150 NOTES AND EXHIBITS. 



NOTES AND EXHIBITS. 



Mr. Skuse exhibited a collection of the Diptera described in his 

 paper. 



Mr. North exhibited the eggs referred to in his paper. 



Mr. A. Sidney Olliff said he wished to call the attention of the 

 members to the extraordinary abundance of Belostoma indicum, 

 St. Farg. & Serv., (specimens of which he exhibited), a gigantic 

 * water-scorpion ' belonging to the family Naacoridse. The insect 

 had appeared in such numbers during the last few months in 

 various parts of Sydney, that it attracted the attention of even 

 the most unobservant. It was most frequently observed in well- 

 lit places in the city, light evidently having a great attraction for 

 it. Early in November as many as twenty had been picked up 

 under one of the electric lamps at the Circular Quay, where they 

 had fallen half-stunned after their vain efforts at suicide in the 

 light above. Mr. Olliff also stated that lepidoptera were attracted 

 by the electric light, although not in such numbers as by the 

 ordinary gaslight ; he had himself obtained Danima Banksice, 

 Lw., Spilosoma fulvo-hirta, W., Heliothris armiger, Hub., and 

 Idiocies apicata, Gn., during an hour's searching at the electric 

 lamps on one of the shipping wharves at Darling Harbour. 



Mr. J. Mitchell exhibited (a) the Trilobites from Bowning 

 described by him in a paper read at the Society's meeting in July 

 last (Proc. 1887, p. 435), (b) specimens of a new species of Acidaspis 

 to be described at a future meeting, and (c) specimens of two or 

 perhaps three species of Graptolites from the Bowning Beds at 

 Bowning and Bell Vale, found since the exhibition of the some- 

 what less satisfactory specimens previously brought under 

 the notice of the Society (Proc. 1886, p. 577), which, it may 

 be remembered, were the first recorded from N.S.W. 



