46 LEPIDOPTERA HETEROCERA 
point), moderately rapidly diverging, SC? about connate, R* moderately characteristic, M! stalked 
(separate in salsa). 
Early stages unknown. 
A more specialized genus than any of the preceding, apparently, in common with those which 
follow, somewhat transitional towards our fourth Group. 
Types of the genus : Xezochroma candidata, Warren (1902). 
Geographical distribution of species. — Ethiopian. 
I. X. candidaia, Warren. E. Africa. 
Xenochroma candidata, Warren, Novit. Zool. Vol. 9, p. 498 (1902). 
2. X. planimargo, nov. sp. r), Prout. Nyassaland. 
3. X. salsa (Warren) (huj. gen.?). Sierra Leone. 
Pareuchloris (2) salsa, Warren, Novit. Zool. Vol. 4, p. 43 (1897). 
23. GENUS PSEUDOTERPNA, HÜBNER 
Pseudoterpna. Hübner, Verz. bek. Schmett. p. 284 (1826?); Herrich-Scháffer, Samml. Aussereur. 
Schmett., Vol. r, p, 26 (1856). 
Gharacters. — Face smooth. Palpus in both sexes quite moderate, slightly upcurved, second 
joint hairy beneath, third joint minute, concealed. Tongue present. Antenna moderate, in gf bipectinate 
with short branches, apex simple; in Q filiform, minutely ciliated. Pectus and femora hairy. Hindtibia 
in &' somewhat dilated, with pencil of rather short hair, in both sexes with all spurs. Abdomen crested. 
Hindwing with very slight (almost negligeable) costal expansion, frenulum in gf developed, in 9 
consisting of only a few long hairs. Forewing with costa scarcely arched, apex pronounced, termen 
entire, oblique, cell nearly one-half, DC variably curved, SC! usually free, occasionally anastomosing 
with C, SC? normal, R! connate or just separate, R? above middle of DC (sometimes considerably 
above). M! separate; hindwing with costa not short, apex somewhat rounded, termen little convex, 
inner margin scarcely elongate, cell nearly one-half, DC curved, C approximated to cell to about 
one-half, then rather gradually diverging. SC? connate or just separate, R* above middle of DC 
(sometimes extreme), M! separate. c genitalia with uncus bifurcate, gnathos blunt, squared at the tip, 
with small ($ruimata) or large (coromillaria) scobinations, harpe with spined clasper, penis rounded 
at the base, zedeeagus with saw-like projection at the orifice. 
Lanva. — Moderately stout, rigid, nearly cylindrical, with slight lateral flange; head bilobed, 
the lobes produced to points anteriorly; skin-surface strongly shagreened, prothorax with two points 
anteriorly, anal flap triangular, tubercles and sete very small. (All three species figured by Milliere, 
Icon. Chen., t. 91.) 
Pura. — Moderate, tapering anteriorly, light-brown or clay-colour, irregularly dark-spotted ; 
supra-anal plate long, anal armature apparently simpler than in most of the observed species. In a 
few threads among food-plant. 
1) Xenochroma planimargo, nov. sp. — Q9, 4o mm. Build and coloration entirely as in .X. camd?dafa, Warren, differing only as 
follows : palpus perhaps slightly stronger, antenna merely serrate, termen of forewing nearly straight (slightly bowed), of hindwing strongly rounded, 
neither wing with the slightest elbow at M!. Face, front ot foreleg and outside and tip of palpus crimson, all else white, wings slightly dusted with ochreous 
grey, and with faint traces of ochreous grey postmedian line, as in cazdidafa. Forewing with M* just separate, hindwing with M! scarcely stalked. 
Blantyre, Nyassaland (J. E. S. Old). Type in coll. Brit. Mus. 
