216 PROC. ENT. SOC. WASH., VOL. 22, NO. 8, NOV., IQ2O 



shade from cell at vein 2; a white streak above vein 6 to near termen; short 

 postmedial whitish streaks on interspaces from vein 5 to vein 2 adjoining 

 cell, below vein 2 forming a whitish vertical shade to inner margin; a ter- 

 minal dark brown line preceded by a white line cut by veins. Hind wings 

 brownish gray, paler at base and on inner margin; a dark terminal line. 

 Fore wings below silky gray-brown; a terminal fuscous brown line. Hind 

 wings below white; a terminal fuscous brown line expanding slightly on in- 

 terspaces. 



Expanse, 26 mm. 



Habitat. Cayuga, Guatemala. 

 Type. Cat. No. 23818, U. S. N. M. 



Margaronia rioalis, new species. 



Female. Palpi fuscous brown; a short white streak in front at base; the 

 fringe with a few white tipped hairs. Head dark brown with lateral white 

 lines. Collar and thorax fuscous brown; an outer white line expanding 

 broadly on patagia. Abdomen above fuscous brown, the last three segments 

 with fine white lines behind. Abdomen below grayish brown with three 

 white lines as above. Legs fuscous gray. Fore wings fuscous brown; an 

 opalescent white spot across cell obliquely towards inner margin and tornus, 

 ending in a point; a large semioval opalescent spot postmedially from vein 

 8 to near tornus, its outer edge rounded, its inner edge almost straight, a 

 fine white line on discocellular; a whitish sub terminal line; the apex broadly 

 brown as in M. heliconalis Guenee, but the two spots do not meet behind as 

 in that species. Hind wings opalescent white; termen broadly fuscous 

 brown, narrowing on inner margin to a point above middle, on costal margin 

 narrowing to a point near base; at vein 6 the white forms a short upbent 

 subterminal line. Wings below fuscous, the opalescent portions as above. 



Expanse, 26 mm. 



Habitat. Rio de Janeiro, Brazil. 



Type, Cat. No. 23819, U. S. N. M. 



Also near M. extorris Dognin, which is the same as M. confinis 

 Druce, but the latter name, though earlier, is preoccupied by an 

 eastern species. 



Margaronia busccalis, new species. 



Male. Palpi lilacine brown, shaded with light reddish brown at base. 

 Frons white with a transverse reddish brown line. Vertex and collar lilacine 

 brown. Thorax fuscous, the patagia brownish gray. Abdomen reddish 

 brown with some white segmental lines and dark irrorations dorsally near 

 middle; lateral white tufts at base upcurved over base of abdomen. Body 

 below white; legs mostly white; base of mid tarsi brown; fore legs lilacine 

 brown with tufts of hair on tibiae and base of tarsi; terminal half of tarsi 

 white. Fore wings pale olive-brown tinged with lilacine; base dark brown 



