378 GEOMETRID®. 
Secr. IT. Wings clothed with hair-like scales; claspers of male 
large and exserted. 
A. (Polyphasia). Antennee of male ciliated. 
3/24. Larentia truncata, Hiifn. Berl. Mag. iv, p. 602. 
Geometra russata, Schiff. Wien. Verz. p. 118. 
Phaleena immanata, Haw. Lep. Brit. p. 323. 
Cidaria subapicaria, Moore, P. Z. S. 1867, p. 663; C. §& S. 
no. 3871. 
Cidaria calamistrata, Moore, P. Z. S. 1867, p. 662, pl. 33, fig. 6; 
C. & S. no. 3847. 
Cidaria cinereata, Moore, P. Z. S. 1867, p. 662; C. & S. no. 3850. 
Polyphasia albiangulata, Warr. P. Z. S. 1893, p. 373. 
The typical form has the head, thorax, and abdomen fuscous 
and grey. Fore wing with the base grey-brown, with waved 
subbasal line ; a chestnut antemedial band angled below costa and 
edged by waved black lines ; the medial band broad and white, with 
two waved black lines on it, which enclose a black discocellular 
speck and form an annulus and figure-of-8-shaped mark below the 
cell, its outer edge oblique from the costa to vein 4, where it is 
doubly toothed, then inwardly-oblique and strongly toothed to 
inner margin; a dentate grey submarginal line, with chestnut 
between it and the marginal band. Hind wing pale fuscous 
brown ; underside with cell-speck and irregularly curved line. 
The Himalayan form nearest to the typical European form is 
calanustrata, which differs in the abdomen and hind wing being white; 
cinereata has the whole base of fore wing rufous, the grey of the 
medial band extending over the whole outer area except the apex ~ 
and a chestnut submarginal spot on inner margin, the waved lines 
and edges to the band obsolescent; in another form the area 
between end of cell and outer angle is suffused with pale rufous. 
Another set of forms are grey suffused in parts with fuscous, or 
with the medial band of fore wing clear grey. 
The form immanata, of which typical specimens occur in the 
N.W. Himalayas, has the medial band dark; whilst another form 
has the fore wing uniform rufous, except for the four waved lines, 
which are whitish; and another form with the dark band has its 
white edges connected by a bar above vein 1. 
Subapicaria is a dark form from Sikhim, usually with a 
prominent white patch on the costa of fore wing beyond the 
medial band; the hind wing black-brown; another form has the 
cell-spot on a large white patch extending to the costa, and the 
postmedial line white throughout: the form albiangulata has a red 
antemedial band; an oblique white bar from middle of costa to 
lower angle of cell; the postmedial line replaced by a white band 
angled outwards almost to the margin at vein 4 and acutely in- 
wards below vein 2, sending a tooth inwards below vein 6, and 
with a red maculate band, most prominent near costa, beyond it. 
Hab. Nearctic and Palearctic regions; Himalayas; Khasis. 
Exp. 36-42 millin. 
