536 MR. H. W. BATES ON THE LEPIDOPTERA 



or varieties. It wears, in fact, the peculiar livery of a species of Ithomia characteristic 

 of the locality in wliich it is found, in this respect being like the two preceding species. 



** Collar and imng-lappets blach ; antennal club more abruptly thickened. 



10. Napeogenes pheranthes, n. sp, 



6 ? . Expanse 2". Wings narrow ; shape and position of the black parts same as in 

 N. InacUa, except that the borders are wider. Fore icing : above, with the basal and 

 apical hyaline areas faintly margined Avith purple, stained in the middle with light yellow, 

 the black posterior border reaching and slightly passing the median nervure and its first 

 branch ; outer margin spotless. Beneath, same as above, except that the marks which 

 -are black above are of a fulvous colour, and the apical margin has three white spots. 



Sind icing : above, with the discal hyaline area faintly margined with purple, yellow 

 in the middle ; the hind border wide and orange-coloured, margined with black, as in iV. 

 Inachia. Beneath, the same, except that the costa has a long fulvous stripe, and the 

 outer margin a series of five white spots. 



Body black : collar and wing-lappets spotted with white ; a central line on the meso- 

 thorax also white. Antennae black : club yellow. 



Taken at Ponte Boa. Rare. 



11. Napeogenes crocodes, n. sp. 



<?. Expanse 2". Colours above and beneath almost precisely as in Napeogenes Fharo, 

 Hewits. (Exot. Butt. Ithomia, figs. 143, 144). The hyaline areas are rather paler straw- 

 colour, the wings much narrower. Antennse black ; club yellow. 



Body black ; collar and wing-lappets spotted with white; a central line on the meso- 

 thorax also white. 



Taken at Tabatinga, in company with N. Pharo. It is evidently a local modification 

 of N. pheranthes, modified in colours to mimic N. Tharo. 



12. Napeogenes Duessa, Hewitson. 



Ithomia Duessa, Hewits. Exot. Butt. Ithomia, fig. 137. 



I did not meet with this species myself. It was taken by M. de Gand at Nauta, on the 

 Upper Amazons. 



It will be useful to enumerate the rest of the described species which I consider to 

 belong to this genus : I include a description of a new one in the list. 



1. N. ToLOSA, Hewits. Exot. Butt. Ithomia, fig. 72. 

 Mexico. 



2. N. Larina, Ibid. Ithomia, fig. 90. 



New Granada. 



This is the mimetic analogue of Ithomia Celemia, Hewits. (1. e. Ithomia, fig. 22), found 



