PTERONYMIA. 45 
Hab. Mexico! (Sallé), Jalapa (Deppe, Mus. Berol.). 
Hewitson’s description and figure of this species were taken from Mexican specimens, 
whence we have an example brought by Mons. Sallé. Five others from that country 
have also come under our notice, which were obtained by Deppe, and are now in the 
Berlin Museum. There is nothing in Hewitson’s description or figure to enable us to 
determine with certainty whether the name /thomia artena was applied to the present 
insect, in which the upper radial of the secondaries is wholly absent, or to P. tigranes, 
in which this nervure appears as a branch to the subcostal; but as the former alone has, 
so far as we know, been found in Mexico, and not the latter, we are probably correct 
in applying the name P. artena to the Mexican species. 
Our description is taken from a male specimen from Southern Mexico, captured by 
Mons. Sallé. 
7. Pteronymia simplex. (Jthomia simplex, Tab. III. fig. 20.) 
Ithomia simplex, Salv. Ann. & Mag. Nat. Hist. ser. 4, iv. p. 168’. 
Pteronymia simplex, Butl. & Druce, P. Z. 8. 1874, p. 3327. 
Alis hyalinis, venis nigris divisis et margine angusto rufescenti-fusco circumdatis, linea angusta (in femina 
latiore) eodem colore apud cellule finem ct macula alba extra eam ad costam fere attingente: subtus sicut 
supra, sed partibus paging superioris obscuris rufescentioribus. 
Hab. Costa Rica (Carmiol!, Van Patten ?), Irazu (Rogers) ; Panama, Chiriqui (Arcé). 
This close ally of P. artena seems restricted in its range to the mountainous parts of 
Costa Rica and the adjoining district of Chiriqui, beyond which limits we have not yet 
met with it. From P. artena it differs chiefly in the dark margin of the wings being 
narrower, and the black mark at the end of the cell being a narrow line just covering 
the discocellular nervules. The female of P. simplex almost exactly resembles the 
male of P. artena, and can only be distinguished by the sexual difference of neuration. 
In Colombia Jthomia apia, Feld., seems to take its place, an insect questionably distinct 
from P. artena. 
8. Pteronymia rufocincta. (Jthomia rufocincta, Tab. III. fig. 21.) 
Ithomia rufocincta, Salv. Ann. & Mag. Nat. Hist. ser. 4, iv. p. 167°. 
Alis hyalinis, venis rufis divisis et rufo marginatis, macula eodem coloro lineari apud cellule finem, margine 
anticarum interno stria nigra ornato: subtus sicut supra, sed coloribus rufis dilutioribus. 
Hab. Mexico, Oaxaca (Fenochio 1), Putla (Rébouch). 
A very distinct species, with the neuration of P. artena and P. simplex, the range of 
which seems restricted to Western Mexico. 
Our figure and description are taken from the type specimens from Oaxaca. 
