236 NOVIIATES ZOOLOGICAE XXIV. 1917. 



and grey ; an indistinct subbasal band black and rufous ; a double crenulate 

 antemedian band inwardly buffish, outwardly black ; a pale stigma with dark 

 grey centre, a heavy velvety black postmedian band slightly angled or rather 

 projecting at vein 3 ; beyond this an indistinct »inuate crenulate and interrupted 



line, and a black terminal hair-line. Hind«ii5gs dirty white, huffish on 



abdominal area, a brown marginal line somewhat spreading into wing. 



Length of forewing : 20 ram. Expanse : 46 mm. 



Habitat. Buenavista, East Bolivia, 750 m. = 2,438 ft., August 1906— 

 April 1907 (J. Steinbach), 2 5? ; Santo Antonio do Javary, Upper Amazons, 

 June 1907 (S. M. Klages), 6 cJcJ. (These 3S have much less conspicuous ante- 

 median bands, but are not fresh.) 



18. Dyasia stigmatica spec. nov. 



(J. Antennae orange-brown ; head, thorax, and abdomen purplish sooty 

 black-brown. 



Forewing purplish sooty brown ; basal one-third with scattered rusty striae 

 joined to velvety black ditto ; these on the outer edge of this part of wmg 

 conglomerated to form a rather ill-defined broad antemedian rufous band con- 

 taining black spots ; outer two-thirds with hardly any of these striae, an oblique 

 postmedian line of rufous spots with black centres ; a large subapical rust-red 



patch like a brand in the centre of which is a broad brown-black band. 



Hindwings dirty white ; costal and abdominal areas dirty grey ; termen greyish. 



Length of forewing : 25 mm. Expanse : 57 mm. 



Habitat. Fonte Boa, Upper Amazons, May 1906 (S. M. Klages), 1 <?. 



19. Dyasia melanoleuca spec. nov. 



(J. Antennae brown ; head purplish blackish chocolate ; thorax dirty 

 white ; abdomen brownish buffy grey ; basal segment whitish ; anal tuft buff. 



Forewing purplish sooty black-brown, paler on outer one-third ; basal one- 

 seventh obliquely pure white ; dark portion of basal two-thirds of wing crossed 

 by a lot of very indistinct crenulate lines of dots, a more distinct postmedian 

 double curved band of such spots ; costa spotted with' dark spots, two larger 



round black subapical spots obliquely placed ; a black spot above vein 2. 



Hindwing : abdominal two-thirds white, costo-terminal one-third dirty sooty 

 brown. 



Length of forewing : 15 mm. Expanse : 34 mm. 



Habitat. St. Jean de Maroni, French Guiana, 3 (JcJ. 



20. Dyasia pimctata spec nov. 



tJ. Antennae brown ; head and thorax cinnamon-brown ; abdomen yeUowLsh 

 wood-grey ; a black round spot on anal segment. 



Forewing mauve pinkish cinnamon clouded with band-like clouduigs of 

 brown and with numerous streaks and speckluigs ; a round black subbasal spot 

 in median fold, a blurred blackish broad antemedian black-brown band foDowed 

 by a somewhat curved line of different-sized black spots ; a postmedian line 



of black spots ; two large subapical black spots and one about vein 3. 



Hindwing wood-brown, basal two-thirds washed with buff ; fringe buff. 



Length of forewing : 26 mm. Expanse : 59 mm. 



Habitat. Fonte Boa, Upper Amazons, May 1906 (S. M. Klages), 1 (J. 



