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larger branches of fallen trees in the virgin forest. In crawling 
over the bark, it holds its antennae straight forwards, and has a 
most striking resemblance to a greenish-coloured species of 
Ptychoderes belonging to the family Curculionides, which swarms 
at times on the same trees. I have a specimen from Yurimaguas, 
on the Huallaga, near the Andes, which differs (as all the other 
examples do which I have seen from the same place) from the 
Ega type only in being of a dull-grey eolour without any greenish 
or olivaceous tinge. 
Genus Anisocerus, Serv. 
Serville, Ann. Soc. Ent. Fr. iv. p. 79. 
This genus was founded by Serville on the Lamia scopifera of 
Germar, apparently the only species known at that time. Since 
then, a number of species have been added which do not belong 
to the genus, or at least would render its definition almost im- 
possible were they to be included. I think it better to restrict 
it to those species which present the following characters : — 
Body oblong, compact, subdepressed. Head broad; antenni- 
ferous tubercles slightly raised. Antennse 11-jointed in the cf, 
the terminal joint about half the length of the penultimate; 
10-jointed in the 2 ; the third joint in both sexes furnished at 
the tip with a compact rounded brush of short silky hairs. The 
mesosternum is very short, deeply depressed in the middle and 
on the hind edge in conjunetion with the fore margin of the 
metasternum. The ligula is narrow at the base, then abruptly 
dilated, the lobes widely divergent. The palpi are gradually and 
obtusely pointed. 
Anisocerus Onca, White. 
Anisocerus Onca, White, Cat. Long. Col. Brit. Mus. ii. p. 405, pi. 10. f. 4. 
Local var. a, A. Fonteboensis. Head and thorax as in Onca, 
Elytra at the base reddish brown and granulated, each with two 
rounded spots, and the humeral callus black; the rest of the 
surface has four rows of quadrate black spots divided only by 
narrow lines of a reddish-brown colour, and before the apex is a 
transverse black streak; the spaces between these black spots 
are quadrate in shape, and of a pale ochreous hue. Abdomen 
beneath varied with black. This variety diverges from the type 
only in the increased size and squared shape of the black spots, 
and the pallid hue of the equally squared interspaces. It is 
intermediate both in character and in geographical position be- 
tween the type and local var. h, and is found near FonteBoa, on 
the Upper Amazons. 
Local var. b. A. Olivencius. Much larger than the type, being 
7-7^ lines in length. The occiput is black, with two pale 
