32 LEPIDOPTERA INDICA. 



Chbtsalis. — Greenisli-grey ; thorax and anterio-dorsum sliglitly arched ; head- 

 piece obtusely pointed in front. (Described from Davidson's figures.) 



Habitat. — W. and B. Himalayas ; Continental India ; Assam ; Silhet ; Burma ; 

 Tenasserim ; Siam ; Malay Peninsula, etc. 



Dry-season Variety. — Occasionally a variety of the male of the dry-season form 

 occurs in which the markings of the upperside are much paler yellowish-ochreous, 

 the discoidal streak and discal bands on both wings are very broad and less defined, 

 the lower end of the discoidal streak being conflaent between the medians with the 

 lower discal band ; in one example the subapical band covers the entire apex and is 

 also confluent with the lower band ; the intervening ground-colour is thus much 

 restricted and is of an obscure brownish-black. On the underside the ground-colour 

 is much paler, the bands and strigge indistinctly defined. An example of this 

 variety, from Maungbhoom, Bengal, is in our possession ; one from Ooty, Nilgiris, 

 in Colonel Swinhoe's collection, and one from Sikkim, taken in March, by Otto 

 Moller, in Mr. W. Rothschild's collection. 



Distribution. — Mr. W. Doherty records taking it in Kumaon, at Rauibagh, the 

 Terai, and the Ramganga, Kali, and Gorra Valleys ; common at from 1000 to 

 4000 feet elevation (J. A. Soc. Bengal, 1886, 125). We possess specimens of the 

 wet-season form from Sikkim and Bhotan, taken by Mr. G. C. Dudgeon, and of the 

 dry-season form, males from Nepal, taken by the late General G. Ramsay ; Sikkim, 

 taken in March, a male variety from Maungbhoom, Bengal, a female from Calcutta, 

 both sexes from Kanara, Malabar, and from the Nilgiris, also from Moulmain, 

 Tounghoo, Burma, and a female from Yemma Choung, taken in February by Colonel 

 C. H. E. Adamson. Mr. L. de Niceville records the wet-season form from N.E. 

 and S. India, and the dry-season form from Sikkim, Assam, Silhet, Malda, Orissa, 

 Gangam, Nilgiris and Trevandrum, also from Chittagong and Upper Tenasserim. 

 The dry form (plagiosa) taken in Sikkim in December, and typical Hordonia 

 and intermediate forms from the spring to the autumn ; typical jjlagiosa 

 taken in Calcutta in February only ; in Orissa, Mr. W. C. Taylor 

 has taken plagiosa in February and March, and Mr. J. L. Sherwill in the 

 Jorehat District, Assam, in March" (Butt. Ind. 79). " In Sikkim, it is a common 

 species throughout the year, at low elevations. It is seasonally dimorphic, true 

 Hordonia being the rains form, idagiosa occurring in the dry-season " (de Niceville, 

 Sikkim Gaz. 1894, 136). Lieut. E. Y. Watson, during the Chin-Lushai Expedition, 

 obtained typical Hordonia at Pauk from September to December, and single 

 specimens in February and March. Specimens transitional to plagiosa at 

 Pauk and Tilin in November, and at Tilin from December to April. 

 Plagiosa being taken at Tilin in March and April, and a single specimen 

 in January " (J. Bombay N. H. S. 1891, 37). The type specimens of plagiosa were 



