NOVTTATES ZOOLOGICAE XXIV. 1917. 249 



60. Malocampa bucephaloides spec. nov. 



cj. At fiist .sight this and the next species resemble the genus Phalera. 

 Antennae very large and long, heavily pectinated on basal three-fourths, bright 

 amber-brown ; head rusty chestnut ; thorax purple-chocolate, hinder half 

 densely sprinkled with white, giving it a roan colour ; abdomen cinnamon 

 rufous. 



Forewing rusty chocolate-brown ; base dark grey edged with white, a 

 broad central band 7 mm. wide of greyish mauve irrorated with black scales, 

 this band is Ul defined on the basal side, spreading far towards base below median, 

 on the distad side it is sharply defined bj- a concave transverse triple line first 

 black, then white, then rufous orange, the black portion of this line is sharply 

 angled inwards ; the outer two-fifths of the wing are rufous chocolate fading 



into greyish cloudy mauve ; fruige rufous and grey. Hindwmg cinnamon rufous 



tinged with brown, an angled rufous-cream postmedian band ; fringe rufous white. 



Length of forewing : 35 mm. Expanse : 78 mm. 



Habitat. St. Jean de Maroni, French Guiana, 1 <J. 



61. Malocampa phaleroides spec. nov. 



cJ. Verj' closely allied to the last species. Antennae brownish amber-yellow ; 

 head rusty chestnut ; thorax purple-chocolate, hinder edges and hind edge of 

 patagia with the hairs tipped with dirty white ; abdomen rusty cinnamon. 



Forewing bro^vnish cinnamon-chocolate washed with yellowish grey ; a 

 double discocellular stigma ; base of wing obliquely violet-chocolate ; a sub- 

 basal white band starting from vein 1 runs obliquely to costa and along latter 

 except outer one-third, and spreads to subcostal vein, and slightly beyond it ; 

 a postdiscal double lunate crenulate mauve and brown shadow-line, and a sub- 

 terminal line of mauve and brown spots ; fringe rusty rufous.- Hindwing 



cinnamon rufous with darker median line edged outwardly with rusty white 

 ending in a chocolate and white tornal patch ; frmge rusty rufous. 



Length of forewing : 35 mm. Expanse : 79 mm. 



Habitat. La Oroya, Rio Inambaii, Peru, 3,100 ft., September 1904 (G. 

 Ockenden), 2 3S. 



62. Rhuda opalistriga spec. nov. 



(J ?. Similar to difficilis Schaus, but smaller, and the baso-subbasal streak 

 prolonged in a band along four-fifths of vein 1, and consisting of an opalescent 

 blue band with a white central line ; above this band the brown colour runs in 

 a perfectly straight oblique band below the pale pmk fascia and ends on vein 2 

 one-sixth from termen in a round black spot. 



Length of forewing. Expanse. 



difficilis, S 31 mm., § 37 mm. . . . cJ 70 mm., ? 83 mm. 



opalistriga, <S 25 mm., $ 29 mm. . . . <? 56 mm., S 64 mm. 



Habitat. Amazons, 1 ? ; Fonte Boa, Upper Amazons, May 1906 (S. M. 

 Klages), 1 iJ type. 



