ZEPHYEUS. 385 
"Male. Tpperside orange-yellow (the bauds of tho imderside iiidistiuc-tly seen throiig-h); the 
outer margins dark brown, narrow : a black spot marked with a spot of white at the' 
anal angle. Underside orange-yellow. Both wings crossed transversely by numerous bands 
and spots of brown. Posterior wings orange at the base of the tail, marked with two black 
spots. 
" Female differs from the male in having the apex of the anterior wing broadly brown ; two black 
spots near the base of the tail ; and the outer margin of the posterior wing broader, traversed 
near the tail by a line of white. 
" Exp. ly*^ inch." (Hewitson, I. c.) 
According to Pryer this species is common at Yokohama. I took it in July 
near Nagahama, Lake Biwa, and also at Hakodate. Mr. Elwes states that 
this insect was taken at Vladivostock by Dorries (Proc. Zool. Soc. Lond, 1881, 
p. 883). 
Zephyrus jonasi. 
Thecla jonasi, Janson, Cistula Entora. ii. p. 157 (1877) ; Obertliur, Etud. d'Entom. vi. 
p. 13, pi. viii. fig. 2 (1881). 
Dipsas jonasi, Pryer, Rhop. Nihon. p. 13, pi. iv. fig. 5 (1886). 
" 5 . Above orange, slightly golden, base of wings blackish ; primaries with an apical black 
border, wide in front but narrowed towards the inner angle ; secondaries somewhat produced 
at the apical angle, tails black, tipped with white, margin between the tail and anal angle 
slightly emarginate and edged with black ; beneath brownish ochreous ; primaries with 
a narrow brown streak at the end of the cell, and a transverse brown band (almost divided 
into spots by the nervures) midway between it and the apex, extending from the costa almost 
to the inner margin, where it becomes narrow and of a darker brown ; secondaries with a 
brown streak at the end of the cell, and a fine transverse white line beyond the middle, 
divided beyond the nervures, and edged with black on its inner side, commencing at the 
costa, turned inwards posteriorly, and ending just above the anal angle, which is orange-red 
and the lobe black. Expanse of wings 16-22 lines. 
"Allied to T. hdra, Hew.; but it is of a darker orange above, without the black spots on 
secondaries, has more elongate wings, and is very differently marked on the underside. 
" A few specimens were found by Mr. Jonas flying about a chestnut-tree near the Eiver Yokawa, 
at the foot of Assama-yama." (Janson, 1. c.) 
According to Pryer, Z. jonasi occurs in Yezo, and at Yokohama and Asama- 
yama. There were specimens in his collection labelled " Oiwake, 1885." 
I took specimens in August, flying about small trees, at Hakodate in 
Yesso. Oberthiir states that some specimens were taken by M. I'Abbe David 
in the north of China, and adds : — " The Chinese examples are larger than 
those fi'om Japan, but do not present any other difference." 
Staudinger (Rom. sur Lep. vi.) records this species from various parts of 
Amurland. 
