of Ecuador and Bolivia. 91 



yellow. Thorax bluish (yellowish in some examples), 

 with five broad black lines on either side of the central 

 carina. Legs black ; femora yellowish internally, ex- 

 cepting at the tips. Abdomen black, the basal four 

 segments bronzy ; first segment with a large yellow spot 

 on either side, second with a broad lateral line, third and 

 fourth Avitli a yellow lateral spot at the anterior end 

 (occasionally visible as a point on the fifth), followed by 

 a narrow line, not extending to the posterior margin. The 

 tenth segment with a very prominent median tubercle. 



2. Wings tinged with yelloAvish all over; no whitish 

 spot ; pterostigma pale brown ; markings of the head and 

 prothorax as in the $. Thorax black, with five broad 

 golden-yellow lines on either side. Abdomen marked as 

 in the $ , and with a large yellow spot (sometimes indis- 

 tinct) on either side of the ninth segment. 



Length of abdomen, $ 45 — 47 mm., 2 39 mm. Length 

 of posterior wing, $ 37 — 39 mm., 2 37 mm. Expanse of 

 wings, $ 81 — 85 mm., 2 83 mm. 



Hah. — Intaj, Ecuador, 3 $ and 2 2. 



This very large and distinct species appears to me to 

 combine the characters of Cora and Tlwre, differing from 

 others of the genus Cora in (apart from its large size) the 

 more shortly-petiolated wings, the position of the nodus, 

 the greater number of interposed supplementary sectors, 

 the more strongly-curved ends of the sectors, &c. ; and the 

 Avhitish spot beyond the nodus in the <? may be taken as 

 representing the milky band so common in Thore. Also, 

 it shoidd be remarked, that the wings of T. beata are not 

 much more dilated than those of C. dualis. 



Considering the existence of such species as C. dualis, 

 C. modesta, C. munda, C. terminalis, all more or less 

 approaching Thore, it might be advisable to change the 

 sequence of the subdivisions of the " Legion" Thore from 

 that of Chalcopteryx, Tliore, EutJiore, Cora, to Chal- 

 copterTjx, Euthore, Thore, Cora. 



Cora munda, n. sp. 



Nodus placed slightly nearer to the base of the wing 

 than to the origin of the pterostigma, which is brown 

 (brownish-ochreous in somewhat immature individuals), 

 short (2i mm. long) and very thick, surmounting about 

 4 cellules; 29 — 33 antecubital, and 29 — 31 postcubital 

 nervules in the anterior wings ; 2 — 3 sectors interposed 



