26 



INSECTS OF SAMOA. 



10 (a). Hypolimnas bolina inconstans Fruhst. 



Hypolimnas bolina inconstans ; Fruhstorfer, 1912, p. 552. 

 Hypolimnas bolina var. otalieitae ; Fraser, p. 147. 



Hudson, p. 105. 

 Hypolimnas bolina ; Waterhouse, 1904, p. 493. 



Swezey, 1921, p. 603. 

 Diadema montrouzieri ; Schmeltz, p. 185. 



Swezey, 1921, p. 602. 

 Hypolimnas bolina montrouzieri ; Rebel, 1910, p. 418. 



Fruhstorfer records this form as inconstans Butler, and quotes part of 

 Rebel's description of female specimens from near Apia ; Butler, however, used 

 the name inconstans for an Australian form of Argynnis hyperbius (the type of 

 which is in the British Museum), and not for any form of H. bolina, so that the 

 present race becomes H. bolina inconstans Fruhst., with no type. 



Rebel's full description is as follows : " The Samoan race appears to con- 

 stitute a well-differentiated local form, which is at once separated from the 

 very variable Fijian form (octocula Butl.) by the smaller size and constant dark 

 coloration. The white semi-fascia of the forewings and the white sub-apical 

 spots, together with the wavy line of dots which joins them, always remain 

 conspicuous. The longitudinal orange patch in cell lb varies somewhat in 

 extent, but never reaches the base nor the middle of the wing, and only seldom 

 extends back to the line of dots. In two specimens this orange mark on the 

 inner border is much obscured. The hindwings show a bluish-white round 

 blotch in the centre, which sometimes narrows band-like and appears pure white 

 on the inner side. Forewings 29-34 mm." Fruhstorfer 's description of the 

 form omits mention of the orange patch ; it appears to be the smallest known 

 form of //. bolina. The female illustrated (PI. I, fig. 2) is from the type 

 locality, Apia. 



The male (PI. I, fig. l) is undescribed ; it differs from that of other 

 races chiefly in its smaller size ; the white discal spots on the upperside are 

 small and much obscured by blue scaling, and the white discal band of the 

 hind wing underside is much reduced, but the other underside markings are 

 clear and well-defined. In a series of six males the maximum, mean, and 

 minimum expanse are 68, 62, and 56 mm. Neallotype male from Apia, 

 November 1924 ; paratypes from Mulifanua, April 1924, Apia neighbourhood, 



