FORMIANA; ONCOPUS; MYRICE. By L. B. Prout. 
127 
Muzo. — ab. apoplyta ab. nov. Black patch of hindwing wanting on the upperside, merely indicated by a slight apoplyta. 
greyish suffusion, as in subsp. josephi. Type a small yellow (from Bogota) in the British Museum. — ab. 
reducta Feld. (16 k) shows the opposite extreme, the hindwing black with the exception of the narrow posterior reducta. 
streak and a tiny dash distally to the cell. Bogota. — josephi subsp. nov. (17 k). Much like large ab. apolyta, josephi. 
but with the black border of the hindwing narrower, the yellow patches of the forewing respectively longer 
(the longitudinal one) and broader (the subapical). Costa Rica, several specimens, the type from San Jose 
(H. Schmidt) in the British Museum. — velata Druce (16 k) is another large form and it is just possible that velata. 
josephi may have to sink to it. Rather brightly coloured, the black border of the hindwing broad (2 mm), its 
costal part proximally widened so as to encroach on the anterior part of the cell (the only known $ of josephi 
shows no such encroachment). Volcan de Chiriqui, only the type $ known. — nigricellulata form, nov., another nigricellu- 
unique $, probably represents an intermediate race between velata and vespertina ; nearest the former but 
smaller (33 mm) and with the cell of the hindwing completely blackened. N. Colombia: Sabanilla, west of 
the town, below 150 feet (G. B. Longstaff, see his “Butterfly Hunting”, p. 259, Flavinia). Type in the British 
Museum. 
25. Genus: Formiaiiii Druce. 
Face prominent. Palpus moderate. Antenna of $ bipectinate. Hindtibia of with a long hair-pencil, 
spurs wanting; tarsus short. Forewing of $ with a large, deep, angular terminal excision; cell about %; 
areole simple. $ unknown. Type and sole species: maenades Druce. 
F. maenades Druce (= meander W.F. Kirby) (17 a). Conspicuous by its large size and erratic shape maenades. 
but with the colour-scheme and pattern of the allied genera. Bolivia (type) and Peru. 
26. Genus: Oncopus H.-Sch. 
Face smooth. Palpus rather short. Antenna of A lamellate, with fascicles of cilia. Abdomen of long 
and pointed, of $ moderate, thickened at the end. Hindtibia of <$ much thickened, with hair-pencil and 1 ter¬ 
minal spur; of $ with 3 spurs. Cells long; areole of forewing simple; 2nd subcostal of hindwing shortly stalked. 
Probably a mere colour-section of Myrice ; only two species known, or possibly only one; in any case not, as 
Herrich-Schaeffer suggested, sexes. 
E. citrosa Hbn. ( = aurata Schaus, M. S.) (16 i). The pale central patches large, the veins (except sub- citrosa. 
costal and median of forewing) not darkened. Rio de Janeiro and Sao Paulo; the original indication of “Java” 
of course erroneous. 
E. transpecta FLbn. (= transepta H.-Sch.) (16 i). Generally somewhat paler yellow, but best distin- franspeda. 
guished by the smaller clear patches and the strong dark vein-dashes of the distal area. Distribution as in 
citrosa, also a short series labelled Popayan, doubtfully correct; I cannot elucidate the “St. Thomas” given 
by Hubner. — ab. (?) hapala nov., possibly representing a third species, certainly a third form, is a small $ hapala. 
from Rio Janeiro (ex coll. Oberthur), more unicolorous yellow, with none of the veins outstandingly darkened, 
the clear central patches still further reduced in size, not sharply outlined. 
27. Genus: Myrice Walk. 
General characters as given under Oncopus. The $ hindtibia (at least in a dissected and carefully ex¬ 
amined inaequalis , which Walker constituted type of yet another genus, Asiona) with two short spurs; but 
as I have found, besides the one spur, also a small button-like process in Oncopus, even this distinction does 
not amount to much; in the $ the proximal spur is vestigial or entirely wanting. The yellow colouring is 
replaced by grey, except in part on head and body. Few species and never common, but distributed from 
Costa Rica to Bolivia and Mat to Grosso. 
M. nitida Warr. (16 i) is very distinct from the following forms in the presence of the pale central spots, nitida. 
Costa Rica and probably Panama. 
M. transiens Walk., the type of the genus, is less unicolorous than the two following, the forewing transiens. 
broader in proportion to its length than in inaequalis, a white spot present on the inner margin of the fore¬ 
wing. Described from Venezuela, known also from Trinidad, Taboga I. and the Amazon. 
M. steinbachi Prout (16 i). Wings shaped nearly as in transiens , but uniformly grey as in inaequalis, steinbachi. 
the veins scarcely darkened. Hindtibia shorter than in inaequalis, one of the spurs reduced to a knob (a fur¬ 
ther link with Oncopus). Antennal cilia less long than in inaequalis. Prov. del Sara, E. Bolivia : Santa Cruz, 
2 in the British Museum. 
