647 



A CATALOGUE OF THE HETEROCERA OF SIKHIM 

 AND BHUTAN. 



Br G. C. Dudgeon, f.e.s., &c. 



With Notes by fl. J. Elwes, f.z.s., f.e.s., &c., 



AND 



Additions by Sir Geoege F. Hampson, Bart., b.a., f.e.s., &g. 



Part XIII. 

 {Continued from page 355 of this Volume,^ 

 FamUy ARCTIAD^— oontinued. 

 Sub-family Arctian^ — continued. 

 Genus Nic^a, Moore. 

 1243. N. longipennis, Wlk. 

 Sikhim. I have not seen a specimen in any Sikhim collection. 

 (Sikhim, Lidderdale in B. M.,— G. F. H.) 



(I have a single specimen from the old Wilson collection, another from 

 the Khasia hills- i7. J.E.) 



Genus M^NAS, Hiibn. 

 1193. M. venosa, Moore. 

 Sikhim and Bhutan, 1,800 — 3,000 feet. This appears to be not uncom- 

 mon at Punkabaree in September. I have one male in my collection, taken 

 by me at light at Badamtam in May, which has been identified by Sir 

 George Hampson as Thyrgorina venosa, Moore, and which seems typical. 

 Other specimens which I have taken at Punkabaree have no markings on 

 either wing or have the forewing and hindwing with large orange sub- 

 basal patches as well as other orange marginal markings. 1 fail to see, 

 if my specimens have been correctly identified, why this species is placed 

 in the genus Mcenas, which is described as differing from Diacrisia, Hiibn., 

 in the hind tibise being without the medial spurs. These spurs are 

 present in all my specimens, and the species seems to me to be inseparable 

 from the latter genus. It occurs together with D. flavens, Moore, which 

 is similarly constructed; indeed M. venosa, in specimens whetre the orange 

 markings are well pronounced, has the fuscous markings left on the wings 

 similarly distributed to the fuscous markings in the heaviest marked forms 

 of D. flavens as well as the structural likeness. I do not mean to infer 

 that I consider tbe two to be one species, although, until lately, they Were 

 put together as one variable species in my collection, probably owing to 

 some misconception arising from having taken them together. I think 



