438 RHOPALOCERA. 
these occur within our limits, of which A. carausius is spread over the whole of our 
region; the others belong chiefly to more southern parts, though A. roratus occurs in 
Guatemala. 
The primaries of A. formosus differ from those of A. chrysus in having practically no 
upper discocellular, though in A. carausius there is a very short one; and the front legs 
of the male of 4. formosus have no tarsal spines as in the allied genus. The legs are hairy. 
The tegumen of the male male sexual organs in A. formosus has a very short central 
spine between the lateral lobes ; the harpagones have two long rods, both of them dentate 
along their upper edge, and setose towards their extremity, the upper lobe has also a 
single dentate process beyond the middle; the penis is straight for half its length, then 
curves upwards and finally downwards, there is the usual strap from its centre to the 
base of the harpagones. These organs in A. caraustus differ in the form of the harpa- 
gones, the upper rod is flattened and widened out towards its extremity, where it is 
strongly setose on its outer surface as well as along its upper edge, the lower rod is. 
much shorter, with a few hairs at its extremity. 
a. Wings beneath yellowish white, with jewelled spots. 
1. Anteros cupris. 
Anteros cupris, Hew. Ex. Butt., Erycinide, f. 4, 5’. 
Alis fuscis, anticis macula magna subtriangulari infra cellulam lactea ; subtus lacteis, maculis saturate castaneis. 
>] 5 > ? 
punctis metallicis notatis undique diffusis, posticis costa lactea. 
> mari similis macula anticarum permagna; posticis preter aream costalem et lineam submarginalem lacteis. 
Hab. Panama, Chiriqui (£tbbe), Bugaba (Champion).—CoLomBIa ; VENEZUELA’. 
This is the northern form of A. acheus of Guiana and the valley of the Amazons, and 
certainly very closely allied to it. The milky spot on the primaries is considerably 
larger, and the secondaries have nearly the whole of the outer portion of that colour ; 
the chestnut spots beneath are not quite so dark in colour, and the metallic spots inside 
them are of less extent. It was described by Hewitson from specimens said to come 
from Venezuela. 
Found on the margins of the forest of the low country (Champion). 
2. Anteros formosus. 
Papilio formosus, Cram. Pap. Ex. t. 118. f. G’. 
Anteros formosus, Bates, Journ. Linn. Soc. Zool. ix. p. 435°. 
Papilio cresus, Fabr. Sp. Ins. ii. p. 117°. 
Papilio valens, Fabr. Mant. Ins. ii. p. 67%. 
Anteros micon, Druce, Cist. Ent. i. p. 360°. 
Alis fuscis, macula rotunda et posticarum costa lacteis; subtus ochraceo-lacteis maculis castaneis metallico- 
gemmatis, linea submarginali aurea, intra eam altera castaneo-atomata. 
© mari similis. 
