AMETRIS.—GUSTIANA. 425 
This species appears to be generally rare, but from Guatemala we have received a 
fair number of specimens. 
2. Ametris cordovaria. 
Ametris cordovaria, Guén. Sp. gén. des Lép. ix. p. 388 (3 )’. 
Ametris cordovalis, Walk. Cat. xvi. p. 6”. 
Hab. Mexico, Cordova, Vera Cruz !?. 
CANATHA. 
Canatha, Walker, Cat. xxxiv. p. 1125 (1865). 
Walker states that this genus is “allied to Platydia, from which it may be distin- 
guished by the structure of the palpi”; the two species he included in it are both from 
Tropical America, one from the Amazons, the other from Honduras. 
1. Canatha subangularis. 
Canatha subangularis, Walk. Cat. xxxiv. p. 1126°. 
Hab. Honvuras (Dyson '). 
GUSTIANA. 
Gustiana, Walker, Cat. xxiv. p. 1099 (1862). 
Gaala, Walker, Cat. xxxiv. p. 1128. 
Walker founded the genus Gustiana upon a Brazilian insect which he had already 
described as a Platydia, with which it does not agree; we therefore retain the generic 
name used by him when describing the species a second time in the Geometride. 
1. Gustiana abditalis. 
Platydia abditalis, Walk. Cat. xvi. p. 11 (1858)’. 
Gustiana subflexata, Walk. Cat. xxiv. p. 1100’. 
Herminia (?) figuralis, Walk. Trans. Ent. Soc. Lond. 1862, p. 112°; Walk. Cat. xxxiv. p. 1158 *. 
Gaala dispunctalis, Walk. Cat. xxxiv. p. 1129”. 
Hab. Guatemata, San Gerénimo (Champion).—Braziu 234°, Rio Janeiro 1. 
I have compared the types of Walker’s species and find that they are without doubt 
conspecific ; all his specimens are from South-east Brazil. 
2. Gustiana libitina, sp.n. (Tab. XXXV. fig. 1, ¢.) 
Male. Primaries pale greyish-brown, crossed from the costal to the inner margin by two yellowish-brown 
lines (the first near the base, the second beyond the middle), a very faint waved submarginal line extend- 
ing from the apex to the inner margin close to the anal angle, and a blackish streak at the end of the 
cell; secondaries uniformly greyish-white, the marginal line brown, the fringe grey: head, thorax, and 
upperside of the abdomen greyish-brown, the underside of the latter and the legs yellowish-brown 
BIOL. CENTR.-AMER., Heter., Vol. 1., December 1890. 3 hh 
