BY E. MEYRICK. 861 



streak ; an irregular fuscous subterminal streak, angularly 

 indented outwards in middle ; a fuscous hindmarginal line ; cilia 

 white, somewhat sprinkled with pale fuscous, with a fuscous spot 

 at anal angle. 



Carnarvon, West Australia, in October ; two specimens. 



17. AcoDiA, Ros. 



Face with cone of scales. Palpi moderate, porrected, rough- 

 scaled. Antennae in ^ bipectinated throughout. Posterior tibiee 

 with all spurs present. Forewings with veins 6 and 7 stalked or 

 closely approximated from angle of cell, separate from 8, 8 out of 

 9, 10 and 11 out of 9, no areole. Hindwings with veins 6 and 7 

 stalked. 



Includes the one species only. On first consideration the 

 neuration appears quite abnormal ; in reality the origin of the 

 veins is essentially as usual, but that portion of vein 9 which 

 extends from 7 to the upper angle of the areole, thus forming the 

 posterior margin of the areole, is absent through non-development. 

 This structure is constant, and although it seems an unexpected 

 form of modification, it occurs again {quite independently) in the 

 European genus Mesotype, and as an abnormal individual variation 

 (also quite independently) in Hydrioinena phaedra, as noted above. 

 Probably there is some unappreciated physiological reason for this 

 tendency in this group ; the three instances quoted have certainly 

 no near genetic affinity. The present genus is undoubtedly a 

 simple offshoot of Xanthorhoe. 



76. Acod. pauper, Ros. 



( Acodia pauper, Ros., Ann. Mag. N.H. 1885, 434, pi. xi, 7.) 

 (J$. 25-31 mm. Head and thorax pale ochreous, sprinkled 

 with dark fuscous, often suff"used with dull reddish. Palpi 2|^, 

 dark fuscous, towards base whitish beneath. AntenmB dark 

 fuscous spotted with whitish, pectinations in ^ long (a 6, h 8), 

 Forewings triangular, hindmargin waved, bowed, rather strongly 

 oblique ; pale ochreous, often more or less wholly suffused with 



