Ill 
hair-like, setose both above and beneath. Thorax convex ; lateral 
spines tuberculiform, and placed behind the middle. Elytra 
free from tubercles and ridges, obtusely truncated. Legs mode- 
rate ; thighs clavate ; basal joint of hind tarsi about equal to 
the two following taken together. 
c? Apical ventral segment obtusely rounded j dorsal sharply 
truncated, with the angles distinct. 
2 unknown. 
The species which constitutes this genus would probably be 
better placed in a section or subgenus of Sporetus. It differs 
greatly from the Sporeti in colour, being of a rich changeable 
silky-green hue. 
Seriphus viridis, n. sp. 
S. supra viridi-sericeus, purpureo nitens, nigro setosus : thorace - 
postice macula, elytris plagis tribus cinereo-tomentosis. Long. 
3f lin. c? . 
Head minutely punctured, black ; vertex silky green. An- 
tennae black; base of the third joint and a broad ring on the 
fourth grey. Thorax shagreened silky green, the middle of the 
hind margin with a patch of ashy tomentum. Elytra briefly 
truncated at the tip; surface thickly punctured towards the 
base, and having besides many rows of setiferous punctures, 
running from base to apex ; silky green, changing with the play 
of light into dullish purple ; a rounded spot of ashy tomentum 
on the disk of each before the middle, and a similar common 
spot over the suture near the apex. Legs shining black. Body 
beneath black, clothed with scant ashy pile. 
One example only of this peculiarly-coloured species occurred, 
namely at Ega, on the Upper Amazons. 
Genus (Edopeza, Serville. 
Leiopus (§ (Edopeza), Serville, Ann. Soc. Ent. Fr. iv. p. 88. 
This group was distinguished by Serville from Leiopus on 
account of the singular dilatation of the basal joint of the 
anterior tarsi, and the length of the basal joint of the hind 
tarsi, which equals the three following taken together.^^ The 
enlargement of the anterior tarsi, which is peculiar to the males, 
seems to be only a specific character, as several other species, 
agreeing with Serville^s (Edopeza in shape of thorax and tarsi, 
style of coloration, and other minor features, do not present this 
peculiarity. The group seems to be distinguished from Trypa- 
nidiuSy to which it is otherwise closely related, by the great 
narrowness of the prosternum, the depressed mesosternum, and 
the length of the hind tarsi. The thorax is convex, and widens 
from the front to the tips of the lateral spines, which are conical 
