268 REVISION OF AUSTRALIAN TORTBICINA, 



shows the normal structure of the antennae, which is character- 

 istic, the dentations being very strong. There are three possible 

 interpretations of this recorded observation, viz.: 



(1.) The larval habit recorded is tha,t oi A . lividaiia : against 

 this may be set the repeatedly observed fact that the imago is 

 attached to Banksia, from which I have habitually beaten it, 

 this being recorded in my diary, and that the allied species are 

 all equally attached to Banksia, implying community of habit; 

 whilst the other bred species of the genus are known to feed 

 on Banksia and its allies, and their larvee are quite normal in 

 structure. The larva described above is altogether singular, and 

 I know nothing approaching it. 



(2.) The larva described is that of some other species unknown, 

 and the larva of A. Uvidana was introduced accidentally with 

 the foodplant without being observed; as only one was bred, this 

 is conceivable, but it does not seem at all likely. I always kept 

 each kind of larva in a .small separate receptacle. 



(3.) Two species are confused under the name of A. lividaua, 

 one feeding as described, the other being a Banksia-ie&diGv; this 

 explanation derives some support from the variation in the speci- 

 mens, but involves the improbable supposition that two species 

 so closely allied as to be practically indistinguishable have larvae 

 so divergent in structure. 



For myself, I can only say of the above explanations that all 



three seem to me nearly equally improbable. I fully expected 



some specially interesting insect from these curious larvae, and 



was much disappointed to rear a common Tortricid of which I 



had regarded the habits as practically already known. If obliged 



to choose one of the three explanations, I should select the 



second. 



247. A. atimana Meyr. 



{Arotrophora atimana Meyr., Proc. Linn. Soc. N. S. Wales, 

 1881, 533.) 



Q.: Brisbane(Turner) — N.S.W.: Sydney; in August, September, 

 And January. A small thoracic crest is present in this species. 



