neio Neotropical Geometridse. 437 



San Antonio, W. Colombia, 5800 feet, December 1907 

 (M. G. Palmer) ; one $ , one ? . 



Leuciris beneciliata, sp. n. 



<$ . 24-25 mm. — Closely akin to L. fimbriaria (Stoll) = 

 imperata (Guen.), differing as follows : antennal cilia un- 

 usually long, about twice as long as in that species ; fore 

 wing with apex somewhat more acute, and with three distinct 

 series of transverse dots on the veins and submedian fold, 

 equidistant and parallel with termen, the median reaching 

 only from M to inner margin, the postmedian outcurved 

 below costa and slightly incurved at R 2 and M 8 ; hind wing 

 with two similar equidistant series, the proximal sometimes 

 incomplete. Coloration of the margins, of the head, legs, &c, 

 as in L. fimbriaria. 



Tome, Colombia, August 1907 (type), also four other 

 males, July to August 1907. 



Argyrotome tenebrosa extrema, subsp. n. 



$ . 38 mm. — Differs from typical Argyrotome tenebrosa, 

 Warr. Nov. Zool. iv. p. 460, from Bolivia and Peru, as 

 follows: coloration even somewhat darker, especially of the 

 hind wing and the marginal band ou the underside ; sub- 

 marginal metallic bands thicker, that on the fore wing not 

 preceded by distinct darker marks at R 3 and the medians, 

 that on the hind wing straighter, running from apex to 

 termen at the end of M 2 , widening posteriorly and almost 

 entirely absorbing the fourth metallic spot (that between 

 M 1 and M 2 ), which is well free in typical tenebrosa; under- 

 side with the marginal bands broader. 



Rio Bitaco, W. Colombia, 4400 feet, April 1908 (wet 

 season) ; two <$ $ . 



I have seen other examples, and believe the differences 

 will prove constant, though probably not fully specific. The 

 average size seems slightly larger, and the termen of the 

 hind w r ing is very slightly prominent between R 3 and M 1 , 

 not quite evenly rounded as in the type form. 



Opisthoxia omphale, sp. n. 



<J . 34 mm. — Face and upper side of palpus ochreous 

 brown ; palpus beneath mixed with greyish, at base white; 

 thorax light dove-colour, white in front and beneath ; 

 abdomen at base ochreous brown ; otherwise dove-colour, 

 venter paler. Fore wing red brown, the costa narrowly 



