1907.] BUTTERFLIES OF THE FAMILY LYC^NID^. 591 



Expanse If inch. 



Hab. Ega, Amazons [Bates). 



Types, Mus. Grodman. 



The additional brand on the fore wing serves to distinguish this 

 insect at once from T. genena ; it also appears to be allied to 

 T. illex Schaus, P. U.S. N. M. vol. xxiv. p. 419 (1902), from 

 Colombia. Hewitson's type is now in Mr. Godman's collection. 



Thecla caltha, sp. n. (Plate XXXIV. fig. 19.) 



Male. Upper side dark brown, the basal and discal areas thinly 

 sufiused with shining purple-blue. An oblique ovular sac-like 

 brand occupying most of the cell of the fore wing, but not dis- 

 tinctly apparent, with a longitudinal opening and enclosing large 

 whitish scales. Under side much like that of T. stagira Hew.*, 

 but the ultramedian line on the hind wing more sinuous and the 

 red anal areas more developed, especially over the lobe. The lobe 

 is very small and on its upper side contains a faint red spot. 



Female. Upper side uniform dark brown, an orange spot at 

 anal angle ; under side as in male, but paler. 



Expanse, S ^t^, $ If inch. 



Hah. Santai'em, Amazons. 



Types, Mus. Druce. 



Mr. Godman's collection also contains a specimen ( c? ) for- 

 merly in Bates's cabinet, but the locality is not specified. 



The character of the brand is unusual and the cell of the fore 

 wing is very short and narrow, and probably when these insects 

 can be properly classified a new genus will have to be created 

 for them. 



Thecla lettcophjeus. 



Bithys leitco'phmus Hlibn. Zutr. Exot. Schmett. figs. 87, 88, J . 



Thecla halala Hew. Descr. of Lycsenidse, p. 7 (1868); 111. Diur. 

 Lep. p. 175, pi. 69. figs. 508, 509, $ . 



Siderus parvinotus Kaye, Trans. Ent. Soc. 1904, p. 195. 



Mr. Grose Smith has kindly lent me Hewitson's type of 

 T. halala, which was formerl}^ in the Saunders Collection, and I 

 have no doubt that it is the female of Htibner's insect. Hewitson 

 originally described it as a male, but when figuring it later (1874) 

 described it as a female. 



I have found one other example in Mr. Godman's collection 

 from Para, which is probably the specimen referred to by Hewitson 

 as being in Bates's cabinet. 



T. leucophcmis Hlibn., male, is common, but the female appears 

 to be rare. 



Mr. Kaye has kindly lent me his type from Trinidad, which 

 does not difier in any way from Venezuelan specimens from the 



* Thecla stagira Hew. { = T. spurina Hew.) 111. Diur. Lep. p. 102, pi. 39. figs. 

 122, 123. For synonymy of T. spurina Hew., see Ann. Mag. Nat. Hist. ser. 7, 

 vol. XV. (1905) pp. 194, 195. 



Proc. Zool. Soc— 1907, No. XL. 40 



