-64 DESCRIPTIONS OF AUSTRALASIAN MICKO-LEPIDOPTERA, XIX., 



56. M. polypJaca Low. 



{Gracilaria polyplaca Low., Trans. Eoy. Soc. S. Austr. 189-1:, 

 112; Turn., Trans. Roy. Soc. S. Austr. 1900, 20.) 



Duaringa and Brisbane, Queensland, from August to Decem- 

 ber, and in April. Attached apparently to Tristania conferta 

 And 1\ snaveohns. 



57. M. ida Meyr. 



[Gracilaria ida Meyr., Proc. Linn. Soc. N. S.Wales, 18S0, 155.) 

 Brisbane, Queensland; Glen Innes and Sydne}^ New South 

 Wales; Melbourne, Victoria; Albany, West Australia; from July 

 to March. Larva mining leaves of Eucalyptus piperita (?). 



7. Gracilaria Hw. 



Head with appressed scales; tongue developed. Antenna? 1 or 

 over 1, in (J filiform, basal joint without pec ten. Labial palpi 

 long, curved, ascending, smooth or sometimes partl}^ or wlioll}' 

 rough-scaled anteriorly or with tuft uf projecting scales on second 

 joint, terminal joint about as long as second, more or less pointed. 

 Maxillary palpi moderate, tilifoim, porrected. Middle tibiie 

 thickened and expanded with rough scales beneath, posterior 

 tibi?e with appressed scales. Forewings with ]b simple, 2 from 

 about |-, 3 sometimes absent, 4 and 5 often approximated, 7 to 

 costa, 1 1 from before middle or near base, secondary cell some- 

 times well defined. Hind wings about i, lanceolate or linear- 

 lanceolate, cilia 4-6; 3 sometimes absent, trans^■erse vein absent 

 between 4 and 5, 5 and 6 stalked, their stalk often continued to 

 base of wing, 7 from angle of cell or rarely out of 6. 



Type G. alchimiella Sc, from Europe Stud}^ of increased 

 material from various regions has convinced me that Coriscium Z,, 

 cannot be maintained as a distinct or natural genus, the .scaling 

 of the palpi being subject to much variation, and not according 

 with true affinity. On the other hand, I liave found it practic- 

 able to use the .scaling of the legs to break up the whole of the 

 species thus thrown together into four groups which are both 

 natural and strictly definable, and since the number of species 



