172 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Argidia rufa, new species. 



Male. Palpi, body, and wings above brown-red; abdomen terminally 

 fuscous brown. Wings : A darker straight postmedial line, finely edged out- 

 wardly with dull lilacine and some metallic blue scales; faint traces of a 

 darker sub terminal shade; darker streaks on discocellular. Fore wings: 

 Basal half of costa finely fuscous, with a few lilacine irrorations below it; 

 a minute darker point in cell; traces of a darker antemedial line. Thorax 

 below black; tibise partly fringed with brown; tarsi light brown; abdomen 

 below buff. Wings below fuscous brown; the apex of fore wings broadly 

 lighter brown. 



Expanse, 45 mm. 



Habitat^ St. Laurent, Maroni River. 



Argidia suprema, new species. 



Female. Palpi, frons, and legs dark red; tarsi dark gray. Vertex, collar, 

 and thorax dull lilacine gray. Abdomen darker, brownish, shaded with 

 fuscous terminally. Fore wings for two-thirds lilacine gray; a fine darker 

 antemedial line; orbicular large, round, yellowish, finely circled with brown; 

 a fine darker medial line slightly inbent from middle of cell; reniform in- 

 distinct, long and narrow, finely darker edged and crossed by a darker 

 gray shade; a postmedial whitish line from vein 3 to inner margin; outer 

 third dark olive brown, almost black beyond reniform, its inneredgeslightly 

 incurved on costa; costa at apex finely buff; some terminal whitish ir- 

 rorations; faint traces of a subterminal fuscous shade. Hind wings lila- 

 cine gray at base; a fine antemedial line; medial space broadly fuscous 

 brown mottled with lilacine sealcs; terminal space dark silky brown; traces 

 of subterminal fuscous shade; terminal lilacine irrorations except at apex. 

 Wings dark below reddish brown; a fuscous straight medial line. Fore 

 wings: A yellow spot at base; orbicular not quite round, bright yellow; 

 reniform large, constricted medially, bright yellow with t,wo small reddish 

 brown spots; tihe costal margin above it bright yellow, extending broadly 

 towards apex; outer line fine, indistinct; termen broadly shaded with fus- 

 cous gray; a subterminal whitish line towards apex; cilia at apex white. 

 Hind wings : A distinct fuscous postmedial line outwardly finely edged 

 with lilacine. 



Expanse, 44 mm. 



Habitat: St. Laurent, Maroni River. 

 Oroscopa noctif era, new species. 



Female. Palpi brown, darker mottled above, fringed below with white. 

 Head brown, collar, thorax, and base of abdomen narrowly, pale buff; a 

 velvety brown black line on collar anteriorly. Abdomen buff gray, darkly 

 irrorated and with dorsal dark spots. Fore wings pale buff; costa narrowly 

 whitish buff; a pale brown subbasal dash on costa, followed by a similar 



