Pyralidfe of the Subfamily Pyraustinne. 273 



(33 a) Margaronia semirufalis, sp. n. 



S ■ Head, thorax, and abdomen rufous, the last with silvery 

 white segmental lines on three terminal segments, the anal tuft 

 with some black-brown at base ; antenme with dark rings ; palpi 

 dark brown, yellowish rufous at base and extremity ; pectus, legs, 

 and ventral surface of abdomen white tinged with rufous, the fore 

 femora dark above, the fore tibise with dark band at extremity, the 

 tarsi whiter. Fore wing rufous to the postmedial line, the terminal 

 area red-brown with a cupreous gloss, the costal area rufous beyond 

 the postmedial line ; antemedial line red-brown, slightly waved ; a 

 rufous discoidal bar defined at sides by red-brown ; a diffused 

 oblique dark brown postmedial line, slightly excurved beyond lower 

 angle of cell; cilia with some whitish at tips. Hind wing rufous, 

 the terminal area red-brown with a cupreous gloss, narrowing to 

 tornus ; a faint brown postmedial line, slightly excurved beyond 

 lower angle of cell ; cilia with fine whitish line at base and some 

 whitish at tips. 



Hab. Peru, El Porvenir, 2 cf type. Exp. 38 mm. 



(33 b) Margaronia monothyralis, sp. n. 



S . Head, thorax, and abdomen brown glossed with silvery grey, 

 the last with the anal segment white with dorsal black spot at 

 extremity, the anal tuft formed by rufous scales white at base and 

 dark at extremity ; palpi white at base ; pectus and ventral surface 

 of abdomen silvery white, the legs white tinged with brown. 

 Fore wing glossy reddish brown tinged with grey, the costal edge 

 white except towards base ; a blackish discoidal striga with a reni- 

 form semilwaline yellowish white spot beyond it ; cilia with a fine 

 white line at base. Hind Aving pale glossy reddish brown tinged 

 with grey ; cilia with a white line at base and whitish tips. 



Hab. Colombia, Sierra del Libane (H. H. Smith), 1 <$ type. 

 "Exp. 34 mm. 



(37 a) Margaronia punctilinealis, sp. n. 



6 • Head, thorax, and abdomen glossy reddish brown tinged 

 with grey, the anal tuft white tinged with rufous and with dark 

 tips to the scales ; sides of frons and palpi dark brown, the latter 

 white at base; pectus, femora, and ventral surface of abdomen 

 silvery white, the tibiae and tarsi brown. Fore wing reddish 

 brown with a cupreous gloss ; a curved punctiform white post- 

 medial line from vein 7 to 2, then a faint oblique whitish line ; 

 cilia with a fine white line at base. Hind wing reddish brown with 

 a cupreous gloss ; a slightly curved rather punctiform white post- 

 medial line from vein 6 to inner margin ; cilia with a fine white 

 line at base. 



Hab. Colombia, Choko, Juntas de E. Tamana and R. San Juan 

 {Palmer), 1 6 type. Exp. 28 mm. 



