NOVITATES ZOOLOGICAE XXIII. 1916." 187 



75. Isochromodes quadriplagiata sp. nov. 



? , 30 mm. Head and body concolorons with wings ; the face, vertex and 

 palpns strongly mixed with ferruginons. 



Forewing with apex moderately sharp, termen very slightly sinuate anteriorly, 

 sharply elbowed at R 3 ; white-grey with a slight tinge of bluish and with sparse 

 ferruginous irroration ; costal margin ferruginous ; cell-dot black, minute ; lines 

 ferruginous ; antemedian oblique outward from before one-fourth costa, angled in 

 cell, dentate outward on submedian fold, very slightly incurved between, reaching 

 hindmargin at about one-third ; median thicker, from three-fifths costa, inbent 

 opposite cell, oblique outward to R 3 , thence close to postmedian but rather zigzag ; 

 postmedian slightly crenulate, slightly sinuous, edged distally by a very fine 

 crennlate line of the ground-colour ; distal area mostly ferruginous, with a rather 

 thick dentate subterminal line of the ground-colour, ending at tornus, and a large 

 spot of the ground-colour between R 2 and M 1 , touching termen from behind R 3 and 

 approaching the postmedian proximally, thus crossing the subterminal ; terminal 

 line browner, not conspicuous ; fringe weakly spotted with brown opposite the veins. 



Hindwing with termen somewhat waved, slightly toothed at SC 2 and strongly 



at R 3 ; basal and most of costal area as ground-colour of forewing, the rest suffused 

 with ferruginous, a thick vague median shade from abdominal margin near the 

 postmedian, oblique inward nearly to cell-dot, then still more oblique, vanishing in 

 cell ; postmedian line and distal area as on forewing. 



Underside pale grey, with scattered blackish dots ; cell-dot black; postmedian 

 line chiefly indicated by dark vein-dots ; distal area only weakly (on hindwing very 

 weakly, narrowly, only subterminally) suffused with ferruginons brown, the pale 

 spots wanting, the forewing on the other hand with a small pale terminal patch 

 from apex to R 1 and more feebly to R 3 . 



Preto, Brazil. Type in coll. L. B. Prout. A rather larger, still brighter ¥ 

 from Rio Janeiro has for many years stood in coll. Brit. Mus. under the MS. name 

 of quadriplagiata Warr., which I have adopted. A worn ? from Espiritu Santo is 

 in coll. Thierry-Mieg. 



Very similar to some of the brightest forms of the excessively variable brumosa 

 Dogn. {Ann. Soc. Ent. Belg. xl. 138 — canisquama Warr., Nov. Zool. iv. 504 = beon 

 Druce, Biol. Centr.-Amer., Lep. Het. ii. 537, t. xcix. 7), and sharing with it a 

 peculiarity of venation which has not hitherto been pointed out — the strong 

 anastomosis of C of the hindwing with SC, whereas in normal Tsockromodes it is 

 only appressed ; distinguished by having the third joint of the palpus relatively 

 short and by the conspicuous mid-terminal patches. 



76. Anisoperas asphales sp. nov. 



c?, 34 mm. Like atropunctaria Walk. {List Lep. Lns. xxvi. 1517) but with 

 the antenna filiform (in atropunctaria strongly dentate), the colouring paler, rather 

 greyer, lines rather strong, antemedian not curved (straight from hindmargin to 

 cell-fold, here right-angled), postmedian (especially on underside) farther from 

 termen, the indistinct subterminal line apparently less deeply dentate. 



Chanchamayo, E. Peru, 1000 m., October — November 1906. Type in coll. 

 L. B. Prout. 



The antennal structure is about as in dolens Druce, which has a much more 

 sinuous postmedian line and lacks the white costal spot distally to the postmedian 



