870 REVISION OF AUSTRALIAN LEPIDOPTERA, 



Brisbane, Queensland ; two specimens received from Dr. Lucas. 

 I may repeat here what I have noted elsewhere, that in the case 

 of this and all other species quoted by Walker as from " Swan 

 River, Mr. Diggles' collection" some mistake was made, as all 

 these species appear to be really from Queensland, where Mr. 

 Diggles principally collected, , 



9. loDis, Hb. 



Face smooth. Antennse in ^ bipectinated, towards apex 

 simple. Palpi short or moderate, second joint loosely scaled or 

 shortly rough-scaled beneath, terminal joint short or moderately 

 long, porrected. Thorax sometimes hairy beneath. Posterior 

 tibige in ^ often thickened and grooved, with pencil of hairs in 

 groove, all spurs present. Abdomen in ^ with uncus simple, with 

 basal process beneath. Forewings with veins 3 and 4 stalked or 

 separate, 6 out of 9 or separate, 10 out of 9, 11 free or anasto- 

 mosing with 12 and sometimes with 10 also, rarely running into 

 12. Hindwings with veins 3 and 4 separate or stalked, 6 and 7 

 stalked. 



After examination of a large quantity of material, I i»nd it 

 necessary to include in the single genus lodis a variety of forms 

 classed by Guenee and others as several distinct genei-a (Thalas- 

 sodes, Phorodesma, Chlorochroma, Chlorodes, Comihaena). This 

 is not for want of structural differences, for there is abundance of 

 variation in the neuration and form of the palpi, but it is im- 

 possible to make use of it to advantage ; the characters seem 

 inconstant, being liable to frequent variation within the limits of 

 the same species, and in their normal form diflfer more or less in 

 evexy species, even the most closely-allied. I have consequently 

 classed all together, i-egarding the structural variation as specific 

 only ; as such, it is described in each case under the specific 

 chai'acters. The genus in its extended sense will be rather large, 

 but not excessively, probably containing some 200 species ; 

 apparently cosmopolitan (except New Zealand), but principally 

 characteristic of the Indo-Malayan and Australian regions. 



