FOCILLA. 183 



from the costa to the upper part of the second line are bluish- 

 grey. The sub-terminal line is yellowish, edged within by a 

 black line, and a row of black dots. The hind-wings are 

 lighter brown, with two slightly curved brown lines in the 

 centre, the pale marginal area being bounded by a zig-zag 

 yellowish line. There is an angular tooth on the hind margin 

 of all the wings, and the sub-terminal line is similarly angulated 

 outwards; on the hind-wings this angle contains a brown 

 spot. 



GENUS FOCILLA. 



Focilla, Guenee, Spec. Gen. Lpid. Noct. iii. p. 333 (1852) ; 



Walker, List Lepid. Ins. Brit. Mus. xv. p. 1528 (1858). 

 This American genus has longer and more pointed fore- 

 wings than Zethes (and thus approaches the Amphigoniida, 

 which have long and rather pointed fore-wings, with a strong 

 projection on the hind margin below the tip), and a strong 

 angular tooth or short tail in the middle of the hind margin on 

 the hind-wings. 



FOCILLA PLUSIOIDES. 



(Plate CXLV., Fig. I.) 



Focilla plusioides, Walker, List Lepid. Ins. Brit. Mus. xv. 



p. 1532, no. 7 (1858). 



This species was taken at Santarem, on the Amazons, by the 

 late H. W. Bates. 



"Male. Ferruginous, cinereous beneath. Frontal tuft 

 bordered with white on each side. Pectus whitish. Abdomen 

 cinereous-brown. Wings with a glaucous bloom ; transverse 

 lines black and ferruginous, zig-zag, irregular, partly interrupted; 

 sub-marginal points black. Fore-wings with the basal and 

 interior lines broader than the others, and partly with whitish 

 borders, a whitish costal sub-apical patch accompanied by 



