500 MR. A. G. BUTLER ON [Nov. 4, 



without palpi, which would readily account for its heing placed in the 

 Anthnphilida, though I fail to see any great similarity of this species 

 to Xanthoptera. H. obacerralis varies not a little in the ground- 

 colouring of its wings, the African specimens being usually (though 

 not always) more luteous towards the base than those from Ceylon. 



HeRMTNIIDjE. 



77. Hydrillodes insignis, sp. n. 



Basal three fourths of primaries black, terminated by an elbowed 

 white stripe from costa to inner margin ; a broad cream-coloured 

 belt across the basal third ; external fourth sandy-brown, with two 

 costal apical black quadrate spots, connected with the outer one of 

 which is a > -shaped marking on external border, and below this 

 again three black marginal dots ; fringe cream-coloured ; secondaries 

 leaden-grey. Head and thorax black ; metathoracic tufts and base of 

 abdomen shining whity-brown ; second to sixth abdominal segments 

 leaden-grey with whitish posterior edges ; anal tuft sordid testaceous ; 

 under surface yellowish, the upper surface markings almost obli- 

 terated. Expanse of wings 21 millim. 



Aden. 



Quite distinct in colouring from any species known to me ; it 

 somewhat resembles, both in colour and the general arrangement of 

 its markings, Heterochroma leucographa, Snellen, from Sumatra. 



Ennychiidje. 



78. Ennychia arabica, sp. n. 



Upper surface deep purplish brown, almost black ; primaries with 

 a submarginal cream-coloured stripe, slightly widening and incurved 

 towards the costa ; a dentated jet-black marginal stripe produced 

 by the confluence of a series of conical black spots ; fringes of all 

 the wings metallic leaden grey; palpi and collar below white; legs 

 below, excepting the tarsi, whitish ; wings nearly as above, excepting 

 that the black dentated marginal stripe of the primaries is replaced 

 by a slender black line, and consequently the submarginal stripe is 

 wider. Expanse of wings 15 millim. 



Aden. 



Not nearly allied to any known species. 



Asopiid^e. 



79. Desmia afflictalis, 



Desmia afflictalis, Guenee, Delt. et Pyral. p. 190, n. 125. 



Aden. 



Described from an Abyssinian example ; also found on the 

 western coast of Africa. 



80. Hymenia fascialis. 



Phal<ena-Pyralis fascialis, Cramer, Pap. Exot. iv. pi. 398. fig. O 

 (1782). 

 Aden. 

 This species seems almost cosmopolitan. I have not seen 



