44 RHOPALOCERA. 
6. Secondaries of male with upper radial wholly absent. 
4. Pteronymia cotytto. 
Heliconia cotytto, Guér. Icon. Régne An. Ins. texte, p. 471°. 
Ithomia cotytto, Hew. Ex. Butt., Ith. t. xiii. f. 76°. 
Alis hyalinis, venis nigris divisis, anticis plaga subquadrata apud cellule finem, apice late et marginibus fusco- 
nigris, costa ad basin ferruginea, vitta extra cellulam obliqua a costa ad medium marginis externi tracta 
alba: subtus sicut supra, sed colore fusco pagine superioris ferrugineo tincto. 
Hab. Mexicot, Oaxaca (Fenochio), Cordova (Riimeli); Bririst Honpuras, Corosal 
(Rowe), Cockscomb Mountains (Blancaneau); Guatemaa, Motagua valley (fF. D. G. & 
O.8.), Polochic valley, Chisoy valley, San Gerénimo, and Choctum (Hague) ; Panama, 
Calobre (Arcé), Lion Hill (Jf‘Leannan).—VENEZUELA 2. 
This common Central-American species was first described from Mexican specimens 
by Guérin-Méneville!; and it was subsequently figured by Hewitson from a Vene- 
zuelan insect. Though we have traced the range of P. cotytto to Panama, we have 
never seen any examples from beyond the limits of Central America. Within this 
border it seems to be found nearly universally with the exception of Costa Rica, where 
P. parva seems to take its place. From this latter species it is readily distinguishable 
by the black of the apex cutting straight across the wing instead of following the curve 
of the margin. 
Our description is taken from a Guatemalan example captured in the valley of the 
Rio Polochic. 
5. Pteronymia parva. ({thomia parva, Tab. V. fig. 2.) 
Lthomia parva, Salv. Ann. & Mag. Nat. Hist. ser. 4, iv. p. 168°. 
Pteronymia parva, Butl. & Druce, P. Z. 8. 1874, p. 3327. 
P. cotyttoni similis, sed minor, anticarum apicibus magis hyalinis margine nigro angustiore: subtus apicibus 
atomis albis, anticarum tribus, posticarum una, ornatis. 
Hab. Costa Rica (Carmiol!, Van Patten?). 
This common Costa-Rica species seems to take the place of its near ally P. cotytto 
in that country, as we have seen many of the former, but none of the latter, from 
there. The difference between the two is slight, but, so far as we are aware, constant. 
Our figure and description are taken from the typical specimens. 
6. Pteronymia artena, 
Ithomia artena, Hew. Ex. Butt., Ith. t. xiii. f. 481. 
P, simplici similis, sed alarum marginibus latioribus, macula apud cellule finem latiore, maculaque alba extra 
eam majore distinguenda: subtus alarum apicibus obsolete albo punctatis. 
