PYCINA.—SIDERONE. 331 
1. Pycina zelys, sp. n. 
Pycina zamba, Butl. & Druce, P. Z. 8. 1874, p. 341%. 
Alis rufo-brunneis, posticis ad angulum analem saturatioribus, anticis bitriente apicali nigris, fascia maculosa 
arcuata a costa ad marginem externum extensa et macula subapicali costam fere attingente albis, posti- 
carum costa late nigricante; subtus anticis nigris basi fulvis maculis albig sicut in pagina superiore, apice 
et posticis omnino marmoratis, harum coste dimidio basali albicante, posticis ocellis quinque submargina- 
libus ornatis, illo inter ramos medianos maximo. 
Obs. P. zambe affinis, sed anticis minus rufo-brunneis, marginis interni dimidio haud superante. 
Hab. Costa Rica (Van Patten), Rio Sucio (Rogers); Panama, Volcan de Chiriqui 
(Champion). 
This species is closely allied to Pycina zamba, but differs in having the fulvous of the 
base of the primaries more restricted and somewhat darker in colour. The true P. zamba 
is a scarce species, being found in Colombia, Ecuador, and Venezuela; P. zelys seems 
equally rare in Costa Rica and Panama, whence we have seen but few specimens. 
SIDERONE. 
Siderone, Hubner, Samml. ex. Schmett. ii. t. 56; Westw. Gen. Diurn. Lep. p. 320. 
Siderone comprises several species, the limits of which are not very definite, owing to 
the amount of variation to which they are subject. All, however, are strictly tropical 
insects, and the genus spreads from Southern Mexico to South Brazil, and is found in 
some of the West-Indian Islands. Within our limits we recognize five species. 
Though greatly resembling Anwa in its general construction, the neuration of the 
primaries is strictly normal in character, and does not present any of the running 
together of the subcostal branches with the costal, which forms so curious a feature in 
Anea and its immediate allies Hypna and Protogonius. 
In Siderone ide the subcostal of the secondaries emits two branches before the end 
of the cell, and the third and fourth not far apart, some way beyond it. The upper and 
middle discocellulars are both present, but short; the lower discocellular meets the 
median some way beyond the origin of the second branch. The front legs of the male 
have a stout coxa — 3 femur-+ trochanter; tibia< femur; tarsus =2 tibia; the terminal 
joint of the palpi is short, = about § the middle joint. The antenne have about 52 joints, 
and terminate in a moderate club. The secondary male organs have a strong tegumen 
terminating in a decurved spine, below which are two short spines; the harpagones 
have a pointed end, and are covered towards the extremity with long strong hairs. ° 
a. Wings of both sexes testaceous or tawny. 
1. Siderone isidora. 
Papilio isidora, Cr. Pap. Ex. t. 235. f. A, B, EH, F’. 
Siderone isidora, Bates, Journ. Ent. ii. p. 3437. 
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