80 KHOPALOCEKA. 



Hab. Costa Kica, Rio Sucio, Irazu (Rogers); Panama, Chiriqui (Trotseh). 



The conspicuous white band on the underside of this species suggests an alliance 

 with T. clarina, but the blue on the upper surface of the secondaries is near the anal 

 angle and not on the costa ; it is, too, much less brilliant. A pair from Costa Rica, of 

 which we figure the female, and a single male from Chiriqui are all we have seen of 

 this insect. A species nearly allied to this is found in the mountains of British 

 Guiana *. 



25. T. calus section. 



164. Thecla calus. 



Polyommatus calus, Godt. Enc. Meth. ix. p. 640 \ 



Thecla calus, Hew. 111. Diurn. Lep. p. 188, t. 75. ff. 585, 586 2 . 



Alis fusco-nigris; anticis infra cellulam ad marginem internum, posticis prseter marginem externum 

 nitidissime cyaneis : subtus ochraceo-fuscis, linea communi discali extrorsum sordide albo Jimbata fusco- 

 mgncante ad marginem posticarum internum sinuata; auticis costa et plaga magna triangulari ad cellule 

 finem nigricanti-brunneis, posticarum lobulo anali nigro, macula juxta eum nigra albo-atomata, altera 

 submargmali inter ramos medianos nigra, margine nigro albido introrsum limbato. 



Hab. Guatemala, Polochic valley (R D. G. & 0. S.); Nicaragua, Chontales {Belt). 

 — Colombia ; Amazons valley 2 . 



The conspicuous dark triangular mark on the primaries beneath renders this species 

 easy of recognition. Godart gives America as the origin of his examples; but 

 Hewitson's specimens were from the Amazons, whence we also have obtained it both 

 from San Paolo and Para. 



26. T. demonassa section. 



165. Thecla demonassa. 



Thecla demonassa, Hew. Descr. of Thecla, p. 25 ; 111. Diurn. Lep. p. 148, t. 58. ff. 376-378 \ 



Alis anticis nigricantibus; posticis (prater angulum analem et marginem externum) nitidissime cyaneis: 

 subtus fulvis, Imea discah communi nigra extrorsum albo introrsum ferrugineo limbato, angulo posticarum 

 anah ferrugineo, lobulo nigro, macula juxta eum nigra ferrugineo atomata, macula inter ramos medianos 

 nigra ferrugineo circumdata. meunuiuj 



2 alis fuscis ; anticis ad marginem internum, posticis ad basin obscure cseruleis : subtus mari similis. 



Hab. Mexico, Cordova (Bumeli), Jalapa (W. Schaus); Guatemala, Polochic valley 

 (F. B. G. & 0. 8.). — Amazons valley 1 . 



Except that they are rather smaller, northern examples do not differ from typical 

 specimens from the Amazons valley. The species has no near allies that we are 

 acquainted with. 



* Thecla matho, sp. n. 



T - m^IIK!" Unea Mi * p08tici8 tab0 *° -**"*• ]inea s " ta ^ — 



Hab. Guiana Beit., Carimang river (WMtely). 

 Mm. nostr. 



