S.ATSUMA. 



353 



Thecla rubi, Linntcus, has the male mark as in S. fern a and S. cine, and 

 in many other respects is similar in structure to the latter. 



Mr. de Niceville is inclined to merge the genus Safsuma in Thecla because 

 Safsunia agrees with Thecla spini and T. rubi in the neuration and character 

 of the male mark ; but it appears to me that it would be better to remove ruhi 

 into the genus Satsuma, as the shape of the wings of this species, absence of 

 tails, and character of under surface ornamentation are quite unlike any true 

 Thecla (of which T. spini is the type) ; it agrees, however, in most respects 

 with the species included in the genus Satsuma. 



Satsuma ferrea. 



LijC(Ena ferrea, Butler, Journ. Linn. Soc, Zool. ix. p. 57 (1868). 

 Satsuma ferrea, Murray, Etit. Mo. Mag. xi. p. 168 (1874). 



Thecla frivaJdszkyi, Pryer (nec Lederer), Rhop. Nihon. p. 16, pi. iv. fig. 20 (1886). 

 ? Thecla cterulescens, Motschulsky, Bull. Mosc. xxxix. pt. 1, p. 191 (1866) *. 



Lyccena ferrea, Butl. — "Alfe supra chalybeo-ctErulefE, margiiiibus cinereo-fuscis. 



" Alae anticae subtus cinereo-fuscas, cclla fusco terminata, fascia post cellam angulata fusca extus 

 pallida post nervulum medianum secundum termiDanti ; postica; fusco-rufescentes, area abdo- 

 minali cinereo roratte, fascia pallida post cellam valde irregulari, ad costam intus albo 

 marginata. 



" Corpus fuscum. 



" Alar exp. unc. 1 i." {Butler, I. c.) 



The male of this species has a large, pale, and conspicuous " sex-mark " 

 on the primaries, very similar to this character in male Thecla rubi. The male 

 of Satsuma frivaldszkyi, Led., has the sex-mark small, dark, and inconspicuous. 



I was at one time inclined to follow Mr. Elwes in considering Satsmna 

 ferrea synonymous with S. frivaldszkyi, but I now find that the Amurland 

 specimens are quite distinct from the Japanese. Apart from the different 

 character of the " male mark," S. ferrea, Butler, is separable from *S'. fri- 

 valdszkyi, Lederer, by the colour and markings of the under surface of 

 secondaries : thus in S. ferrea the ground-colour is reddish fuscous, and the 

 submarginal line is brownish and diffused ; in S. frivaldszkyi the ground- 



* Thecla caerulescens, Motschulsky. "Statura Th. co'rulecp, Bremer, Cat. Mus. Petr. i. 

 tab. iv. fig. 4, sed maculis aurantiis nullis. Alls fusco-, apice brunneo-ciliatis ; supra : ca;ruleis, 

 versus marginem nigricantibus ; subtus : anticis testaceo-cinereis, post medium linea transversa 

 undulata anguslissimc albida ; posticis nigro-piceis, versus latera postice testaceo-cinereis, linea 

 transversa valde sinuata angustissima punctoque subapicali albidis." (Jlotschulshj, I. c.) 



