221 



ORDINARY MONTHLY MEETING. 

 30th June, 1920. 



Mr. J. J. Fletcher, M.A., B.Sc, President, in the chair. 



The President announced that a telegram had been received from the Koyal 

 Society of Tasmania wishing the Society a successful Macleay Centenary Meeting. 



A letter was read from Dr. L. A. Cotton, returning thanks for congratula- 

 tions on his attaining the Doctorate of Science. 



The Donations and Exchanges received since the previous Monthly Meeting 

 (2nth May, 1920), amounting to 8 Vols., 65 Parts or Nos., 20 Bulletins, 1 

 Report and .3 Panmhlets, etc., received from 41 Societies and Instihitinns and 3 

 private donors, were laid upon the table. 



NOTES AND EXHIBITS 



Mr. E. Cheel exhibited herbarium specimens, together with samples of timber 

 taken from two distinct forms of Callistemon viminalis (Sol.) Cheel, showing the 

 following distinctive characteristics : — 



(1) Calyx-tulii' glal)rous; bark of a thick corky appearance similar to that 



of the common "Broad-leaved Tea-Tree" {^lelaleiica leucadendrom var. 



albida Sieb. Cheel). (2) Calyx-tube silky-hairy; bark ni' a more or less 



fibrous nature. 



He also exhibited specimens of two forms or varieties of Ccdlistemon pachy- 



pliyllua Cheel, showing the following characters: — 



(1) Flowers of rich dark crimson similar to the type specimensv but the 

 lea\"es very narrow. (2) Flowers of a greenish-yellow colour and leaves 

 naii'ower than the type. The two latter forms are from Coff's Har- 

 bour, whilst the type is to be found at Bullahdelah, Byion Bay, and in 

 Queensland 

 Mr. G. A. Waterhouse exhibited a male Tisiphone rmcnsleyi, which he had 

 mated with a female Tisiphone abeotia, together with the five butterflies reared 

 from eggs laid by tlie female. The male T. rawnslei/i was reared from a larva 

 found at Mooloolah, Queensland, which pupated at Sydney on 9th September, 



1919, and emerged on 18th October, 1919; the female T. aheona from Sydney 

 emerged on 19th October, and the pairing took place the same day. The butter- 

 flies were placed in a mosc|uito net hung on a clothes line, and the actual mating 

 was observed, the female was then caged over a growing plant of swordgrass 

 (Gahnia sp?) and ten fertile eggs were laid on 20th and 21st October, which 

 emerged in 15 and 16 days. The young larvae were left undisturbed, the only 

 artificial condition being the surrounding wire of the cage. Early in February, 



1920, five pupae were found, and these produced three males and two females 

 from 21st to 29th Feln'uary, all being very similar in markings. Two further 

 snatings of. these first generation hyln'ids were obtained and the young second 

 generation larvae are now under observation. As seen from the specimens ex- 

 hibited the first generation hybrids combine the characters of both parents, the 

 broad orange band of the forewing of aheona being very much reduced in size and 

 much paler in colour. When it was neeessaiy to keep the specimens alive for 

 more than a day, they were artificially fed with a mixture of honey and water. 

 He also exhibited for comparison a series of Tisiphone aheona from Eastern 

 Australia showing the northern and southern forms and the wonderful variation 

 existing at Port Macquarie. 



