March, 1898.] 
Dyar : New North American Moths. 
37 
Gorgonidia mirabilior, sp. nov. 
Primaries vermilion red, crossed from the costal margin nearly to the middle by 
three yellow bands, narrowing inferiorly and edged with black except below ; an 
elongated slate colored patch beyond the cell reaching the margin, sharply truncate 
basally, its lower inner angle produced to join a large rounded similarly colored patch 
which rests on the anal angle separated from the edge by a narrow red line and reach¬ 
ing above to vein 2 and basally to near the middle of the wing. Secondaries pink¬ 
ish red, vermilion on costa and internal margin. Body vermilion, ocherous tinted on 
head and front of thorax ; posterior edge of collar pink in the middle. Posterior 
edges of abdominal segments below narrowly white. Femora, tibiae and tarsi black, 
lined and powdered with white. 
i $, Piches & Perene Vs., 2,000-3,000 feet, Peru. (Soc. Geog. 
•de Lima). Type No. 3791, U. S. Nat. Mus. 
Closely allied to Zatrephes buckleyi Druce from Ecuador, and Z. 
gatleppi Druce from Bolivia, which will also come in this genus. 
Trichromia neretina, sp. nov. 
Head dark ochre yellow on vertex, front purplish brown. Thorax purple brown; 
abdomen bright red dorsally, pale yello v below ; legs pale yellow, fore femora 
bright red in front, tibiae and tarsi outwardly ocherous. Fore wings purplish brown, 
a yellow band from middle of costa to middle of outer margin, very narro w and dis¬ 
located (at vein 4 ) centrally, wide on the margins and running very narrowly along 
costa, more widely along outer margin to apex, cutting off the apical portion of the 
ground color into a rounded spot. The ground color is darkened where it joins the 
yellow. Secondaries straw yellow, tinted with ochre on the margins. Below as 
above, but the dark marks fainter, the basal patch pale and diluted with pink, the 
apical one more uniformly slaty. Expanse, 27 mm. 
i $, Piches & Perene Vs., Peru, 2,000-3,000 feet. (Soc. Geog. 
de Lima.) Type No. 3792, U. S. Nat. Mus. 
Very similar to Neritos repanda Walk., but entirely without the sex 
mark. 
Tnchroima and Neritos may probably be separated by the sex 
mark, if not otherwise; but at present the species are mixed and I list 
them together below. Six of the species listed by Kirby seem not con¬ 
generic. I have not examined specimens, but think that amastris and 
asana Druce, as well as cutheans Druce (described since the catalogue) 
will fall near, if not in Bertholdia Schaus. 
Synopsis of the similar species of Trichromia and Neritos. 
1. Secondaries dark brown. > 2 
Secondaries pale yellow or pink... . . ^ 
2. Yellow band of primaries broken in the middle. onytes Cr. 
Yellow band crossing the wing. ^ 
3 - Abdomen dark, head red. psamas Cr. 
Abdomen red above, head yellow. sithnides Druce. 
