28 LEPIDOPTERA HETEROCERA 
noticing the constancy with which SC! anastomoses or is connected with C in them, but remains free in 
the present genus. We do not affirm that exceptions could not occur; we only say that, in examining a 
very large number of specimens, we have not found a single instance. The same general fixity of 
tendencies will be found helpful in connection with many other genera, even although it cannot be 
made of absolutely first-class importance. 
Type of the genus : Actenochroma  muscicoloraria (Walker) —  Hyfochroma  muscicoloraria, 
Walker (1893). 
Geographical distribution of species, — N. India. 
I. A. muscicoloraria (Walker). N. India. 
Hypochroma muscicoloraria, Walker, List Lep. Ins. Brit. Mus. Vol. 26, 
p. 1543 (1862). 
Hypochroma sphagnata, Felder, Reise Novara, Lep. Het. t. 125, f. 2 (1875). 
Actenochroma musciéoloraria, Warren, Proc. Zool. Soc. Lond. p. 350 (1893). 
Herochroma muscicoloraria, Swinhoe, Trans. Ent. Soc. Lond. p. 172 (1894). 
Pseudoterpna muscicoloraria, Hampson, Fauna Ind. Moths, Vol. 3, p. 479 
(1895). 
9. GENUS ORTHOCRASPEDA, NOV. GEN, PROUT 
Orthocraspeda, nov. gen. Prout. 
Characters. — Face sloping, slightly protuberant below, densely scaled. Palpus with first and 
second joints hairy beneath, second joint shortly rough-scaled above, third joint smooth-scaled, in c 
longish, in 9 long. Tongue developed. Antenna moderate, in both sexes virtually simple. Pectus 
densely hairy. Femora nearly glabrous. Hindtibia in cf not dilated, in both sexes with .all spurs 
developed. Abdomen broadly crested. Frenulum fully developed. Forewing broad, costa slightly arched, 
apex squared, termen slightly crenulate, anterior half almost vertical, posterior curved, becoming rather 
strongly oblique, cell about two-fifths, DC? incurved, DC? somewhat curved anteriorly, oblique poster- 
iorly, SC! free, SC? stalked with SC?9», R! separate, R* from very little above middle of DC, 
M!separate; hindwing with apex rounded, termen rounded, slightly crenulate, tornus pronounced, 
inner margin rather long, cell short (scarcely over one-third) DC? curved, DC? arising somewhat further 
distally, somewhat curved, oblique, C quite shortly approximated to cell near base, rapidly diverging, 
SC? separate, M! separate. 
Early stages unknown. 
Distinguished from all its allies by the shape of the wings, also from most of them (so far as 
the Q O are known) by the long terminal joint of palpus. The approximation of C of hindwing to the 
cell is almost as short as in the following genus, which, through its more aberrant species nelearia, is 
perhaps somewhat nearly associated with this, in spite of the difference of facies. 
Type of the genus : Ort/ocraspeda netunaria (Guenée) — Hyfochroma netunaria, Guenée. 
Geographical distribution of species. Malayan. 
I. O. netunaria. (Guenée). Natuna Islands to Philip- 
Hypochroma netunaria, Guenée, Spec. Gén. Lép. Vol. 9, p. 279 (1858). pines. 
Terpna crassistriga, Warren, Novit. Zool. Vol. 3, p. 361 (1896) (nov. syn.). 
Actenochroma unicolor, Warren, ibidem, Vol. 6, p. 17 (1899) (nov. syn.). 
Pseudoterpna crassistriga, Semper, Reisen Philipp. (2), Vol. 6, p. 637, t. 65, 
f. 10 (1902). 
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