[93] 
m 
FAM. GEOMETRIDZE 2 
branches, recalling those of T/2alassodes, a rather long apical portion nearly simple; in Q nearly simple. 
Pectus somewhat hairy. Femora tvpically fringed with some fine hair. Hindtibia in c dilated with 
hair-pencil, in both sexes with all spurs. Hindtarsus in cf typically short. Abdomen not crested. 
Forewing with costa arched, apex moderate to sharp, termen oblique, usually little convex, cell less 
than one-half, DC somewhat curved, SC! stalked (or, exceptionally, connate or closely approximated) 
with SC?5, usually anastomosing with C, SC? normal 1), very rarely anastomosing with SC?, R! connate 
or short-stalked, M! connate or short-stalked: hindwing elongate, subquadrate, but apex rather rounded, 
termen nearly always with an elbow or slight tail at R?, otherwise smooth, or nearly so 2), cell rather 
short, DC? more or less incurved anteriorly, C shortly approximated to cell near base, rapidly diverg- 
ing, SC? stalked, M! stalked. cf genitalia : uncus pointed, with socii, gnathos pointed, harpe indented 
on the outer margin, with diaphanous connection, penis pestillate, eighth sternite terminating in two 
hard scobinated lobes. Show more or less close resemblance to those of Prasinocyma, Hemistola chryso- 
prasaria, Berta, Comvstola, etc. 
Ecc. — Apparently undescribed. 
Langva. — Very slender, twig-like, transversely wrinkled, head deeply cleft, produced into two 
points, prothorax provided with two small points projecting over head, anal flap narrow, triangular 
(Hofmann, Raufen d. Grossschmett. Eur. p. 161, 162; we are acquainted with no very full description). 
PuPA. — Rather slender, light brown, wing-veins and antenna-case dark, anal armature con- 
sisting of four pairs of very small hooks. 
Probably an almost direct derivative of Gelasma, by the loss of frenulum in the gf. The stalking 
of SC! of the forewing seems here to be becoming a fixed character. but a very occasional exception 
prevents our using it as quite absolute. The species are mostly slender, smoothly-scaled, and not rarely 
more or less iridescent. As regards Warren's Leucoglyphica (type. fasciata), we have not seen the gf, but 
believe that Swinhoe (Lep. Het. Oxford Mus. Vol. 2, p. 404) is right in sinking it. It is probably slightly 
aberrant in having more shortly pectinate antenna, but we can find no other structural distinction — an 
exceedingly slight elbow in the termen of forewing and a slight accentuation of the tail of hindwing are 
clearly inadequate for generic separation. 
Type of the genus : Jodis lactearia (Linné) — PAalaena Geometra lactearía, Linné (1858). 
Geographical distribution of species. — Europe, Asia. 
SECTION I. — Wings often iridescent; forewing with SC* normal; 
hindwing always angled at RP. 
1. J. lactearia ( Linné). Europe to Japan, Asia Mi 
Phalaena Geometra lactearia, Linné, Syst. Nat. (ed. 10), p. 519 (17568). nor. 
Phalaena Geometra vernaria, Linné, Fauna Suec. (ed. 2, p. 323 (1761). 
Phalaena Geometra aeruginaria | Schiffermüller], Schmett. Wien. p.314 (1775). 
Phaloena lactea [Geoffroy], Fourcroy's Ent. Paris. p. 273 (1785). 
Phalaena Geometra decolorata, De Villers, Linn. Ent. Vol. 2. p. 385 (1789). 
Phalaena Geometra putataria, Esper, Schmett. in Abbild. Vol. 5, p. 25, t. 2, 
f. 4-6 (1794) (nec Linné). 
Geometra aeruginaria, Hübner, Samml. Eur. Schmett. Geom. t. 9, f. 46 
(17962); p. 17 (1800?). 
Geometra putataria, Haworth, Lep. Brit. (2), p. 3oo (1809). 
Iodis aevuginaría, Hübner, Verz. bek. Schmett. p. 286 (1826:). 
Ptychopoda putataria, Stephens, Cat. Brit. Ins. (2), p. 153 (1829). 
1) In z:/ascía and albideníuda, which might form a separate genus, SC? is stalked to well beyond SC*. 
2) l'ermen of hindwing prectically quite rounded in »:icra and a/0identua, littie elbowed in »2/fascía. 
