THECLA. 15 



b. Interocular space covered with scales mingled with hairs. (Species 9-209.) 

 d. Anal angle of secondaries divided by a shallow cleft. (Species 9-29.) 

 e". A fold on the secondaries near the median nervure beneath. (Species 9-15.) 



d". Third joint of the palpus longer in the female than in the male, no alar stigma. 



(Species 9-13.) 



T. maestas section; primaries strongly falcate. (Species 9, 10.) 



9. Thecla damo. (Tab. XLIX. figg. l, 2 <j , 3 $ .) 



Thecla damo, Druce, Cist. Ent. i. p. 362. 



3 alis argenteo-viridi-cseruleis ; anticis costa (prseter basin) limbo marginali et ciliis nigricantibus ; posticis 

 maculis duabus ad angulum analem nigris, lobulo anali albo nigro lanulato : subtus albidis rosaceo tinctis, 

 maculis quinque costalibus nigris, albo circumcinctis, altera ad cellulae finem et tribus aut quatuor ultra 

 earn discalibus ; posticis ad angulum analem albo dense atomatis, maculis cellulam circumpositis albo 

 circumcinctis, altera ad cellulse finem, lineis duabus submarginalibus nigris albo marginatis, interiore ad 

 marginem internum lunulata, macula nigra submarginali inter ramos medianos, altera ad angulum analem 

 inter eas macula fusca albo atomata. 



2 mari similis, sed alarum marginibus extends et costa anticarum late nigricante fuscis. 



Hab. Mexico, Presidio (Forrer), Cordova (Rumeli), Valladolid in Yucatan (Gaumer); 

 Guatemala, Polochic valley, Pacific coast, savana of Poctum (F. D. Gr. & 0. #.), Purula, 

 Tocoy, San Geronimo, Tucuru (Champion); Nicaragua, Chontales (Belt, Jansori) ; 

 Panama, David, Volcan de Chiriqui, Bugaba (Champion), Calobre (Arce), Lion Hill 

 (M'Leannan). — Colombia ; Westeen Ecuadoe. 



A^striking feature in this species is the great diversity in the shape of the apex of 

 the primaries, which in some specimens is produced so as to form a blunt point, the 

 outer margin of the wings being deeply concave, in others the margin is nearly straight ; 

 the amount of black on the costa also varies, this portion of the wing in some examples 

 being almost wholly blue ; there is also great divergence in size, some specimens being 

 half as large again as others. Making allowance for these individual differences, we 

 trace this species from North-western Mexico to Panama and southwards into Colombia 

 and Western Ecuador. It is by no means a scarce species, but is difficult to catch, 

 as it flies high, settling on the foliage on the borders of the forest. 



T. damo is very closely allied to T. marsyas, but, besides being of a paler and more 

 silvery blue, the apex of the primaries is not black as in that species. 



The figures represent a male from Calobre and a female from David, both in the 

 State of Panama. 



10. Thecla marsyas. 



Papilio marsyas, Linn. Mus. Ulr. p. 315. 



(Enomaus marsyas, Hiibn. Verz. bek. Schmett. p. 76. 



T. damoni similis, sed alis multo magis cyaneis, costa et apice usque ad medium marginis externi nigricantibus. 



Hab. Panama, Chiriqui (Bible). — South America to Guiana and Southern Brazil. 



