182 NOVTTATES ZOOLOGICAE XXV. 1918. 



whitish ; a dark terminal line ; cilia with whitish line at base and waved whitish 

 line at middle. Underside of forewing brown, the costa! area irrorated with 

 ochreous white, the inner and terminal areas whitish, a sinuous dark medial 

 line and subterminal line excurved at middle ; liind\v'ing white irrorated with 

 brown, a small dark discoidal spot, curved slightly waved postmedial line, and 

 diffused subterminal line. 



Ab. 1 . Forewing with the medial shade interrupted at median nervure and 

 lot expanding below the cell. (Sikkim.) 



Hab. SikTrim. 1,800 ft. (Dudgeon), 1 o, 2 ? ; Assam, Khasis, 1 S type. 

 Exp. 26-30 mill. 



5750((. Lithacodia mesoplaga n. sp. 



?. Head and thorax pale rufous ; antennae black ; palpi dark brown, the 

 extremity of 2nd joint and the 3rd joint pale rufous ; abdomen white tinged with 

 brown, the crests black : pectus, legs, and ventral surface of abdomen whitish 

 suffused with rufous, the fore tibiae black, the tarsi banded with black. Fore- 

 wing white suffused with rufous with an olive-green tinge, tlie medial area with 

 a triangular dark ohve-brown patch from cell to inner margin, the costal area 

 irrorated black and wliite, the terminal area with some black mixed ; a small 

 black spot in the cell near base ; antemedial hne black defined on inner side 

 by white, curved and slightly waved ; a minute black spot in the cell touching 

 the antemedial hne, and black discoidal bar ; postmedial line rather diffused, 

 black to vein 2, then double and filled in with white, bent outwards below costa, 

 then sUghtly waved, excurved to vein 4, then incurved, some white points 

 beyond it on costa ; subterminal Hne formed by obscure blacldsh marks. Hind- 

 wing whitish suffused with red-brown, the termen whitish except towards tornus ; 

 a. fine brown terminal line. Underside of forewing whitish, the disk suffused with 

 brown, the costa irrorated with blackish ; hindwing white irrorated with red- 

 brown, a small brown discoidal spot and curved postmedial Une. 



Hab. Iir. Burma (Mackwood), 1 ? type. Exp. 18 mill. 



Genus Acaenica nov. 



Type: A. diaperas. 



Proboscis fully developed ; palpi obliquely upturned, the 2nd joint reach- 

 ing to above vertex of head, smoothly scaled in front and very slightly angled 

 with hair behind at middle, the ."Jrd joint long ; frons smooth, with large tuft of 

 hair above ; eyes large, round ; antennae of male with fasciculate cilia and 

 bristles ; thorax clothed almost entirely with scales ; tibiae smoothly scaled ; 

 abdomen with dorsal crest at base only. Forewing with the apex somewhat 

 produced, the termen very slightly excised below apex and excurved at middle, 

 not crenulate ; veins 3 and 5 from near angle of cell ; 6 from upper angle ; 9 

 from 10 anastomosing with 8 to form the areole ; 1 1 from cell. Hindwing with 

 the tornus sUghtly lobcd ; veins 3, i from angle of cell ; 5 obsolescent from 

 middle of discocellulars ; 0, 7 from upper angle ; 8 ahastomosing with the 

 cell near base only. 



In key differs from Eustruiia in the palpi being long, obhque, the 2nd joint 

 reaching to above vertex of head and sUghtly angled with hair above at middle, 

 the forewing with the termen sUghtly excised below apex and excurved at 

 middle, the hindvWng with vein 5 from middle of discocellulars. 



