MARGARONIA. 269 



should remain in a separate genus. His arrangement is as 

 follows : — Insecta Lepidoptera ; Sect. Nocturna ; Fam. 

 Botydcz ; Gen. Petropliila ; Spec, fluviatilis. 



'■^P. argenteo-nivea,fuscescente adumbrata, alarum superiorum 

 strigis apicalibus angulatis, punctulis duabus intermediis, 

 lineisque baseos tribus subcommunibus fuscescentibus ; alarum 

 inferiorum plaga postica argenteo-iridescente, atro-maculata ; 

 abdomine fusco fasciato." 



The report in the " Zoological Journal " is almost the same 

 as the above ; but the P^ditor objects to the name Petropliila, 

 as preoccupied in Botany. 



GENU.S MARGARONIA. {MargarouUdce.) 



Margarofiia, Hiibner, Verz. bek. Schmett. p. 358 (1826?); 



Walker, List Lepid. Ins. Brit. Mus. xviii. p. 518 (1859); 



Moore, Lepid. Ceylon, iii. p. 324 (1886). 

 Margarodes, Guenee, Spec. Gen. Lepid. Delt. et Pyr. p. 324 



(1854); Lederer, Wien. Ent. Mon. vii. p. 398 (1863); 



INIeyrick, Trans. Ent. Soc. Lond. 1854, p. 296, jwm. 



pI'CZOCC. 



This is a widely distributed genus, chiefly tropical or sub- 

 tropical, including rather long-winged species, of a pearly-white 

 or grass-green colour, with hardly any markings. 



MARGARONIA ARACHNEALIS. 

 ^.Plate CLIIL, Fii^^. 3.) 



Alargaronia arachncalis. Walker, List Lepid. Ins. Brit. Mus. 

 xviii. p. 527, no. 21 (1859). 



This Moth is found at Sierra Leone. 



" Very vivid green. Body beneath, and legs white or glau- 

 cous. Head white about the eyes. Palpi blackish toward the 

 tips, white beneath. Antenna pubescent. Abdomen with a 



