ZOl' ON TWENTY NEW SPECIES OF AUSTRALIAN LEPIDOPTERA, 



Group GEOMETRINA, Family GEOMETRID^. 

 lODIS COMMODA, Sp.UOV. 



(J. 29 mm. Head purple-grey, face purple shading into car- 

 mine, fillet ochreous, postorbital rims ochreous-white. Collar 

 narrow, crimson. Palpi crimson-grey, terminal joint short. 

 Antennae creamy grey, pectinations grey. Thorax greyish-blue- 

 green, with a dorsal ochreous colour streak in posterior two- 

 thirds, undersurface white. Abdomen greyish-blue-green, with 

 an ochreous dorsal streak, sides and apex white. Anterior and 

 middle legs reddish-carmine, pink-white beneath, posterior pair 

 creamy-grey. Forewings with costa straight, gently arched before 

 apex, hindraargin oblique, scarcely rounded, greyish-blue-green ; 

 costa at base carmine, thence shaded into light ochreous, which 

 colour forms a gradually-narrowing line to apex ; a light ochreous 

 line from ^ inner margin obliquely for one-third the width of 

 wing, and parallel to a second line of same colour, from ^ inner 

 margin to costa just before apex, becoming fainter towards costa, 

 line slightly waved, but scarcely dentate ; an indistinct blue-grey 

 discal spot midway between termination of first line and costa at 

 ^ : cilia light ochreous. Hindwings as forewings, very slightly 

 angled at vein 4, a dentate circular line from opposite costa at |^ 

 to opposite h inner margin ; first line indistinctly defined at f 

 costa, rapidly shading into ground-colour ; cilia as forewings. 



Brisbane ; one specimen. 



Allied to /. assimilis, Luc, and /. dichloraria, Gn. 



lODIS NITIDA, Sp.nOV. 



Q. 29 mm. Head gi'een, becoming white on face. Palpi (1). 

 Antennae annulated white and green. Thorax green, snow-white 

 anteriorly, patagia green. Alxlomen green (^shaded with white). 

 Forewings : costa gently rounded, hindmargin obliquely rounded, 

 bright pea-green, or rather a delicate yellow-green with ochreous 

 white lines ; costa broadly banded with snow-white, which narrows 

 to a line at ^ costa, is there tinted with purple to | costa, and 



