AMETRIS. By L. B. Prout. 
13 
but without such definite (lighter and darker) alternate shades between the postmedian and subterminal lines; 
underside less reddish and more sharply marked than in coenobiata, with the subterminal more deeply dentate. 
“Brazil”, probably from Bates’s Amazon expedition. 
A. zoe Prout (1 g). Intermediate in size and in the antennal pectinations between euctenachlora and 
injunctaria, but with the coloration of the most purplish forms of perigearia. § palpus with the 3rd joint a 
little longer and more slender than in that of maronii. British Guiana; also from Maroni River and Teffe. 
A. injunctaria Hbn. (1 g) is a little smaller and more brownish and is the only species of the section 
yet known from the Rio Janeiro district. — ab. hormota nov. (1 g) has a subterminal band of almost confluent 
dark spots, almost exactly as in maronii but becoming obsolete towards costa of forewing. Minas Geraes (Frtjh- 
storfer), type <$ in coll. Bastelberger. 
A. doris Prout, from Para, is like a diminutive (30—32 mm) zoe but with the antennal pectinations 
of the 3 little longer than in Section B. Palpus of the $ with the 3rd joint considerably longer than in in¬ 
junctaria, but not so extreme as in perigearia. Also known from British Guiana. 
B. Section Achlora G-uen. A with drab or buff hair-tufts at the 2nd median vein of the hindwing 
beneath, pectinations moderate or rather short; 1st median of hindwing often stalked. 
A. coenobiata Feld. (1 g). $ palpus with 3rd joint shortish, hindwing with 1st median arising from 
hind angle of cell. A large, bright brown species, of somewhat variegated appearance and with large cell-dot 
on hindwing. Bogota. The is unfortunately not quite certainly known, but a worn q from Muzo which 
seems to belong to it shows a hair-tuft directed forward from M 2 of hindwing beneath, antennal pectinations 
moderate, ajiical third not pectinate. 
A. maronii Th.-Mieg (1 g) is similar, in its banded appearance, to coenobiata, but has more nearly 
the size and ground-colour of perigearia. The $ has nearly the structure of cuprinaria A, but lacks the supple¬ 
mentary tuft of hair between the 2nd median and the fold on the hindwing. $ palpus rather longer than in 
coenobiata, with rather longer 3rd joint. Hindwing with M 1 in the G very shortly stalked, in the $ just separate. 
Antemedian line of forewing forming two strong outward curves. Maroni River and Trinidad. Also a q from 
Gorgona Island, off Colombia (St. George Expedition), and a faded G from the Amazons (coll. Felder), which 
I formerly (Nov. Zool. Vol. 23, p. 154) mistook for coenobiata. 
A. perigearia Guen. (1 g) is remarkable for the very long, slender 3rd joint of the $ palpus. Hindwing 
with M 1 arising close to, or in the G at the posterior angle of the cell, M 2 of the G beneath with a suberect 
tuft of hair in front and a more appressed patch behind. Antennal pectinations of the G short, the longest ones 
less than 3 times the diameter of the shaft. Brazil (loc. typ.), Argentina, Paraguay, Peru and Colombia. — 
sancti-emesti form. nov. (? sp. n.) is larger than the G<S of perigearia, with the hindwing relatively ampler, 
its distal margin being more rounded; structure otherwise as in perigearia, the antennal pectinations a very 
little stronger, M 1 from hind angle of cell; coloration and markings as in the most purple forms of the allies. 
Bolivia: San Ernesto, 68° W., 15° S., 1500 m., August—September 1900 (Simons), type in Mus. Tring. 
A. cuprinaria Guen. (= cuprearia Guen.) (1 g). Extremely like perigearia, but with appreciably longer 
antennal pectinations and with the 1st median of the hindwing well stalked in the G, more shortly or scarcely 
stalked (but never separate) in the $. Trinidad, Venezuela, the Guianas (Guenee’s type from Cayenne) and 
the Amazons. 
Tribe Ametridicae. 
The following four genera, which form perhaps a separate subfamily, are characterized by their venation 
which (excepting the Oenochromine separation of the costal of the hindwing from the cell) resembles that of 
Anisodes, all the 5 subcostals of the forewing being stalked, sometimes with a very small areole at the base 
of the stalk. Antennae long and legs slender, as in the otherwise unrelated genera Eumelea and Zanclopteryx. 
Forbes (Psyche, Vol. 32, p. 109) considers that the antennal structure shows more relationship to the Apicia 
and Gleora groups of Geometrinae than to the true Oenochrominae. 
12. Genus: Ametris Hbn. 
Differs from the 3 following genera in that the discocellulars of the forewing bear no tuft of raised 
scales, while the hindwing has neither the irregular shape nor the large hyaline patch of Macrotes. Antenna 
of G with long, fine pectinations. Hindtibia with 4 normally placed spurs. Only two species are known. 
A. nitocris Gram. (= nitocritaria Hbn., peninsularia Grote) (1 h). A well-known species, occurring 
in Mexico, Florida, Dominica, Trinidad, and common throughout Central and the Northern part of South 
zoe. 
injunctaria. 
hormota.. 
doris. 
coenobiata. 
maronii. 
■perigearia. 
sancti- 
emesti. 
cuprinaria. 
nitocris. 
