242 Mr. L. B. Prout on 



finely dusted with grey. Fore wing with costal edge rufous; 

 lines fine, of mixed brown and black scales, the black pre- 

 dominating in the subrnarginal ; inner line oblique inwards, 

 faintly curved below middle and angled on SC; outer sinuous, 

 incurved on both folds, followed by a band of grey scales ; a 

 subrnarginal line zigzag, strongly dentate-lunulate, the teeth 

 in the two folds nearly reaching the grey band ; terminal 

 area beyond densely grey-dusted ; terminal line very slender ; 

 fringe concolorous; cell-mark linear, blackish. Hind wing 

 with cell-mark oval, whitish grey with black edges ; median 

 line brownish, less regularly waved, with a fine grey line 

 beyond it; a subrnarginal line as in fore wing, but with 

 the tooth on SC 2 strongly produced basewards. 



Sapucay, Paraguay, 14 July, 1903 (IV. Foster) ; one S • 

 Belongs presumably to the Cnemodes section of the genus, 

 the antennal pectinations being as in indignaria, Guen. The 

 hiud-tibial scent-organs are much less developed, wanting 

 the felt-like and red-coloured masses which in that species 

 replace tibia and tarsus, and consisting merely of a single 

 long brush reaching about to the end of the tarsus, which is 

 short, but not aborted ; on the other hand, the middle leg is 

 furnished with a felt-like lappet and short hair-tuft at the 

 femoro-tibial joint, and with dense masses of long hair on 

 the tibia. The only other species known to me which 

 presents this structure is Semeeopus vacuuta (Warr.) *, also 

 from Sapucay ; it is not impossible that anfractata may prove 

 an extraordinary aberration of that species. 



Hamalia flavida, sp. n. 



£ . 24 mm. — Head, thorax, and abdomen concolorous with 

 wings; palpus externally aud at tip reddish ; venter and legs 

 yellow, fore leg tinged with purple. Fore wing dull yellow 

 sprinkled with red scales ; the lines purplish brown ; ante- 

 median from one-fifth costa, vertical below an angle on SC ; 

 median thick, slightly outbent and touching the cell-mark 

 externally, bent on M 2 and thence more oblique to before 

 middle of inner margin ; postmedian oblique outwards to 

 termen at R 3 , thence forming terminal lunules to anal angle ; 

 a broad diffuse oblique streak from base of costa to anal 

 angle ; marginal line purple ; fringe dull yellow chequered 

 with purplish ; cell-mark of slightly raised scales, white, 



* Cnemodes viridiplaga ab. vacuafa, Warr. Nov. Zool. xiv. p. 216 ; I 

 have not been able to examine Walker's viridiplaga since my attention 

 was directed to the structural peculiarities. 



