LIST OF THE LEPIDOPTERA OF WEI-HAl-WEl. 155 



summer is almost entirely in July and August, the remainder of 

 the period, from March to November, being dry and sunny. 



Chifu (Chefoo) is some forty miles along the coast to the 

 westward of Wei-hai-wei, and is so similar in physical and 

 fauuistic features that I have included captures made there in 

 the present list. 



Wei-hai-wei seems to be well within the Palsearctic Region, 

 the Oriental Region not extending north of the Chusau Islands 

 on the mainland, though there is a considerable admixture of 

 Oriental with Palsearctic forms in the south of Japan. 



The periods during which i was at Wei-hai-wei or Chifu were 

 April to July, October and November, 1898; 19th April to 20th 

 June, 1899 ; and 26th September to 18th October, 1899. Most 

 of my collecting was done in Leu-kung-tao, and on the mainland 

 around "Flagstaff Camp" (the nearest point to the island) and 

 the walled city of Wei-hai-wei, which gives its name to the 

 district, and on the slopes of Mount Goschen at the back of 

 Flagstaff Camp. If anyone were to reside on shore with 

 opijortunities for night-work, the list of moths would almost 

 certainly be increased to live or six times its present dimensions. 

 Indeed, I myself have some thirty or forty additional species, 

 which I was unable to identify during my brief stay in England. 



The identifications were made in most cases from specimens 

 in the National Collection, and 1 have to thank Dr. A. O. Butler, 

 Mr. W. F. Kirby, and Mr. F. Heron, for their kind assistance in 

 naming my captures. 



RHOPALOCERA. 



Fam. ]Symphalid;e. 



Sub-Fam. Nymphalin^. 



Argynnis adippe, L. — Occurs abnudautly from June to September ; 

 I have found it as early as 27th May and as lute as 16tb October. It 

 has a great liking for tall dower-heads, especially thistles, and it is a 

 fine sight to watch them sail from dower to dower, now exhibiting 

 their tawny velvet markings, and now dashing their silvery lustre in 

 the sunshine. The type, as we know it in Europe, does not seem to 

 occur, the specimens rangiug from var. cureiiippe, Leech, to var. nerippe, 

 Felder ; this latter is olteu reckoned a distinct species, but I prefer to 

 consider it here as a form of adippe. Some of the females, taken in 

 July, are very dark, and look quite black when on the wing. 



Pohjcjonia c-aureuni, L. — Worn specimens are fairly common in 

 April, but 1 have seen none in the autumn. 



Pyranieis cadirrhoe, Fb. (= mdica, Herbst.). — Moderately common 

 on the mainland hills in May and June ; I have seen none in autumn. 

 Apparently does not occur m Leu-kung-tao, as it is essentially a hill 

 species, rarely descenuing below lOUO feet, 



Pijrmneis cardui,h. — Abundant all the fineweather— May to October. 

 Especially fond of hiil-tops. 



Hestina nssimilis, L. — Occurs on the mainland hills in June and 

 July, but is not very common. 



