FAM. GEOMETRIDZE 167 
Early stages unknown. 
We have seen only one specimen of each species, that of ocrolauta with hindlegs lost. On account 
of their shape, etc., they are by no means certainly congeneric. Should ochrolauta prove to have only two 
spurs in the Cf, it might go with LopAocrita. The aspect is nearer that of Uliocnemis, etc., and altogether 
the position is still somewhat problematical. 
Type of the genus : Mixolophia ochrolauta, Warren (1894). 
Geographical distribution of species, — N. India. 
1. M. ochrolauta, Warren. Bhutan. 
Mixolophia ochrolauta, Narren, Novit. Zool. Vol. 1, p. 391 (1894). 
Hemithea ochrolauta, Hampson, Fauna Ind. Moths, Vol. 3, p. 490 (1895). 
2. M. albiradiata (Warren) (huj. gen. ?). Assam. 
Uliocnemis albiradiata, Warren, Proc. Zool. Soc. Lond. p. 356 (1893). 
Hemithea albiradiata, Hampson, Fauna Ind. Moths, Vol. 3, p. 490 (1895). 
120. GENUS EPISOTHALMA, SWwINHOE 
Episothalma. Swinhoe, Ann. Mag. Nat. Hist. (6), Vol. 12, p. 149 (1893). 
Chlorodontopera, sect. Episophthalma. Hampson, Fauna Ind. Moths, Vol. 3, p. 483 (1895). 
Characters. Face smooth, rounded. Palpus moderate, second joint shortly rough-scaled, 
third joint in cf rather small to moderate, in Q smooth, slender, moderate to long. Tongue developed. 
Antenna in cg dentate with fascicles of cilia, in Q nearly simple. Pectus and femora hairy. Hindtibia 
in G' sometimes dilated with hair-pencil, median spurs wanting or absolutely vestigial, in Q with all 
spurs usually present, but very variable in degree of development, the medians sometimes almost 
entirely obsolete. Abdomen with small crests. Frenulum in c rather strong, from before slight basal 
expansion, in Q quite rudimentary. Forewing with costa very gently arched, more strongly so towards 
apex, apex acute, termen usually crenulate, slightly incurved below apex, prominent or even sharply 
toothed at R?, thence very oblique, cell less than one-half, DC incurved, SC! free, SC? normal, R! con- 
nate or stalked, R? from rather near apex of cell, M! closely approximated to R?, exceptionally very 
shortly stalked; hindwing with termen crenulate, a strong tooth at R? and another (often less strong) 
at R!, more or less excised between, tornus pronounced, cell short, C very shortly appressed to or 
anastomosing with SC, then rapidly diverging, SC? stalked, R? from near apex of cell, M! approximated, 
connate or stalked. Cf genitalia with uncus pointed, socii large, angular, gnathos not united, harpe with 
clasper in fold, penis pestillate, spatulate, long coremata present; suggesting an alliance with Maw«ates. 
Early stages unknown. 
It seems feasible to regard this genus as approximately parental to Hemithea, though certainly 
retaining some signs of affinity with the more primitive genera CAlorodontofera, etc. 
Tyne of the genus : Episolhalma robustaria (Guenée) — Hemithea robustaria, Guenée — T halassodes 
sisunaga, Walker (1893). 
Geographical distribution of species. — India to New Guinea. 
I. E. robustaria (Guenée). India to Burma. 
Hemithea robustarta, Guenée, Spec. Gén. Lép. Vol. 9, p. 383 (1858). 
T'halassodes sisunaga, Walker, List Lep. Ins. Brit. Mus. Vol. 22, p. 550 (1861). 
Thalera robustaria, Walker, ibidem, p. 595 (1861). 
Thalassodes macruraria, Walker, ibidem, Vol. 26, p. 1561 (1862). 
Thalassodes fimbriaria, Walker, Char. Undescr. Lep. p. 97 (1869). 
? Thalassodes indeterminata, Walker, ibidem, p. 98 (1866). 
