136 THE VICTORIAN NATUftAtilST. 



marked, in ten others it is reduced to one spot on each wing, 

 while in the remaining four there is one spot on one wing and 

 two on the other. Eleven males out of sixteen have the one 

 spot only near the angle of each wing, another has one on the 

 left and two on the right wing, two have two on each, and two 

 more have two on one and three on the other wing. Otherwise 

 there seems to be little variation. 



This butterfly emerges usually in the forenoon, develops in 

 about twenty minutes, and is ready for flight in an hour or so. 

 Of those reared this season the majority emerged during October, 

 the extreme dates being 27th August and 9th November. — W. 

 H. F. Hill. 



NOTES ON THE NESTING OF GALYPTOKHYNCHUS 

 BANKiSI AND ERYTHRODRYAS ROSEA. 



By Alfred J. North, F.L.S. (Ornithologist to the Australian 



Museum, Sydney). 



I. — Calyptorhynchus Banksl 



Psittacus Banksii, Lath., Ind. Orn., p. 107 (1790). 



Calyptorhynchus Banksi, Vig. and Horsf., Trans. Linn. Soc, vol. 



XV., p. 271 (1826) ; Ramsay, Cat. 

 Psittaci, p. 17 (1891); Salvad., Cat. Bds. Brit. Mus., vol. xx., p. 



109 (1891). 

 The range of Banks's Black Cockatoo extends from the neigh- 

 bourhood of Cairns, in north-eastern Queensland, throughout the 

 whole of New South Wales and most parts of Victoria. In North 

 Australia it is represented by a slightly smaller and scarcely 

 separable race, known as C. macrorhyoichus, and in Central and 

 Western Australia by a closely allied but specifically distinct species 

 called C stellatus. I can testify to the accuracy of Gould's 

 remarks relative to the amount of caution required to approach 

 C. Banksi, while at other times, especially when feeding, it can 

 be easily accomplished. Near Ballarat, in Victoria, and in the 

 Illawarra district of New South Wales, I found this species 

 unusually wary, keeping to the tops of the tallest Eucalypti, and 

 seldom coming within shooting range. But when the heavily 

 timber-clad ranges of South Gippsland, in Victoria, were first 

 settled upon by selectors, I have frequently stood under a dead. 

 Acacia while several of these birds have been busily engaged in 

 searching the branches for the larvae of insects, not more than 

 forty feet above my head. Especially was this fact observable 

 durmg a thick drizzling rain. Probably by this time they have 

 learned to shun the presence of man, if they have not been 

 wholly extirpated or driven away, as many other species have 

 been, since that district was denuded to a large extent of its 

 primeval forest. 



When in Melbourne last year I had an opportunity of ex- 

 amining the rare egg of this species in the collection of our 



