198 HETEROCERA. 
1. Siga pyronia, sp.n. (Tab. LX. fig. 7, 2.) 
Female. Primaries pale grey, crossed beyond the middle from the costal to near the inner margin by a wide 
hyaline band, which becomes quite narrow as it reaches the inner margin, and with a square-shaped 
hyaline spot at the end of the cell, beyond which on the outer side is an oval yellow spot, the costal 
margin and fringe whitish ; secondaries pale grey, crossed about the middle from the costal to near the 
inner margin by a waved, rather wide, hyaline band, which is edged on the outer side with a zigzag 
yellow band, the fringe grey, on the inner margin white; the underside of both wings silky white, 
showing the hyaline bands : head, thorax, and abdomen greenish-grey above, white beneath, the antennze 
yellowish-brown. Expanse 23 inches. 
Hab. Panama, Chiriqui (Trétsch, in mus. Staudinger). 
A very distinct species. 
MACALLA. 
Macalla, Walker, Cat. xvi. p. 155 (1858). 
Aradrapha, Walker, Cat. XXXlv. p. 1257 (1865). 
This genus has been twice described by Walker, and from the same species—first 
under the Deltoide and later under the Pyralide ; the types are from Honduras. A 
second species is now added from the State of Panama. Walker's names are not 
mentioned by Mons. Ragonot. 
1. Macalla thyrsisalis. 
Macalla thyrsisalis, Walk. Cat. xvi. p. 156". 
Aradrapha mixtalis, Walk. Cat. xxxiv. p. 1257 *, 
Hab. Honpuras (Miller 1, Dyson”). 
The only specimens I have seen of this species are the types in the National 
Collection. 
2. Macalla dapha, sp.n. (Tab. LX. figg. 3, 3 a.) 
Primaries fawn-colour, with an indistinct waved submarginal line extending from the costal to the inner 
margin, and a small black dot at the end of the cell; secondaries considerably paler than the primaries, 
semihyaline; the underside somewhat redder than above: head, antennie, palpi, thorax, abdomen, and 
legs fawn-colour. Expanse 14 inch. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
Two specimens, both of which appear to be males. 
AURADISA. 
Auradisa, Walker, Cat. xxxiv. p. 1504 (1865). 
A genus containing a single species from Honduras ; it is not noticed by Mons. 
Ragonot. 
1. Auradisa gelidalis. 
Auradisa gelidalis, Walk. Cat. xxxiv. p. 1505". 
Myelois subalbella, Walk. Cat. xxxv. p. 1714”. 
Hab. Honvuras (Miller }?). 
‘The types of these insects are in the British Muscum. 
