FAM. GEOMETRID/E 89 
Tyne of the genus : Ofisthotia lumidilinea (Moore) — Geometra tumidilinea, Moore (1894). 
Geographical distribution of species. —- Indian. 
1. O. tumidilinea ( Moore). N. India. 
Geometra tumidilinca, Moore, Lep. Coll. Atkinson, p. 249 (1888). 
Opisthotia tumidilinea, Warren, Novit. Zool Vol. 1, p. 386 (1894). 
Elliocuemis tumidilinta, Hampson, Fauna Ind Moths, Vol. 3, p. 489 (1505). 
59. GENUS OSTEOSEMA, WARREN 
Osteosema. Warren, Novit. Zool. Vol. r, p. 392 (1894). 
Chlorostrota. Warren, ibidem. Vol. 4, p. 36 (1897). 
Characters. — Face scarcely protuberant, smooth-scaled. Palpus rather slender, short to 
moderate, second joint shortly rough-scaled, third joint small in both sexes, or moderately long in 9. 
Tongue developed. Antenna rather short, in both sexes bipectinate with simple apex, the branches shorter 
in the Q than in the cf (Pl. 5). Pectus and femora hairy. Hindtibia in gf not dilated, in both sexes with 
all spurs developed. Abdomen not crested. Frenulum fully developed. Forewing with costa arched, apex 
moderate or rather pronounced, termen oblique, very faintly waved, sometimes shghtly bent at R*, 
tornus rather pronounced, cell less than one-half, DC incurved, SC! free, SC? normal, R! separate 
(in Pastor occasionally short-stalked), M! approximated to R?; hindwing with apex rounded, termen 
convex, somewhat waved, often elbowed at R?, tornus pronounced, sometimes (especially in fasfor) 
with an approach to the expansion of Ofisthotia, cell short, DC not very oblique, C approximated to SC 
for some distance near base, then rapidly diverging, SC? stalked, M! stalked. 
Early stages unknown. 
Type of the genus : Osleosema sangiilineata (Moore) — Comibaena sanguilineala, Moore (1894). 
Geographical distribution of species. — N. India, Borneo. 
SkcTION I. — cf antennal pectinations short and reaching to little beyond two-thirds ; 
Q palpus with third joint quite short (Osfeosema, Warren). 
1. O. sangutlineala ( Moore). N. India. 
Comibaena sanguilineata, Moore, Proc. Zool. Soc. Lond. p. 635 (1867). 
Osteosema sanguilineata, Warren, Novit. Zool. Vol. 1, p. 392 (1894). 
Eucrostes sanguilineata, Swinhoe, Trans. Ent. Soc. Lond. p. 176 (1894). 
T halassodes sanguilineata, Hampson, Fauna Ind, Moths, Vol. 3, p.512 (1895j. 
2. O. fastor (Butler). N. India. 
Chlorodes pastor, Butler, Ann. Mag. Nat. Hist. (5). Vol. 6, p. 216 (1880) ; 
Ill. Het. Coll. Brit. Mus. Vol. 6, p. 73, t. 117, f. 13 (1586). 
Thalassodes pastor, Hampson, Fauna Ind. Moths, Vol. 3, p. 511 (1895). 
SECTION II. — cg antennal pectinations rather long, and reaching to near apex; 
Q palpus with third joint relatively long (C/Uorostrofa, Warren). 
3. O. alboviridis ( Moore). N. E. Bengal. 
72): 
) 
Geometra alboviridis, Moore, roc. Zool. Soc. Lond. p. 581.t. 34, f. 3 (15 
Uliocnemis albiviridis, Hampson, Fauna Ind. Moths, Vol. 3, p. 489 (1805). 
Chlorostrota albiviridis, Warren, Novit. Zool. Vol. 4, p 36 (1897). 
4. O. praeampla ( Warren) (praec. var. ?). Assam. 
Chlorostrota Praeampla, Warren, Novit. Zool. Vol. 4, p. 37 (1897). 
