244 Mr. H. W. Bates on (he Amazonian Papilionida\ 



terminates squarely before reaching the hind angle. Beneath it 

 differs from T. albida in having a broad yellow margin to the fore 

 wings, and in the hind wings being yellowish, with a black spot at 

 the end of the cell, and a series of dusky marks across the wing 

 behind the cell. It varies in size from 1" to 1" 5'", and is closely 

 allied to T. Agave of Cramer. 

 Para, in open grassy places. 



14. T. Tapeina, n. s. 



Expans. 1". Wings rounded. Above : fore wing white ; a somewhat 

 narrow outer margin, terminating obtusely much before reaching the hind 

 angle, black ; hind wing spotless white. Beneath : fore wing with the disk 

 white, the apical and outer margin yellow, and the base sulphur-yellow ; 

 hind wing uniform ochreous-yellow, spotless. 



Para. It is distinguished from all the other species of the genus 

 known to me by the peculiar uniform ochreous-yellow colour of the 

 under-surface of the hind wings. 



15. T. Lirina, n. s. 



Expans. 1". Wings slender, rounded. Above : fore wing somewhat 

 elongate, subtriangular, obtusely pointed, white, the apex alone with a 

 somewhat narrow black border; hind wing rounded, white, spotless. 

 Beneath : all wings white, their bases tinged sulphur-yellow. Antennoe 

 short, brown, ringed with white. 



Para. 



10. T. Leucoma, n. s. 



Expans. 1". Fore wing elongate, apex obtuse, outer margin strongly 

 bowed outwards ; above white, with an outer border of variable breadth 

 black. Hind wing with the costa at the base strongly dilated ; above and 

 beneath white, the posterior border sometimes narrowly edged with dusky. 



This species very much resembles T. Brephos in shape ; it is found 

 in company with it on the Upper Amazons. 



17. T. Brephos, ffiibn. 

 Mancipium Brephos, Hiibn. Samml. Ex. Schmett. 

 Terias Bnphos, Boisd. Sp. Gem 684. 53. 



Some examples have the costa of the hind wing dilated at the 

 base, others not ; this may therefore be a sexual character. The 

 wings are entirely spotless. The neuration of the fore wing in this 

 and the preceding species does not differ from that of the larger 

 species of the genus, although T. Efoina, a similar dwarf species 

 inhabiting b.E. Brazil, differs considerably in this respect. In the 



