278 LEPIDOPTERA. 



raised ; abdomen rather slender, tapering, minutely crested 

 on three segments ; fore wings trigonate, with a short discal 

 cell ; hind wings rather squared. 

 We have only one species. 



1. P. cytisaria, Schiff.; pruinata, Stmid. Cat. — 

 Expanse 1^ to li inch. Body moderately slender, abdomen 

 tapering; fore wings triangular, bluish-green, with two 

 faintly bluer or greyer jagged transverse lines, and a cloudy 

 white subterminal line ; hind wings paler. 



Antennse of the male pectinated to near the tip with short 

 solid ciliated teeth, apex simple, teeth brown, shaft white ; 

 palpi short, black-brown above, white beneath ; tongue long ; 

 face deep black, but sharply divided ofi' beneath the antennas, 

 the upper part of the head being white; thorax rounded, 

 fluffy with raised scales on the shoulder-lappets, bluish-green ; 

 abdomen tapering, greenish-white, the first three segments 

 decorated with loose dorsal crests of the same colour — which, 

 however, are often absent or laid down — lateral tufts large 

 and conspicuous, white except the hinder and the anal tuft, 

 which are pale ochreous. Fore wings trigonate ; costa gently 

 arched ; apex bluntly angulated ; hind margin gently and 

 evenly rounded ; dorsal margin straight, strongly ciliated ; 

 first and second lines both rather near to the middle of the 

 wing, often verj- obscure, the first erect, a little curved, 

 toothed on the nervares, clouded and rather thick, grey-green ; 

 the second similar in colour and thickness, very little oblique, 

 much toothed on the outer side, two points in the middle 

 more especially projecting ; discal spot a slender perpendi- 

 cular green streak ; half-way between the second line and 

 the hind margin is a faint cloudy white indication of a rather 

 direct subterminal line ; cilia pale green, tipped with white. 

 Hind wings elongated and somewhat squared, the hind 

 margin but slightly curved and the anal angle rectangular; 

 pale green, shading off nearly to white at the base and upper 

 portion of the costal region ; in the middle of the wing is an 



