420 Mr. E. Dukinfield Jones on New Species of 



Hah. Castro, Parand, Brazil. 



Closely allied to R. meisteri, Burm., but readily distin- 

 guished from it by the very narrow base of the wings and 

 the absence of basal yellow spot, 



Fam. ARCTIADAE. 

 Amaxia collaris, n. sp. 



9 . Palpi crimson-pink ; frons white, surrounded by fawn and 

 red scales ; vertex light brown ; antennae darker brown, terminal 

 third greyish white ; cheeks and pectus crimson-pink; fore femora 

 brown, striped with crimson-pink ; tegulae white, anteriorly edged 

 with crimson-pink ; thorax light brown shaded with pink ; a white 

 snot at base of patagia ; underneath ochreous white ; abdomen 

 crimson-pink, ochreous beneath. Forewings greyish brown, irror- 

 ated with crimson on outer half ; a basal white spot on costa, 

 followed by crimson ; a geminate, broken, crimson antemedial line, 

 widening out at costa, the space between the lines pale yellow 

 forming two small spots between cell and vein 1 and a large trun- 

 cate triangular spot at costa; two small medial spots between cell 

 and vein 1 ; a postmedial line from inner margin to just above vein 

 2, enclosing yellow spots ; the ante- and post-medial lines joined on 

 inner margin by yellow ; a subterminal very irregular crimson-pink 

 line from just below vein 2 to apex, the space beyond to termen 

 pale yellow ; terminal row of spots between the veins ; termen pale 

 yellow ; a large yellow patch on medial third of costa extending 

 nearly to vein 2 ; a minute dark grey spot at end of cell and two 

 beyond cell ; a few crimson scales on subcostal at end of cell ; two 

 confluent yellow subapical spots ; all the veins on the brown portion 

 of the wing and a streak at base of cell crimson-pink, Hindwings 

 rose-pink ; costa ochreous ; termen irregularly brown. 



Expanse 37 mm. 



Hah. Alto da Serra, Santos, S.E, Brazil. 



Castronia, gen. nov. 



Proboscis fully developed ; palpi upturned, not reaching vertex of 

 head ; antennae bipectinate with branches long, slightly dilated at 

 extremities and ending in a bristle ; tibiae with spurs short. Fore- 

 wings : vein 3 close to angle of cell ; veins 4 and 5 from angle, 

 separate at base ; 6 and 7 from upper angle ; 10 and 11 from cell. 

 Hindwings : vein 3 from close to angle ; 4 from angle ; 5 from 

 well above [angle ; 6 and 7 from upper angle ; 8 from middle of 

 cell. 



Type of genus, C. collaris. 



