PREPONA. 323 
Hab. Mexico, Cordova (Riimelt); Guatemata, Cubilguitz, San Isidro (Champion), 
Retalhuleu (7. D. G. & O. S.); Nicaragua, Chontales (Belt) ; Costa Rica (Van Patten 4"); 
Panama, Volcan de Chiriqui (Champion), Chiriqui, Veraguas (Arcé)—SovutH AMERICA, 
from Colombia to South Brazil. 
There has been some confusion as to the name of this insect, which has arisen from 
what appears to us to be the inconstancy of the coloration of its underside. Mr. Bates 
in the ‘ Journal of Entomology’ notes the points of difference between P. amphimachus 
and that figured by Cramer under the name of P. menander®. He says the latter has 
the outer halves of the wings beneath of a much darker hue, and a paler outer border 
to the fore wing, separated from the dark brown by a line nearly parallel to the margin, 
while in the true P. amphimachus the outer halves of the wings beneath are of a more 
uniform pale brown colour marked with a dusky line, angular towards the apex. We 
have before us a large series of specimens of this insect (including Mr. Bates’s Amazons 
insects) ranging from Mexico to South Brazil, and we find very considerable divergence 
in coloration of their undersides, and this without reference to locality. Between the 
two extreme forms mentioned we find almost every intermediate, and are thus quite 
unable to separate them. 
This species may be readily distinguished from all others of the genus found within 
our district by having a dark straight line running from the costa of the primaries 
through the end of the cell to the anal angle of the secondaries; in the darkest 
specimens this line is absorbed in the brown colour of the outer half of the wings. 
The female is larger than the male, and the underside is usually of a nearly uniform 
pale ochreous colour, with the central straight line paler. 
b. Tuft near the inner margin of the secondaries in male yellow. 
6. Prepona gnorima. (Tab. XXXI. figg. 7, 8.) 
Prepona gnorima, Bates, Journ. Ent. ii. p. 336°. 
Alis fusco-nigris, fascia communi lata ultra cellulam anticarum fere ad angulum posticarum analem cyanea, in 
anticis intra eam purpureo lete suffusa; subtus sericeo-cinereis lineis nigris undulatis variegatis, posticis 
dimidio distali fusco et griseo lentiginosis, ocellis duobus uno ad angulum analem altero ad angulum 
apicalem notatis. 
@ mari similis sed major, fascia communi ad costam anticarum extensa et colore purpureo ad basin absente 
distinguenda. 
Hab. Guatemata, Polochic valley (Hague), central valleys, Chuacus (fF. D.G. & 0.8.) ; 
Panama, Chiriqui, Calobre (Arcé), Lion Hill (M‘Leannan).—CoLomBia'. 
Mr. Bates first described this species from Colombian specimens’, and noted its 
points of difference from those of its close ally P. demodice of Godart. 
We have since received several examples of it from Central America, where we trace 
it as far north as Guatemala. . 
It differs chiefly from P. demodice, of which it is a northern race, in the less expanse 
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