( 535 ) 



Head, thorax, and abdomen pale areen ; palpi externally rnfous ; dorsum 

 rnfons-tinged ; forelegs dark fnscous ; tarsi spotted with fuscons. 



Expanse of wiugs : 28 ram. 



1 ? from Santo Domingo, Carabaya, S.E. Pern, 0500 ft., Uecember 1902, wet 

 season (Ockenden). 



Evidently allied to T. acidalioides (Psaliodes) Kaye, from Trinidad, but mnrh 

 larger ; the palpi are long and rouglily haired. 



Thysanoctena gen. nov. 



Forewing : costa straight, convex before apex ; hindmargin curved : inner 

 margin in ? straight, in c? convex. 



Hindwing ; of ? with rounded hindmargin and angles ; of S small, hindmargin 

 bluntly protrnding at middle, costa strongly rounded ; inner margin ample. 



Antennae of i ciliated, of ? simple ; palpi long, porrect, rough-scaled ; 

 abdomen of c? elongate, the anal sheath very long, with lateral tufts of hair 

 beneath at the base. 



Forewing of c? with an oval cavity below median vein near base, with 

 thickened edges ; from the upper edge a tuft of fine silky hairs, like spun glass, 

 reaching to inner margin ; base of wing before the cavity scaleless ; hindwing of 

 S with veins 4 and 5 beyond cell thickened and rough with hairs. 



Nenration as in Tepln-ocb/gtia ; but in forewing the cell is narrow, and 

 vein 2 rises from the outside of the cavity ; in the hindwing the cell is wide and 

 the discocellular oblique. 



Type : Thysanoctena dormita Schaus. 



Allied to Dochephora Warr. and Sekistia Warr. 



Trichoclystis gen. nov. 



A development of Tephroch/tstia, with which it agrees in neuration. It is 

 specially characterised by the presence, on the underside of the forewing of the c?, 

 of a long tuft of black hairs springing from the base of wing and reaching to three- 

 fourths of inner margin, as in the Palaearctic genus Photoscotosia. In the ? 

 the forewing is of ordinary shape and size ; in the S both the costa and inner 

 margin are somewhat convex, the apex is more acute, and the hindmargin curves 

 into the inner margin w-ithout forming a defined anal angle. The hindwing also 

 is broader and rounder, the costa being arched. The abdomen of i beneath bears 

 along the middle segments a sort of double keel roughened with hairs. The 

 antennae of c? are thickened, roughened above, and distinctly ciliated beneath. 

 Palpi lengthily porrect, decumbent, heavily scaled, the terminal segment hidden ; 

 face below with a frontal tuft of hairs. 



Type : Trichoclystis peregrina spec. nov. 



93. Trichoclystis peregrina spec. nov. 



Forewing : flesh-coloured ochreous, but this ground-colour, when the insect 

 is fresh, nearly hidden by olive-fuscous suffusion ; the bands of the central fascia 

 and the marginal area deeper in tint, the narrower bands preceding and following 

 it, the submarginal waved line, an oblique ajncal streak, and the central area of 

 the fascia, especially this last, remaining slightly paler ; in the pale middle space 



