1 8 RHOPALOCERA N I MONICA. 



It is not without considerable hesitation that I quash the Rev. Mr. Murray's species. I have not yet 

 been able to rear either L. argia. or L. japonica, and do not even know their food-plant, although the 

 species is most abundant; in uniting them I am guided by the fact that L. japonica only appears during 

 the spring and autumn, L. argia during the intervening warm months. 



53- Lycaena argus, Linn. (PL 5. fig- '*, IB, ic.) 



Localities Fuji-san, Nikko, Asama-yama, ICuriles (?) 

 Time of appearance August. 



In Japan this is a most variable insect according to locality, and there are many forms ; some are blue, 

 others almost puce and again others are distinctly greenish-blue. This last form is most interesting, as the 

 males are always nearly as dark as the females, the greenish scales being sparsely scattered towards the 

 base and margin of the fore and hind wings. I have a damaged specimen from the Kurile Islands, which I 

 believe to be this species, captured by Mr. H. J. Snow. I have noticed at Asama-yama three forms within 

 a few hundred feet elevation, but although individual specimens are very distinct, I am forced to the con- 

 clusion, on examination of a large series, that they are all one species. 



54- Lycsena segon, Schiff. (Pi. 5. fi g- 2 -) 



L. micrargus, But. 

 I have a single specimen from the north of the main island. 



55- Lycsjna argiolus, Linn. (Pi. 4, fig. 25*. 2 5 B -) 



Locality Yokohama. 



Time of appearance spring and summer. 



There are several broods of this insect. While the male is constant, there are two very dissimilar 

 temperature forms of the female; one has a large amount of black on the upper side, the other, which 

 appears generally later, is much brighter. The second brood often exhibits both forms. 



56. Lycsena lycormas, But. (Pi. 5. fi g- 3 A > 3 B -) 



Locality Yezo. 



I have only seen this species from Yezo where it is abundant. Some male specimens are almost as 

 dark as the females. 



57- Lycsena pryeri, Murray. (Pi. 5. fig- l6 -) 



Localities Yokohama, Yezo. 



Time of appearance May and June. 



This is the finest of the blue section of the Japanese Lycaenidae. Unlike the rest it only appears 

 once in the year. 



