36 Mr. A. G. Butler 07i the 



43. Hemiceras striolata, n. sp. 



$ Ferruginous; primaries mottled all over with little 

 depressed striatious; internal and basal areas irrorated 

 with lilac scales; three pale-edged brown lines, the first, 

 near the base, irregular, not reaching the inner margin ; 

 the second, at basal third, zigzag ; the third, from apex to 

 inner margin, straight and oblique ; two conspicuous black 

 dots near the centre of outer margin; secondaries paler, 

 with golden-glossed whitish costal area and white fringe ; 

 head and collar mahogany-red, vertex cream-coloured; 

 thorax greyish, abdomen pale ferruginous ; undersurface 

 creamy-whitish, the primaries, excepting towards inner 

 margin, tinted with rufous, fringe dark ferruginous ; secon- 

 daries, Avith the outer border slightly tinted with rufous; 

 anal half of venter and upper surface of legs slightly rufous : 

 expanse of wings 1 inch 5 lines. 



Marapata, Rio Negro, 30th December, 1874. 



Although I have retained the genera Ecregma and 

 Hemiceras provisionally in the families of Noctuites, to 

 Avhich M. Guenee referred them, I feel pi'etty sure that 

 their true affinity is to the Notodontid genera Apela, 

 Lopliopteryx and allies; the structure of the anteunse, 

 thorax, legs and mngs are purely Notodontid. 



Family GONOPTERID^. 

 TiAtrsPA, Walker. 



44. Tiauspa argyria, n. sp. 



Primaries silvery-brown, irrorated with rusty-broAvn, 

 dotted here and there Avith black ; three lunulated red- 

 brown stripes, the innermost and outermost almost zigzag 

 and slightly divergent, the central one less distinct, arched, 

 with whitish external border ; reniform linear, red-brown 

 with Avhitish margins ; a very irregular submarginal series 

 of brown-edged white litura3 ; secondaries, with the costal 

 border and apical half of fringe, wdiite ; anal angle irrorated 

 with white and dark brown and crossed by two abbreviated 

 parallel brown lines ; head, sides of thorax, and base of 

 abdomen white, crest of thorax red-brown ; abdomen ]3ale 

 bi'own ; wings below greyish-brown, the costal borders 

 and external border of primaries silvery ; internal area, 

 abdominal border of secondaries and body below sordid- 

 white : expanse of wings 1 inch 9 lines. 



Rio Jutahi, 5th February, 1875. 



Only a single example oljtained. 



