144 EHOPALOCEEA. 



amongst them, and for these reasons we believe that the southern and northern forms 

 are specifically distinct, though their ranges overlap in Bolivia. 



P. rurina in our country has a wide range extending from the sea-level to an elevation of 

 5000 feet and upwards in the mountains. It is one of the species which helps to form 

 the dense masses of butterflies which congregate round pools and wet places and on 

 river banks. 



2. Phoebis argante. 



Papilio argante, Fabr. Syst. Ent. p. 470 \ 



Callidryas argante, Bates, Journ. Ent. i. p. 238 2 ; Reak. Proc. Ent. Soc. Phil. ii. p. 353 3 ; Butl. Lep. 



Ex. p. 119^.44. ff. 1-4 \ 

 Mancipium fugax argante, Hiibn. Saml. ex. Schmett. i. t. 145. ff. 1, 2 s . 

 Papilio cipris, Cram. Pap. Ex. t. 99. ff. E, F 8 . 

 Phoebis cypris, Hiibn. Samml. ex. Schmett. ii. t. 131 \ 

 Papilio hersilia, Cram. Pap. Ex. t. 173. ff. C, D 8 . 

 Callidryas hersilia, Butl. Lep. Ex. p. 106, t. 39. ff. 7-10 9 . 



Callidryas agarithe, Luc. in R. de la Sagra's Hist. Fis. y Pol. Cuba, Ins. t. 15. ff. 4-4 a, $ 10 . 

 Callidryas minuscula, Butl. Lep. Ex. p. 120, t. 44. ff. 9, 10 ". 

 Alis supra aurantiis punctis nigris in margine externo : subtus flavescentioribus ferrugineo irregulariter 



irroratis, antieis linea bifracta ab apice ad marginem internum maculis duabus ad cellulae finem plus 



minusve distinctis ; posticis quoque maculis duabus ad cellulae finem notatis, interdum medialiter argenteis 



interdum evanescentibus. 

 2 a mari differt alis supra aut flavidis aut gilvis maculis in margine externo majoribus interdum confluentibus 



anticarum apice nigricante macula ad cellula) finem aliisque discalibus nigricantibus. 



Bob. North America, Florida, Texas. — Mexico, Ventanas, Presidio, Mazatlan 

 (Forrer), Dos Arroyos, Rincon, La Venta, Acaguizotla (H. H. Smith), Orizaba 

 (F. D. G.), Atoyac (H. H. Smith), Cordova (Bumeli); British Honduras, Corosal 

 (Boe) ; Guatemala, Polochic valley, Chuacus, Central valleys, Dueiias, Pacific coast 

 (F. B. G. & 0. S.), Cahabon, Chacoj, Panima, Cubulco (Champion); Honduras, San 

 Pedro (Whitely); Nicaragua, Chontales (Belt); Costa Rica (Van Patten), Rio Sucio. 

 (Bogers); Panama, Volcan de Chiriqui, Veragua (Aree), Bugaba, Tole (Champion), 

 Panama Railway (M'Leannan). — South America generally to South Brazil. 



The true P. argante of Fabricius, of which the type is in the British Museum, is, 

 no doubt, that represented by Mr. Butler under this name 4 ; the outer margin of the 

 primaries is marked with a black spot at the end of each nervule, and the spots on the 

 under surface of the secondaries at the end of the cell are evanescent and with no 

 silvery tint in the centre. Between this form and that represented by P. hersilia, in 

 which the outer margin of the primaries is uninterruptedly black, and the spots on the 

 secondaries distinctly silvery, we find every intermediate gradation in the series before 

 us; and failing other diagnostic characters it is impossible to separate P. argante from 

 P. hersilia, as Mr. Butler has endeavoured to do. 



