OF THE AMAZON VALLEY. B37 



in the same country. Mr. Ilcwitson, iu the text, has called attention to the close 

 resemblance, stating that he had been inclined to refer them to the same species. 



3. N. Arn.LV, Ilewils. 1. c. Illiumia, fig. 127. 



New (iranada. This species, difTerent in style of coloration fi-om any llclicdiiidc found 

 iu the Amazon region, affords another instance of the strange adaptive- resemblances 

 existing m this geuus. It mimics a small group of Cernlutia- which arc also ])cculiar to 

 New Granada, namely, C. (or Jlcloicea?) Villnlu (llewits. Exot. JUitt. lUiomw, fig. 12(!) 

 and C. Canw {ib. fig. SI). 



4. N. Xantuonk, n, sp. 



6 . Expanse 2". ikdongs to our first section, and is pi'()bal)ly another loeal form of 

 N. Inachid. "Wings elongate-narrow. Fore icing : ahurc, \\\i\i the black Ijordcrs and 

 crossbclt arranged as in N. Tnacliia, except that the crosslxdt is much more obli(jU(>, com- 

 mencing nearer the base of tlie wing; basal area opakc; l)riglit fulvous ; the crossbclt very 

 broad on the costa, then narrower, but continuing of e(iual l)readth from the cell to the 

 outer margin; subapical .spot oldong-oval, bright clear yellow ; outer margin spotless. 

 Beneath, the same, except that there is a submargiual row of seven wliite spots. 



Jlind v'liKj : above, with outer margin from before the (Mid of the costa to the anal angle 

 broadly l)lack, enclosing an orange-coloured stripe; discal area bright clear yellow. 

 liciieatli, the same, except that the basal jiart of the costa is yellow, ami that there is a 

 black stripe along the subcostal nervure, and a sul)marginal row of six white spots. 



Body dark grey ; collar aiul wing-lappets orange-coloured. Antennte black. 



Bahia and S. E. IJrazil. It somewhat resembles in its general colours Jlec/iouitis 

 Xescca, a prolific species p(!culiar also to the same part of Brazil. 



5. X. suLruuniN'A, nob. Itliontia Inacliia, var., llewits. Jvvot. Butt, lllioijiia, fig. G7. 

 Bahia. 



Genus [iuomia, I)oul)leday. 

 Doubid. and llewits. (ic-n. Diiun. Iajj. j). 122. 



I propose to limit this genus to those species in which the hind-wing (lisco-cellular 

 nervule is placed so as to form a right or acute angle with the median jier\ ure, and is 

 directed across the wing (instead of tow ards the apex) in both sexes. The head and palpi 

 arc constructed precisely as in Ceeat'utiu, Sals, Meelianilin, and Xapeofjenes. The antenn;e 

 are long, and thickened towards the ti[)S ; sometimes they are excessively elongated and 

 filiform. J'hen when tluis limited, tlic genus contains a considerable diversity of forms, 

 constituting grou2)s wliich perhaps have an equal right with CeraLuiia and ^apeojenes to 

 be called genera. The chief groups are the three follow ing ; — 



1. Jlhuiiila proper. 



The hind-wing lower radial is visible on the disk, and terminates on the hind margin, 

 the median l)ranches not being widely separated. There is a long midille disco-cellular 

 nervule which is directed obliquely outwards. The arrangement of the upper ratlial and 



Ic 2 



