628 MR. H. H. DRUCE ON NEOTROPICAL [Juue 18, 



inhabiting the Greater Antilles are the tailed forms {T. ev,ry- 

 Uilus), and those from the Lesser Antilles are the tailless form 

 [T. hubastus). 



In Peru it appears to be replaced by the closely allied 

 T. sapota Hew., also tailless. 



Thecla eurytulus. 



Tmolus eurytuhis Hiibn. Samml. Exot. Schmett. vol. ii. pi. 90 

 (1816-1841). 



Thecla cyhira Hew. 111. Diur. Lep., Lye. p. 161, pi. 73. figs. 435, 

 436 (1874). 



Hah. Southern States of N. America. Mexico, Guatemala, Costa 

 Rica, Panama, Haiti, Cuba, Jamaica, Bahamas. 



This species has a distinct tail arising from the lower median 

 nervule on the hind wing. 



It extends southwards to Costa Rica, but we have no record of 

 it from Colombia ; and from Venezuela and Guiana, all through 

 the Amazon region and Brazil to Paraguay, it is replaced by a 

 tailless form, T. huhastus Cr. 



American entomologists use the name columella Fab. foi- this 

 species, but the Fabriciaii type being lost, and the description 

 quite inadequate, I prefer to use Hiibner's name. Further 

 synonyms will be found in Lists of N'orth American Butterflies. 



On examining Hewitson's tyj^e of T. cyhira I can find no 

 points of distinction. 



In a large series before me I find that the tails are least 

 developed in specimens from Texas, and longest in those from 

 the Bahamas. 



This insect was taken by Grote as the type of his genus 

 Callicista, and in Scudder's Butt. East. United States & Canada, 

 p. 1819, the possession of the tail is given as a generic 

 character. 



Thecla argona. 



Thecla argona JLew. 111. Diur. Lep., Lye. p. 162, pi. 63. figs. 441, 

 442 (1874). 



Thecla rana Schaus, P. U.S. Nat. Mus. vol. xxiv. p. 414 (1902). 



Hah. Uruguay {Heiv.) ; Corrientes (Perrens) ; Cordova and 

 Buenos Ayres, Argentine Rep. {White <-/• Reeve) (Mus. Godman & 

 Druce) ; Paraguay {Mus. Druce) ; Rio Grande and Castro, Parana, 

 Brazil {Mus. Druce). 



Mr. Schaus has placed a specimen of T. rana in the British 

 Museum, and we have a series from the same locality collected by 

 Mr. E. D. Jones, but I can find no points which, in my opinion, 

 make it worthy of distinction. 



The dark spot at the end of the cell of the f oi-e wing, described 

 by Hewitson, often becomes more distinct in worn specimens, and 

 in some that are quite fresh is scarcely apparent. The orange 

 abdomen is also not a constant character, and in our series is to 

 be found of various shades from grey to yellow. 



