62 MAEGARODID.E. 



Erilusa dioptoides. (Plate XX. fig. 2.) 

 Erilusa dioptoides, Walker, Cat. L<p. Net. Suppl. iv. p. 1377 (1S65). 



Wings entirely shot with lilacine : primaries bronze-brown ; two spots in the cell, a streak 

 below it, a spot at base of first median interspace, and a subapical band hyaline : secon- 

 daries hyaline ; veins and an irregular narrow outer border, bronze-brown. Body greyish 

 brown above, whity blown below. Expanse of wings 1 inch 10 lines. 



Para (Grahame). 



Erilusa cyanea. (Plate XX. fig. 3.) 

 Erilusa cyanea. Walker, Cat. Lep. Bet. Suppl. iv. p. 1370 (18G5). 



Primaries dark brown, feebly shot with bluish ; a whitish streak at the base and a broad 

 postmedian subhyaline white spot : secondaries hyaline white, shot with bluish lilac ; veins 

 and a broad outer border dark brown. Body greyish brown, shot with lilacine blue; frons 

 testaceous ; body below testaceous ; pectus in front and palpi golden yellow. Expanse of 

 wings 1 inch 6 lines. 

 Ega (Bates). 



Erilusa croceiceps. (Plate XX. fig. 4.) 

 Erilusa croceiceps, Walker, Cat. Lip. llct. Suppl. iv. p. l:'.7-"> ( 1S(>.">). 



"Wings pearly hyaline; the veins and a broad outer border dark brown: primaries with 

 the costal area, base, and inner margin brown, shot with blue : secondaries with the costa and 

 abdominal area pale brown. Body brown, bluish in front, with the head, anus, legs, and 

 entire ventral surface bright ochre-yellow; tibia: of front legs with a black terminal spot. 

 Expanse of wings 1 inch G lines. 



Ega (Bates). 



The preceding species of Erilusa are figured to show their resemblance to the Zygsenidse. 

 Mr. Walker says, "This group has much resemblance, and perhaps much affinity, to the Diop- 

 tidse and to the Lithosiidae ; " but this idea arose from the fact that Mr. Walker had placed 

 several genera of Pyralites in those families, amongst which was the following. 



EROCHA, Walker. 

 Erocha discreta. (Plate XX. fig. 5.) 

 Dioptis (Erocha) discreta, Walker, Cat. Lep. Het. ii. p. 319. n. 1 (1854). 



Wings dark brown : primaries with a longitudinal black-edged pale brown central streak, 

 ti i ininating in a large rounded clavus, which encloses a reniform brown-speckled white spot : 

 secondaries with a large lilac-shol hyaline white pyriform patch, cut by the black median 

 nervure and its three branches. Body grey; head and thorax blackish; tegulse edged with 

 whitish; pectus white in the centre. Wings below paler than above. Expanse of wings 

 I inch 8 lines. 



Ega (Bates). 



