( 16o ) 



head and antennae brown-grey ; vertex orange ; thorax and abdomen brown-grey 



with very slight bluish gloss. Forewing deep brown-grey with paler patch below 



cell and a white obliqne postdiscal band from subcosta to vein 3 near termen. 



Hindwing black, strongly glossed with dark blue, a median hyaline area. 



? similar, but entire head orange, and forewing yellowish grey-brown. 



Length of forewing : 22 mm. 



Bab. Aroewarwa Creek, Maroewym Valley, Surinam, April 1905 (type); La 

 Union, Canra River, March 1902 ; La Vnelta, Caura River, Jnne 1903 ; Maripa, 

 Canra River (S. M. Klages) ; St. Laurent dn Maroni, Cayenne (E. Le Moult); Rio 

 Demerara, British Guiana ; Potaro, British Guiana ; Calama, below Rio Machados, 

 Rio Madeira, August — October 1907; Allianca, below San Antonio, Rio Madeira, 

 November — December 1907 (W. Hofi'manns). 



73. Delphire infra-alba sp. nov. 



cj. Pectus, tibiae below, and underside of abdomen white ; head, antennae, 

 and thorax sooty black-brown, collar and small dots on tegulae crimson ; abdomen 



sooty black, slightly glossed with dark bine. Forewing sooty black-brown, 



intraneural spaces on basal half between subcosta and intraneural fold and a 



transverse postdiscal indistinct band semihyaline whitish. Hindwing black, a 



central broad band hyaline. 



? similar, but more sooty brown-grey in colour. 



Length of forewing : 19 mm. 



Hab. La Union, Canra River, Angnst 1901 (type); Maripa, Canra River; 

 La Vnelta, Caura River, Jnne 1903 ; Guyapa, Canra River, 24. xi. — 10. xii. 1902 ; 

 San Esteban, Venezuela, July 1909 (S. M. Klages) ; St. Lanrent du Maroni, 

 Cayenne, December 1905 (E. Le Moult). 



74. Heliura assimilis sp. nov. 



S. Allied closely to //. tetragramma. Walk. Differs from that species in its 

 white, not brick-red, pectns and underside of abdomen, in the crimson, not brick-red, 

 apical half of abdomen above, in the black-brown, not reddish butf, basal half of 

 abdomen above, and in the black, not orange-red, nervures in the forewings. 



llab. Santo Domingo, Carabaya, Pern, ().")0() ft., November 1902 (G. Ockenden) 

 (type); Goyaz Town, May 1900 (G A. Baer). 



75. Heliura distincta sp. nov. 



i. Pectus primrose yellow and rose pink ; head, thorax, and antennae olive- 

 wood brown ; basal two-thirds of abdomen black, with basal orange dot ; apical 

 third sooty grey.— Forewing bright olive-wood brown, nervures, some marks 

 on costa and a double subterminal band of hastate marks yellowish grey, an 

 ill-defined transverse antemedial band, and a postmedial well-defined one from 



costa to vein 3, i)iukish olive-white. Hindwing velvety black glossed with blue, 



a large median basal semihyaline white patch. 



Length of forewing : 19 mm. 



llab. Allianca, below San Antonio, Rio Madeira, November — December 1907 

 (W. Hotlmauns) ; ? (Felder coll.). 



