148 . MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xn, 



HENUCHA Geyer. 



Henucha Geybr, Sammlung exot. Schmett., Ill, ? 1837. 

 Henucha Walker, Cat. Lep. Het. Brit. Mus., VI, p. 1331, 1855. 

 Ludia Felder, Reise d. Novara, Lep., IV, 1874. 

 Ludia Maassen and Weymer, Beitrage Schmett., V, 1886. 

 Henucha Kirby, Syn. Cat. Lep. Het., I, p. 774, 1892. 

 Henucha Rothschild, Novitates Zoologicse, II, 1895. 



[Type of genus 77. grimmia Geyer.] Rothschild gives two species, 77. grimmia Geyer and 

 77. devritzi (Maas. and Weym.). [77. hansalii Felder is a Ludia, as originally described.] 



Imago. — t? and ?. Head wide in front, much as hi Ludia, but the hairs longer and forming 

 a radiating mass, concealing the short feeble palpi (which are difficult to distinguish in the 

 specimens examined). Antennae broadly bipectinated; 20 sets of pectinations, which are 

 stout and densely ciliated; tip subfiliform, consisting of 10 or 11 joints, with minute vestigial 

 branches. No maxillae visible. Thorax stout; abdomen small, conical, both as hi Ludia. 



Fore wings differing from those of Ludia in being much less falcate, though the costa is 

 but little less arched, the outer edge is entire, straight (not curved) not deeply excavated. 



Hind wings not triangular as in Ludia, but broad toward the inner angle; apex much 

 rounded, and costa full and convex, much as in Ludia. 



Venation: Vein II t arises much as in Holoccra, beyond the origin of III, (or third subcostal 

 branch), otherwise the venation is much as in Ludia, the anterior discal vein from vein. in 2 

 (fourth subcostal) a considerable distance beyond its origin. The minor differences can be 

 observed by an examination of the figures; the venation of the hind wings much as in Ludia. 



Markings : Ground color brown and ochreous ; ocellus of wings of each pair of a very unusual 

 pattern, each one containing a circle of metallic silvery scales. 



Geographical distribution. — Ethiopian realm, Cape Colony. 



SYNOPSIS OF [SUB-]GENERA. 



Fore wings very falcate, outer edge deeply excavated ; hind wings triangular Ludia. 



Fore wings scarcely falcate; hind wings broad, apex much rounded; ocellus containing a silver circle Henucha. 



HENUCHA DEWITZH (Maassen and Weymer). 



Ludia dewitzii Maassen and Weymer, Beitrage z. Schmett., Leif V, figs. 90, 91, 1885. 

 Henucha dewitzi Kirby, Syn. Cat. Lep. Het., I, p. 774, 1892. 

 Henucha dewitzi Rothschild, Novitates Zool., II, 1895. 



Imago. — Two <? and one ? . Male: Head and body ochreous; hairs at the base of the 

 antennas and on each side of the front dull pink red. Legs brown above, dull pink red beneath. 

 Thorax yellow, with a transverse brown stripe in front, and three longitudinal ones, the patagia 

 being brown. Abdominal segments ochreous mixed with brown. 



Fore wings brown mixed with olive scales; costal edge dull pink. Two very distinct pale 

 ochreous cross lines, basal line broad, sinuous, making two large scallops; the extradiscal line 

 nearly touching the ocellus, it is a little sinuous, and scalloped on the inner edge; edge of wing 

 also pale ochreous, interrupted by the veins. The ocellus is formed by an outer narrow ochreous 

 ring, within which the surface is black, inclosing a very distinct metallic silvery looking ring free 

 from scales, it is not quite circular and is sometimes open externally; the black within this 

 ring is centered with yellow. 



Hind wings pink, but brownish beyond the extradiscal line; the edge and fringe pale ochre- 

 ous. Ocellus much larger than that on the fore wings, the ochreous ring wider, with black 

 outside, the silvery ring entire. A dark patch on the inner edge inside of the extradiscal line. 



Beneath as above, but each of the four silvery rings are imperfect, open on the outer side. 

 Fore wings pink red at base and along the inner edge. Hind wings with brown and green scales, 

 but pinkish along the inner edge. The lines as above, but no basal lines on either wing. 



