314 Mr. L*. B. Prout on new 



the distal three commonly a little more distinct^ the approxi- 

 mated pair which represent the postmedian sharply broken 

 near the costa (as in innotata), thence nearly straight, 

 separated from the last line by an appreciably pale line or 

 narrow band, the last line followed distally by indefinite 

 dark shading ; cell-dot weak ; terminal line blackish, inter- 

 rnpted at the veins, slightly thickened between ; fringe very 

 slightly darker in proximal than in distal half. 



Hind wing elongate ; abdominal area concolorous with 

 fore wing or rather darker, with the beginnings of lines, a 

 narrow terminal area also a little darkened in the $ ; the 

 rest almost unmarked, in the ? quite pale, in the ^ densely 

 covered with coarse, slightly erect scales of an ochreoiis- 

 brownish tinge, apparently specialised in correlation with 

 similar scales on hind-marginal area of fore wing beneath. 



Both wings beneath with longer and stronger cell-marks; 

 fore wing in costal, apical, and distal areas with the markings 

 of upperside more or less reproduced, hind wing quite pale, 

 with similar markings. 



Ecuador: Riobamba, 3 cT c?, 17 ? ? . Type (^ , allotype 

 ? , and others in coll. Deutsch. Ent. Mus., 1 (^ , 2 ? ? in 

 coil. L. B. Proutj kindly presented by the Museum. 



Subfam. Geometbin^, 

 11. Opisthoyraptis swanni, sp.n. 



^ . — 55 mm. 



Head yellow, cheek with a brown spot, which is con- 

 tinned on patagium ; face without projecting scales. Palpus 

 scarcely 1^, third joint quite short ; brown. Antenna 

 serrate, with quite short fascicles of cilia ; shaft proximal ly 

 brown, distally whitish. Thorax, abdomen, and legs yellow 

 (fore legs lost) ; middle and hind legs with tips of femur, 

 tibia, and tarsus mostly brown ; all spurs brown. 



Fore wing ample ; SC^~^ long-stalked, separating little 

 before origin of SC^; yellow, with some excessively shadowy 

 interneural greyish spots ; markings red-brown, clouded in 

 part with dark purple-grey (as is the darker aberrations (jf 

 trident if era, Moore) ; a very small basal patch in costal half, 

 continued as a spot on patagium; antemedianline represented 

 by short dashes on both margins and minute dots on M and 

 SM^ ; an extremely large, roundish blotch beyond middle, 

 from costa to near M^, its longitudinal diameter about 8 mm., 

 one-third in the cell and two-thirds beyond, its distal edge 

 slightly dentate outward on the radials and M^, a minute 

 white discocellular dash in this blotch at base of 11^; a small 



