18S3. 15 



detnning Walker's Crambus impletellus, coming from Tasmania, whilst 

 C. pleniferellus is from Sydney, I ought to have believed its slight 

 difFerences of pattern (or, rather, the additions in the pattern of the 

 primaries) to be constant until the reverse had been proved. 



With regard to Concliylis ? avriceps, which Mr. Meyrick asserts 

 to be allied to Pltilohota Arabella, and concerning the neuration of 

 which he can speak confidently without examination, I may say that 

 I have just examined it again in conjunction with P. Arabella, and 

 that differences in neuration (such as the distance between the emis- 

 sion of the subcostal branches and the direction and angulation of the 

 discocellulars) do exist between them, and that the " other respects " 

 which I put first (such as the form of wing and fringing) are similar 

 to those of ConcJiylis margaritana, and not P. Arabella ; nevertheless, 

 our specimen being (as I stated in my description) an imperfect one, 

 I may repeat the words there used : — " I cannut be positive of the 

 correctness of its generic location." 



Of C. Thetis it is possible that the collector may have sent Mr. 

 Meyrick examples, but it is just as likely (in the case of a type of 

 coloration frequent in the Micro-Lepidoptera') that either he, or even 

 Meyrick himself, may have failed to recognise my species, in which case 

 the synonymy will not be burdened ; whereas, if the contrary be the 

 truth, it will argue that my descriptions are easier to recognise than 

 those of my critic, for I certainly went through his papers with each 

 Melbourne specimen before I decided it to be new, and that, too, with 

 an effort to obtain an identification if possible, which would have 

 gratified the author had he seen it. 



British Museum : May, 1883. 



Influence of colour on Insects. — The following extract from the recently pub- 

 lished 2nd part of vol. i of " Timehri," the Journal of the Eojal Agricultui'al 

 and Commercial Society of British Guiana," so ably edited by Mr. E. F. im Thum, 

 may be of interest to our readers. It occurs in an account of a visit to Mount 

 Kussell in Guiana, by the editor (p. 223) : — 



" That afternoon the Indians of the place, seeing our interest in catching butter- 

 flies, exhibited various clever ways of entrapping these insects. To catch those of 

 yellow hue, they picked and laid on the ground the flowers of a yellow Bignonia 

 {B. chicled) ; and this proved a most successful plan. Equally successful were they 

 when ttey laid decaying banana-skins on the ground to attract the large blue 

 Morphos ; but an attempt to attract certain red species by displaying the ripe red 



