PTEROPHORID.E-PTEROPHORUS. 385 



1. P. monodactylus, L. ; pterodactylus, Stn. 

 Manual. — Expanse 1 inch. Fore wings long ; tips hardly 

 drooping; drab, whitish-drab or pale red-brown; without 

 markings except a faint black dot before the fissure, and 

 sometimes some black dusting. Hind wings long, shining 

 dark brown. 



Antennfe simple, slender, reddish-brown, obscurely barred 

 with paler ; palpi small, slender, rather drooping, pale brown; 

 head and thorax pale brown, reddish-brown, or whitish-ash 

 colour; abdomen brown, with a succession of dorsal pale 

 dashes. Fore wings narrow, long, and rather loosely plumed; 

 costa very faintly and regularly arched ; apex of each lobe 

 bluntly pointed, hardly drooping ; colour ashy-brown, grey- 

 brown or reddish-brown, often with plentiful white dusting ; 

 there is also some dusting of black atoms and dots, parti- 

 cularly along the margins ; a small black spot lies before 

 the fissure ; and a short series of similar liut smaller dots at 

 the hinder edge of the second lobe ; cilia pale brown. Hind 

 wings divided into very long lobes, all, with their cilia, 

 shining golden-brown. Legs very long, pale brown. Female 

 similar. 



Underside of the fore wings shining golden-brown with 

 the costa white. Hind wings shining grey-brown. Body 

 brown. 



Constantly varying in colour, as already suggested, from 

 whitish-drab to pale red-brown ; also in some degree in size. 

 I have a specimen, taken in Wicken Feu, Cambs., which is 

 hardh' more than one half the usual expanse. 



On the wing in August and through the autumn, hyber- 

 nating, and re-appearing from March till J une, in a single 

 generation. 



Larva about five-eighths of an inch long, and stout in 



proportion ; head rather small, narrower than the second 



segment, polished, pale yellow, the mandibles light brown ; 



body uniform, tapering a little behind, bright yellowish- 



VOL, IX. 2 B 



