86 . . HETEROCERA. 
San Gerénimo (Champion) ; Panama, Chiriqui (Ribbe, in mus. Staudinger ).—BrRaziu }23; 
AMAZONS, Paré?; ARGENTINE REPUBLIC. 
Of this variable insect we have received but very few specimens as yet from Central 
America, | 
; _ | DYSPTERIS. 
Dyspteris, Hiibner, Verz. bek. Schmett. p. 286 (1816); Guenée, Sp. gén. des Lép. ix. p. 361 : 
~ Walker, Cat. xxii. p. 557; Packard, in Report of the U.S. Geol. Survey of the Territ. x. p. 368, 
t. 4, fig. 6 (neuration) (1876). 
This genus may easily be known by the diminutive secondaries. It is exclusively 
American, ranging from Canada to Brazil. 
1. Dyspteris abortivaria. 
Dyspteris abortivaria, Herr.-Schiaff. Samml. aussereur. Schmett. p. 62, fig. 346 (¢)*; Guen. Sp. 
gén. des Lép. ix. p. 363°; Walk. Cat. xxii. p.557°; Pack. in Report of the U.S. Geol. Survey 
of the Territ. x. p. 368, t. 10. fig. 75 (¢)*. . 
Hab. Norta America}? 3, Canada to Alabama*,—Mexico, Jalapa (coll. Schaus) ; 
Panama, Chiriqui (ibe), Obispo (Salvin, in mus. D.). 
Of this northern species we have only seen four specimens from within our limits. 
2. Dyspteris inzequaria. 
Dyspteris inequaria, Guen. Sp. gén. des Lép. ix. p. 363 (¢ ?)*; Walk. Cat. xxii. p. 5587; Butl. 
Trans. Ent. Soc. Lond. 1881, p. 330°. 
Dyspteris diminutaria, var., Walk. Cat. xxii. p. 558 *. 
Hab. Honpuras (Dyson *); Costa Rica, Volcan de Irazu 6000 to 7000 feet (Rogers) ; 
Panama, Chiriqui (Arcé, in mus. D.; Ribbe, in mus. Staudinger).—Gutana, Cayenne ! 2; 
Amazons 3, Para? 4, Ega? 4, Santarem 4, 
Apparently the commonest species of the genus. Southern specimens are darker 
than those from Central America. 
_ 8. Dyspteris naiadaria. | 
Dyspteris naiadaria, Guen. Sp. gén. des Lép. ix. p. 8363 (g ?)*; Walk. Cat. xxii. p. 5597. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith); Guarrmaua, San Isidro 1600 feet 
(Champion).— VENEZUELA?; Braziu}2, — 
This species is very closely allied to D. inequaria, Guen. 
OMPHAX. 
Omphax, Guenée, Sp. gén. des Lép. ix. p. 368 (1857). 
1. Omphax nenia, sp.n. (Tab. XLIX. fig. 13, 2.) 
Female. Primaries pale pea-green, slightly irrorated with white scales, crossed from the costal to the inner 
margin by two fine slightly waved white lines; secondaries silky white, with a greenish tinge round the 
