52 



DESCRIPTIONS OF NEW SPECIES OF AUSTRALIAN 

 RIIOPALOCERA. 



By G. A. Waterhouse, B.Sc, B.E. 



(Plate i.) 



Ogyris ianthis, sp.nov. 



(Plate i., figs. 1-4.) 



(J. 36 mm. Head fuscous; palpi fuscous-grey; antennae fuscous, 

 becoming fuscous-red at their distal ends, slightly lighter on the 

 underside and faintly annulated with white; thorax black, with 

 long grey hairs at the sides. 



Abdomen.— Upperside purplish-fuscous, underside fuscous-gre}\ 



Upperside. — Light silvery electric blue margined with blackish- 

 fuscous. 



Anterior wing. — A band bounded by the costa and subcostal 

 vein blackish-fuscous, beginning from the base of the wing and 

 extending to the apex, where it is widest, thence along the term en 

 or outer margin gradually decreasing in width until the inner 

 margin or dorsum is reached, where the band ends. The 

 remainder of the wing is light electric blue, which changes when 

 the insect is moved, as in the case of the South American Morphos. 

 The veins are lightly coloured with black, the one bounding the 

 distal end of cell being markedly so. 



Posterior wing. —Colours similarly placed to anterior wing. 

 As before, a blackish-fuscous band beginning at the base, extend- 

 ing along the costa to the apex; here the band narrows consider- 

 ably along the termen, and is irregular, extending further into 

 the wing between the veins, and being prolonged outwards along 

 the veins, thus giving the termen a slightly serrated appearance. 



