TEIRACHOPODA.— OEGANOPODA. 147 



ACIDALTINJL. 

 TRIRACHOPOPA, ^. ii. 



Male. Autemue bipectinated. Palpi long, the tliinl joint ponxct. Iliiul tibia with one 

 median and two distal spurs. Fore wing with the five subcostals stalked together, the fifth 

 arising nearest the end of the cell. 



Type T. (Anisodes) siibroseata, Wlk. 



In Perixera, Meyr., the first snbcostal arises separately and then anastomoses with the 

 others, and the hind tibia is niucli shortened and gives rise to a tul't of hair witli three long 

 curved spines lying over it. 



In the speeies arenosaria, INIoore, and pauper, Butl., wliich will form a seetion of 

 Perixera, with which the venation agrees, the males have the tibia of normal lengtli, but 

 bearing only the terminal pair of spurs. 



Anisodes, Guen., type urcearia, includes some South-American species with a different 

 arrangement of the subcostal venation of the fore winsr. 



^&' 



Trirachopoda ignorata, Wlk. (Plate CLXIX. fig. 2.) 



Anisodes iguorata, Wll: Cat. xxvi. p. 1584. 



Expanse Ij inch. 



Female. Uniform yellowish rcd-browu, the imderside paler; frons ferruginous. 



Trirachopoda anulifera. (Plate CLXIX. fig. 15.) 



Expanse I^tj inch. 



Female. Fore wing ochreous, irrorated with dull red scales ; two submarginal series of 

 purplish spots; a marginal scries of specks. Hind wing similar to the fore wing, except in 

 having a conspicuous white dark-outlined cell-spot. Underside tinged with pink. 



On one fore wing there is a black spot at the upper corner of the cell. 



OEGANOPODA, g. n. 



Male. Antennae fasciculated. Palpi long, the third joint porrect. Hind leg much 

 aborted and modified into a sensory organ ; a tuft of long hairs reaching to the end of the 

 tarsus springs from the base of the tibia, the distal portion of which is much modified in 

 shape and has only the terminal pair of spurs, the inner spur having the form of a hollow 

 vesicle pigmented black inside, with an aperture near the origin from the tibia; the outer 

 spur normal ; the first two joints of the tarsus are also much modified, being bent and 

 produced outwards into a thin curved corneous wing, forming a shield lying over and 

 protecting the modified spur ; the three terminal joints of the tarsus and ungues very 



U2 



