AMBLYPOBIIN^. 203 



the wing varying somewhat in extent in different examples. Underside paler than in 

 the male, the markings as in the male, but generally fairly prominent. 



Expanse of wings, ^ ? 1-/^ to ly^^ inches. 



Genitalia. — Most peculiar ; the tegumen is elevated into a high saddle-back ridge, 

 and then carried forward into two strong, curved, pointed tusks, jointed at the base 

 with the tegumen, below which are the usual hooks. The clasps are composed of two 

 portions, the hinder portion extending upwards with a hammer-shaped head, the fore 

 portion small, sub-triangular, joined at its lower hind extremity to the other part. 

 The penis is stout, strongly curved in its whole length. 



Habitat. — Sikkim. 



Distribution. — Appears to be confined to Sikkim, where it is common ; we have 

 received many examples. 



SECTION III. 

 Without tails. 



ARHOPALA BELPHCEBE. 



Plate 688, figs. 3, ^ , 3a, $. 



Arhopala helphoehe, Doherty, Journ. As. Soc. Bengal, 1889, p. 421, pi. 33, fig. 18, and 1891, p. 34. 

 de Niceville, Butt, of India, iii. p. 272 (1890). Elwes, Proc. Zool. Soc. 1892, p. 632. Bethune- 

 Baker, Trans. Zool. Soc. 1903, p. 142. 



Imago. — Male. Above light, rather dull purplish-blue over about half of the 

 Forewing, the darker border wide in the Hindwliig ; below much like mirabella, but the 

 costal markings of the Forewing are absent, and the transverse discal band is composed 

 of spots, nearly annular on the Forewing and entirely so on the Hindwing ; the three 

 upper spots in the Forewing form a line outwardly oblique, the next two are united. 

 Hindwing with the three basal spots small and crowded together, the others large, 

 distinctly outlined with violet-white, that at the end of the cell irregular, produced 

 outwardly to a point in the lower median space as in A. duessa ; the transverse band 

 annular, nearly regular, composed of slightly united pairs, the middle pair out of line ; 

 a double line of obscure pale sub-marginal lunules on both wings : the species is some- 

 thing like the female of the preceding one {mirabella), but the blue is paler and more 

 lilacine ; it has no tail, and scarcely any lobe ; it has some resemblance to A. agesias, 

 from Borneo. (Doherty.) 



Expanse of wings, ^1^ inches. 



Habitat. — Myitta, Burma ; Margherita, Upper Assam. 



We have not seen this species, and have been unable to ascertain where the type 

 is ; the female is not described. 



2 D 2 



