NO. U20. ^;E]y SOUTH AMEHICAN MOTHS— SCHA VS. 207 



Genus IDALUS Walker. 

 IDALUS RUBENS, new species. 



Antennte of male pee'tiiuited. Palpi crimson behind, ])uflF in front; 

 a dark point near tip. Head creamy white with crimson lines; tegulae 

 creamy white edged with crimson, and crimson annu'ar s]3ots. Thorax 

 greyisii brown; a crimson dorsal streak; patagia crimson, with a 

 brown dorsal streak, and a latei'al Avhitish streak; a silvery white spot 

 at tips. Abdomen crimson above, whitish ventrally; fore coxiv, crim- 

 son. Legs greyish spotted with brown. Primaries >'ello\vish white; 

 the veins crimson, widening on onter mai'gin; costal margin thickly 

 mottled with dark grey; crimson })asal spots on costa, below cell, and 

 below submedian; a broad dark grey antemedial shade interrupted by 

 the veins; a crimson streak on outer half of cell with irregular grey 

 spots above and below it; an outer irregular row of long dark grey 

 patches between the veins, mottled with buti' transxerse streaks near 

 the veins; the inner margin medially crimson; terminal dark grey 

 spots between the veins. Secondaries crimson; a whitish space in, 

 beyond, and above cell. The secondaries as in /. liippia Stoll. The 

 patch of androconia on fore wings is very slight and does not reach 

 yein 2. 



E.vpanse. — 30 mm. 



Ilahitat. — St. Jean, Maroni River, French Guiana. 



Type.—Q2X. No. 8565, U.S.N.M. 



IDALUS LAURENTIA, new species. 



Palpi whitish, a black line behind and across tip. Head, collar, 

 and thorax pale yellow; a blackish curved line anteriorly on patagia. 

 Abdomen ochreous above, whitish underneath. Legs yellowish, 

 spotted with black; fore coxte black, fringed with white. Primaries 

 pale yellow; the spots annular, black; an elongated spot on base of 

 costal margin; a small round spot below cell at base; an antemedial 

 row of irregular elongated spots, the one in cell surmounted by two 

 small spots; medial black streaks on costal margin; a round spot in 

 cell and a smaller one between veins 2 and 3; very small spots alcove 

 and below vein -t; a long spot above 5, and a shorter spot a))Ove 6; an 

 outer row of round spots, the spot between 5 and 6 being nearer the 

 marginal spot; marginal triangular spots; the spots on apical fourth 

 of costa very narrow; fringe just above anal angle to submedian 

 black; a V)lack streak on inner margin. Secondaries white; a yellow 

 shade on margin at vein 0. 



Expanse. — 34 mm. 



Ilalnfat. — St. Laurent, Maroni River, French Guiana. 



Allied to /. panddina Druce. 



Type.—^2X. No. 85G6, U.S.N.M. 



