286 Mr. W. Schaus on 



otlier species of the Asteroidea is necessary before one can 

 venture with any degree of assurance to answer tlie questions 

 raised by the observations recorded in these notes. 



For assistance in consulting tlie scattered and by no means 

 readily accessible literature of autotomy and self-evisceration, 

 I am indebted to the kindness of Dr. Bather of the British 

 Museum of Natural History, and of Mr. A. R. Nichols of 

 the National Museum, Dublin. 



XXXIX. — Neio Species of Heterocera from Costa 

 llica.—XNU. By W. Schaus, F.Z.S. 



[Coutinued from p. 240.] 



Subfam. Geometbin^. 

 Peoutoscia, gen. no v. 



(J . Antennae serrate and densely ciliate. Palpi short ; 

 second joint thickly scaled, third slender. Femora and tibiae 

 dilated, the hind tibiae with large tufts of long hairs; ventral 

 tufts at end of abdomen. Fore wings broad ; outer margin, 

 rounded, slightly incurved above tornus ; vein 2 from just 

 beyond middle of cell ; 3 and 4 apart ; 6 from cell ; 7 from 

 end of areole ; 8, 9, 10 stalked from end of areole ; 11 from 

 middle of areole. Hind wings broad, excised and lobed at 

 anal angle; median approximated to inner margin; vein 2 

 apparently absent; 3 from near angle ; 4 from angle; 5 from 

 middle of discocellular, downbent towards angle; 6 from 

 upper angle; 7 from cell ; underneath with long tufts about 

 anal angle, upturned hairy scales along vein 4, and down- 

 turned scales along vein 6 ; an oblique ridge of hairy scales 

 between veins 6 and 7. In the female the neuration is 

 normal, and the tufts are absent ; the anal angle is slightly 

 produced. 



Proutoscia mirijica^ sp. n. 



$ . Frons buflf- white with black points. Vertex white 

 shaded with lilacitie grey behind. Collar and thorax mottled 

 lilacine and whitish, with a few dark irrorations. Abdomen 

 above lilacine grey ; two dorsal and an interrupted lateral 

 reddish-brown line. Wings : base and margins pale lilacine 

 grey. Fore wings : disc of wing with a large semihyaline 

 pale yellow space pointed towards base of cell, its hind edge 



