116 HELICONIDiE. 



Anterior Legs of the male scaly. Tibia about three fourths the length of the femur. Tarsus not 

 more than one sixth the length of the tibia, subconical, obtuse. Anterior Legs of the female 

 ■with the femur rather longer than the tibia. Tarsus about half as long as the tibia ; the first 

 joint twice as long as the remainder combined, thickened towards the apex, slightly spiny ; 

 second, third, and fourth joints transverse, each with a tuft of stiff hairs at the base on each 

 side, resting on the spine at the apex of the preceding joints, the tuft least distinct on the 

 second joint ; fifth joint subquadrate, with three long setae above, before the apex, and at the 

 apex, with two membranaceous strap-shaped appendages, united at the base, resembling in 

 structure the paronychia of the other tarsi. 



Middle and Posterior Legs with the femora and tibia3 about equal, the latter slightly longer than 

 the former, very spiny, the spurs scarcely differing from the other spines. Tarsi rather shorter 

 than the tibiae, very spiny, the spines on each side arranged in a regular series ; first joint 

 elongate ; second and third nearly equal, each about one third the length of the first ; fourth 

 shorter ; fifth equal to the third. Claws much curved, grooved below. Paronychia with the 

 outer lacinia strap-shaped, obhquely truncate at the apex, longer than the claw ; the inner 

 lacinia short, subtriangular. Pulvillus jointed, hardly so long as the claw. 

 Abdomen elongate, clavate, extending considerably beyond the inner margin of the posterior wings. 



Larva and Pupa unknown. 



The remarkable structure of the anterior legs in both sexes is sufficient, without any other characters, to separate 

 this genus from both I tuna and Thyrklia, to one of which genera I had at one time considered the only species known 

 to me might be referred. Subsequent opportunities of more careful investigation having convinced me of my mistake, 

 I have thought it most advisable to give the generic characters of this genus as well as Eutresis in their proper place, 

 although the figures of the species on which they are founded must be deferred to the supplementary plates, which 

 will be given to illustrate those forms which may be discovered during the progress of the work, too late for insertion in 

 systematic order. 



The only species with which I am acquainted inhabits Brazil. 



METHONA. 



1. Meth. Themisto. 



Thyridia Them. Hiibn. Zut. f. \63, 164. (1818). 

 Brazil. B. M. 



