XXVU. 



ticular tracts. The gregarious habit of many of our native 

 plants is a very striking phenomenon, and in some parts of the 

 interior acquires very considerable magnitude. 



Ordinary Meeting, May 4, 1880. 



Professor Ralph Tate, President, in the Chair. 



The list of donations to the Library was read. 



The Hon. Secretary read the petition to Her Majesty the 

 Queen, praying that she would become patron of the Society, 

 and that it might be styled " The Royal Society of South 

 Australia." He also read the report of the Committee 

 appointed to draft regulations re organization and direction of 

 efforts of correspondents in natural history. 



NOTES AND EXHIBITS. 



Mr. Molineux produced some specimens of a large moth 

 (Cossus cmereus), together with the larva?, chrysalis, and silk- 

 lined tunnels, and said it came out at two different periods of 

 the year. In December one moth came out from the trunk of 

 the tree in an upward direction, and left a large hole, into 

 which the water found its way, rotting the tree and ultimately 

 bringing it down. The other moth came from the ground in 

 the roots in April and May. Coming out of the bole of the 

 tree, they made no nest or silk, but, issuing from the root, the 

 moth made a long chamber, of which he showed a sample. The 

 larvae and chrysalis existed in the tube for some considerable 

 time. He was of opinion that the two must be different kinds 

 of moths. 



The President expressed the opinion that the moths were of 

 two different species, and cited Mr. Tepper. 



Mr. Molineux said the nest made was of stiff clay. He had 

 found nests, one with a caterpillar and others with a chrysalis 

 inside. The chrysalis was often found near the top of the 

 chamber. 



There was a discussion, and Mr. Smeaton said he thought 

 the moth was the same as that described as the Zeuzera 

 eucalypti. 



Mr. P. Gr. "Waterhouse, C.M.Z.S., on behalf of the Governor 

 of the South Australian Institute, exhibited a number of fossil 

 bones recently obtained by Mr. R. M. Robertson at Salt Creek, 

 Yankalilla, comprising portions of skeleton of the Diprotodon 

 australis, including part of a lower jaw containing two incisors, 

 portion of lower jaw with three molars, portions of two very 

 large upper incisors, part of a rib, part of pelvis, two caudal 

 vertebra, two portions of tibia, two portions of femur. He 

 also exhibited a specimen of some remarkably rich auriferous 



