306 Mr. H. W. Bates on Geramhycitlce 
Genus Cycnidolon, 
Thomson_, Syst. Ceramb. p. 217 ; Lacord. Gen. viii. 333. 
The third and sometimes the fourth antennal joints in 
the c? are greatly thickened, fusiform or oval, and 
carinate in both sexes ; femora abruptly clavate, and the 
hind pair bidentate at the apex; tibiae carinate. 
1. Cycnidolon Batesianum. 
Ihidion Batesianum, White, Cat. Longic. Brit. Mus. 
p. 230, pi. vi. f. 6. 
Cylindricum, nigro- fuscum; elytris dimidio apicali 
cinereo-pubescenti, antice fascia tenui testaceo-alba mar- 
ginato, dimidio basali nitido, macula triangular! lateral! 
ante medium, apice longe unispinosis ; antennis pallid e 
rufo-testaceis, articulo 3io a basi gradatim incrassato, 4to 
ovato (^); pedibus testaceo-rufis. 
Long. 3J lin. ^ . 
I do not find a female example of this species among 
my series. 
Hah , — Eiver Tapajos and Ega. 
2. Cycnidolon hinodosum, n. sp. 
C. Batesiano valde affine; differt (d') articulo 3io 
antennarum basi pedunculato abrupte clavato, 4to etiam 
clavato sed pedunculo breviori ; elytrorum fascia obliqua 
albo-testacea a parte cinerea bene distante. 
. Long. 2| lin. c?. 
Hah. — Ega. 
3. Cycnidolon approximatum. 
Ihidion approximatum, White, Cat. Longic. Brit. Mus. 
p. 231. 
A C. Batesiano difiert articulo 4to antennarum hand 
inflate, linear!, macula fasciaque elytrorum apud latera 
approximatis^ a plaga postica cinerea distantibus. 
$ . Articulis 3-4 antennarum linearibus. 
