216 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



medial line; a subterminal line deeply dentate below apex, inbent below 

 vein 5; termen narrowly dark grayish, expanding between veins 4 and 5, 

 and from vein 2 to tornus; terminal black spots. Hind wings more heavily 

 and darker shaded; the base and costa to postmedial narrowly whitish; 

 the antemedial shade with a small white spot, and an irregular white line, 

 medial line wavy, distinct, followed by a fainter line; the postmedial dis- 

 tinct, geminate, approximating medial line between veins 5 and 6; space 

 beyond more uniformly brown; a distinct outer and subterminal line, 

 the space between them shaded with white; terminal line interrupted. 

 Wings below buff, shaded with brown. Fore wings: costa whitish ; an 

 orbicular white point; medial line fine, black, wavy, angled at discocellular; 

 the subterminal angled line inwardly shaded with velvety black-brown 

 between veins 8 and 5, followed by a similar shade at tornus. Hind wings : 

 the inner margin 'alone whitish; the subterminal shade heavily black 

 brown; medial and postmedial lines finely wavy. 

 Expanse, 29 mm. 



Habitat: Cayenne, French Guiana. 

 Tyrissa abscisa, sp. n. 



Male. Palpi laterally dark brown. Frons dark brown; vertex and 

 collar brown mottled with gray, the collar edged behind with buff. Thorax, 

 abdomen, and wings yellowish buff; abdomen with narrow transverse 

 fuscous shadings. Fore wings : pale brown shadings along subcostal to 

 apex, and from inner margin obliquely towards termen; some scattered 

 brown-black irrorations form an interrupted outcurved antemedial lire, 

 and there are a few similar scales at base of costa and submedian; frcm 

 middle of inner margin a broader darker brown shade extends towards 

 termen near apex, followed by a finer brown line, inbent towards costa 

 beyond cell; a partly geminate darker brown line from inner margin before 

 tornus to termen at vein 4; the darker brown shades are partly irrorated 

 with brown-black scales; some black scales at end of cell, a marginal 

 fuscous spot between veins 6 and 7. Hind wings: a dark antemedial 

 fascia; a fine medial line followed by a small white discal spot edged with 

 black; a postmedial line of dark scales; an outer straight brown fascia 

 beyond which the outer margin is grayish brown mottled with black, and 

 crossed by some lunular subterminal whitish spots. Wings below whitish, 

 the fore wings shaded with pale yellowish brown; fuscous irrorations form- 

 ing a broken antemedial line. Fore wings: some medial and subterminal 

 irrorations on inner margin; a small round spot at end of cell, containing 

 a white point; a small terminal black spot near apex. Hind wings: a 

 black discal spot, and fine medial and postmedial lines; a broad subter- 

 minal fuscous shade irrorated with whitish. 



Expanse, 20 mm. 



Habitat: G elder si and, Surinam. 



