ; antennae yellowish, partially clothed with fine hoary- 
white pile. Thorax somewhat rugose transversely ; lateral tuber- 
cles acute, dorsal ones only slightly raised, hoary white, a broad 
stripe of a violet-brown colour down the centre. Elytra with the 
centro-basal ridges short, obtuse, punctate-granulate, chiefly in 
rows, but more confused in the middle towards the base ; on 
each side near the shoulders is a large yellowish spot traversed 
by the rows of granulations, which are of a darker colour and 
varied by discoloured punctures in the interstices, the whole 
producing an imitation of a wing ; the basal space between the 
two spots is blackish; the apical half of the elytra is hoary- 
white, tomentose, varied with dusky, and having white tubercles 
in rows continuous with the granulate punctures of the basal 
part. Body beneath and legs yellowish testaceous, clothed un- 
evenly with hoary-white tomentum. Fore femora and tibise 
simple. The antennse in the male are about three times, in the 
female about twice, the length of the body. 
Taken at various places on the Lower and Upper Amazons, 
closely clinging to dead boughs. As I have before stated, this 
species is the Alphus Lacordairei of Dejean^s Catalogue, accord- 
ing to French collections. 
Genus Myoxinus (Dej. Cat.?), nov. gen. 
Head narrow across the vertex, the antenniferous tubercles 
