64 HETEROCERA. 
D. mena, Hiibner, appear to me to be nothing but slight varieties of D. eagrus, Cram. 
I now have a very large series of specimens before me, and find that the so-called 
species are found in exactly the same locality, flying together. Mr. Butler keeps them 
distinct in his Monograph, but states that they may be only varieties of one species. I 
feel certain that such is the case, and have therefore placed them all under Cramer’s 
name. A figure showing the curious way this insect passes its pupa state will be found 
in the ‘ Proceedings of the Entomological Society’ for 1883, p. 24. 
JETHRIA. 
#thria, Hibuer, Verz. bek. Schmett. p. 120; Walker, Cat. i. p. 188. 
This genus was adopted by Walker for the reception of a species described by Stoll. 
It is most nearly allied to the genus Dinia; but it can readily be separated from it by 
its different neuration and much more robust appearance. 
1. Athria hemorrhoidalis. 
Sphinx hemorrhoidalis, Stoll, Pap. Ex. t. 12. f. 1. 
Glaucopis hemorrhoidalis, Walk. Cat. 1. p. 189. 
Akthria hemorrhoidalis, Butl. Journ. Linn. Soc., Zool. xii. p. 402. 
Hab. British Honpuras, Rio Sarstoon (Blancaneaux).—Ecuapor (mus. D.) ; BRazit. 
A single example, in poor condition, agreeing in all respects with those from Ecuador. 
ARGYROEIDES. 
Argyroeides, Butler, Journ. Linn. Soc., Zool. xii. p. 403. 
This genus was founded by Mr. Butler for the reception of a single species described 
by Walker. It now contains about six species, all from Tropical South America. 
1. Argyroeides eurypon, sp.n. (Tab. VII. fig. 3.) 
Primaries and secondaries glossy hyaline, with all the nerves black ; a very faint black margin at the apex of 
the secondaries, a small spot on each side of the head, one at the base of the primaries, and the anus pale 
yellow: head, palpi, and antenne black; thorax and abdomen black, with dirty white bands on each 
side; legs black. Expanse 1} inch. . 
Hab. Guatemata, Panajachel 5000 feet (Champion). 
Only a single example of this species was obtained. 
2. Argyroeides laurion, sp. n. (Tab. VIIL. fig. 13.) 
Primaries and secondaries hyaline, with the nerves all black, the costal and outer margin narrowly bordered 
black : head, antenne, thorax, and abdomen black, the underside of the thorax and abdomen dirty white ; 
the legs black, tarsi whitish. Expanse 1} inch. 
Hab. Panama, Volcan de Chiriqui (Champion). 
This insect is allied to the preceding species, but is very distinct from it. 
