EUPTYCHIA. 91 
This well-marked species belongs to the same group as £. gemma, with which 
£. phocion of the United States is usually associated, and has the apical angle of the 
secondaries produced as in EL. argentella and E. rogerst. The peculiar tawny marks of 
the secondaries render the species very distinct from its allies. This marking on the 
upper surface is subject to some variation, being more restricted in some specimens 
and divided by the brown of the inner portion of these wings running through it 
longitudinally. 
Mr. Rogers sent us a good series of specimens, all taken on the slopes of Irazu, in 
Costa Rica. 
We have figured the type. 
30. Euptychia nelsoni, sp. n. 
Alis supra fusco-brunneis olivaceo tinctis, anticarum apicibus et posticarum marginibus obscurioribus, his maculas. 
obsoletas nigras includentibus ; subtus anticis fere unicoloribus fuscis, posticis paulo grisescentioribus, fascia 
lata recta valde distineta a costa ad angulum analem ducta albicante, et fascia altera interiore sinuata 
indistincta fusca, ornatis ; ocellis duobus submarginalibus ad medium marginis externi, maculas argenteas 
sagittiformes includentibus, maculis quoque similibus ad marginem reliquum. Exp. 1°75 poll. 
© mari similis, sed major; posticarum area interna fere ochracea, margine obscuro angustiore, et maculis 
submarginalibus nigris magis distinctis; subtus quoque fascia conspicua albicante absente distinguenda. 
Exp. 1:9. 
Hab. Guatemata, Cerro de Zunil (Champion). 
Of this pretty and distinct species Mr. Champion has recently sent us a good 
series of specimens, which he captured in the forests of the southern slope of the Cerro 
de Zunil, at an altitude of about 6000 feet above the sea. When exploring this moun- 
tain, Mr, Champion stayed at Las Nubes, a coffee-estate founded by the late Mr. William 
Nelson, an old friend of ours, after whom we have named the species. 
In the series before us we trace a slight variation in size, and also in the distinctness 
of the dark margin of the secondaries from the rest of the wings. On the underside 
the conspicuous transverse band is broader in some specimens than in others; and in 
one example the middle portion has a few dark scales, rendering it less pure in colour. 
As regards the single female specimen, it agrees sufficiently with the males in every 
particular, except in wanting the pale band of the secondaries beneath, which is 
replaced by dark rusty red. As the position of this band is indicated, and as we see no 
other evidence pointing to the presence of a second species, we incline to the opinion 
that this female is the normal female of the males taken in the same woods. The 
difference, however, is more than is usually seen between the sexes of species of 
Euptychia. The nearest ally of E. nelsoni appears to be E. philodice of Costa Rica. 
31. Euptychia argentella. (Tab. VIII. fig. 26.) 
Euptychia argentella, Butl. & Druce, Cist. Ent. i. p. 98°; P.Z.S. 1874, p. 337°. 
N2 
