ISCHNOPTERYX.—SPARGANTIA. . 159 
' the apex greenish-fawn-colour,—that of the secondaries pale yellow, shaded with reddish-brown, and 
thickly irrorated with dark brown scales, crossed beyond the middle by an indistinct black waved line: 
head, thorax, and abdomen dark brown above, reddish-brown beneath, the antennz dark brown, the legs 
reddish-brown. Expanse 2,1, inches. 
Hab. Panama, Chiriqui (Trétsch, in mus. Staudinger). 
Allied to I. chryses. 
7. Ischnopteryx (?) aristophilides, sp.n. (Tab. LV. fig. 28, s.) 
Male. Primaries dark brown, with the outer margin broadly bordered with greyish-brown, three spots near 
the apex and one close to the anal angle dark brown, the marginal line black, the fringe dark brown ; 
secondaries pale brown, paler at the base and along the inner margin; the underside uniformly pale 
brown, the primaries with a whitish mark near the anal angle, both wings with a fine, waved, white 
marginal line: head, thorax, and antenne dark brown, the abdomen and legs paler.—Female. Very 
similar to the male, but without the greyish-brown border to the primaries. Expanse 2,1), inches. 
Hab. Costa Rica, Volcan de Irazu 6000 to 7000 feet (Aogers). 
I place this species in the genus Jschnopteryx with considerable doubt. — 
g. Ischnopteryx (?) polymenes, sp. n. (Tab. LV. fig. 29, ¢.) 
Male. Primaries dark brown, crossed from the costal to the inner margin by two darker brown waved lines— 
the first near the base, the second beyond the middle,—with a dark brown spot at the end of the 
cell, and a marginal row of small brownish-white spots extending from the apex to the anal angle, the 
fringe dark brown ; secondaries greyish-brown, crossed beyond the middle from the costal to the inner 
margin by a faint waved brown line; the underside uniformly pale brown, the end of each vein 
yellowish-white : head, antenne, thorax, abdomen, and legs dark brown.—Female. Very similar to the 
male. Expanse 1? inch. 
Hab. Costa Rica, Volcan de Irazu 6000 to 7000 feet (Rogers). 
Allied to the preceding species, I. aristophilides, but very distinct from it in both 
sexes. 
SPARGANIA. 
Spargania, Guenée, Sp. gén. des Lép. x. p. 404 (1857) ; Walker, Cat. xxv. p. 1875. 
1. Spargania tesserulata. 
Spargania tesserulata, Feld. & Rogenh. Reise der Novara, Lep. t. 131. figg. 39, 39a (¢)'. 
Spargania longipalpata, Thierry-Mieg, Le Nat. 1892, p. 262 (¢) *, 
Hab. Mexico, Jalapa (F. D. G., Hoge; coll. Schaus), Coatepec (Brooks; coll. 
Schaus); Guaremata, San Gerdénimo, Purula (Champion); Costa Rica, Rio Sucio 
(Rogers); Pawama, Volcan de Chiriqui 2000 to 4000 feet (Champion).—CoLomsia, 
Bogota!; PERv?. | | 
With a large series of specimens before me I am unable to consider S. longipalpata, 
Thierry-Mieg, a distinct species. These specimens vary considerably as regards the 
dark markings on the primaries, and also in the extent of the white on the secondaries, 
one Panama example having the secondaries almost entirely black, excepting the two 
