NO. 1 444. NE W SO UTir A ME RICA N MO THS—SCHA US. 8 7 



at vein 8 and white lines above and below vein 8 from this point to 

 apex; a reddish brown streak from below vein 6 to outer margin at 

 vein 7. Secondaries, pale brown; the long hairs on basal portion 

 tinged with gray; a darker ])rown postmedial shade followed hy a 

 blackish gray shade; a subterminal iridescent steel-gray shade, out- 

 wardly lunular, and crossed by a vague paler line. The wing is much 

 prolonged below vein 5. Underneath pale gray, thinlj" irrorated with 

 blackish striae; dark brown streaks on discucellulars; some marginal 

 lunular whitish shades, followed on secondaries by paired pale reddish 

 brown streaks at veins; a dark gray outer shade on primaries. 



Expanse. — Male, 152 mm. 



Ilahitat. — Omai, British Guiana. 



Named after Mr. S. A. Thomson, to whom I am indebted for this 

 fine species. 



Type.—Q^^i. No. 9453, U.S.N.M. 



ARSENURA SAMBA, new species. 



Primaries: outer margin strongly crenulate, produced at vein 6; 

 dark brown, whitish violaceus washed to terminal fourth; darker at 

 base with a different obsolete line and white hair on inner margin sub- 

 bassally; inner line straight, dark, diff'used, faintly edged with whitish 

 inwardly; a mesial line slightly curved, crossing end of cell and touch- 

 ing outer line at submedian fold; outer line from costa at outer third, 

 with a diffuse white costal blotch before and after its inception, dark, 

 at vein 4, joining the dark marginal shade and thence forming its inner 

 border, separated below b}^ a few white scales. Secondaries: outer 

 margin produced into a long tail; dark brown, a faint darker straight 

 mesial band with a few scattered, gray scales beyond; inner half of 

 wing toward base densely haired. Below dark brown, a large patch 

 of brownish white on margin at end of vein 7 and a smaller one below 

 vein 6, both irrorated with brown. 



Expanse. — 100 mm. 



Habitat. — Omai, British Guiana. 



Type.—C2it. No. 9454, U.S.N.M. 



Genus AUTOMERIS Hiibner. 

 AUTOMERIS MERIDANA, new species. 



Head and thorax pale olivaceous brown. Abdomen crimson above, 

 underneath and anal hairs buff-brown. • Primaries pale buff-brown 

 irrorate with olivaceous scales; antemedial line wav}^, ocherous; a quad- 

 rate dark gray space at end of cell, with a few black points on its 

 edge; an outer blackish line from costa near apex to inner margin be- 

 yond middle, inwardly edged with ocherous below vein 6. Secondaries: 

 the costal and outer margins buff-gray; inner margin broadly reddish; 

 otherwise deep yellow to the black outer line, which is finely wavy; 



