NOTES AND EXHIBITS. 249 



Mr. A. Sidney Olliff exhibited (1) two species of a small fly 

 (Diplosis sppj, recently bred at the Department of Agriculture 

 by Dr. Cobb and himself from larvae found feeding on rust 

 (Puccinia) on peach and sunflowers ; (2) a drawing of a larva of 

 one of these flies, illustrating the anatomy of the animal, and 

 exhibiting the embryo and larva of an internal parasite, apparently 

 belonging to the Hymenoptera ; and (3) specimens of a dipteron 

 (Tachina sp.), a parasite of the plague locust, Pachytylus australis, 

 Br., which is allied to the recently-discovered Masicera pachytylis 

 Sk. 



Mr. P. N. Trebeck showed some insects collected at North 

 Sydney. 



Mr. Henry Deane exhibited a fine specimen of Ophideres 

 saliminia, Cr., from Casino, a moth which enlarges, by means of 

 its auger-like proboscis, the holes made by fruit-flies, &c, in the 

 rind of oranges and bananas. 



Mr. Deane also stated that last month, while travelling by night 

 through the Big Scrub in the Richmond River District, his interest 

 was aroused by the remarkable effect produced by luminous insects 

 which abounded by the roadside. Specimens were secured and 

 sent off in the hope that they would arrive in time to be exhibited 

 at last month's meeting, but they came a day too late, and in the 

 meanwhile have died. From their general resemblance to the 

 larvae of Ceroplatus mastersi, Sk., which are also phosphorescent, 

 Mr. Fletcher, who had seen the specimens forwarded, was of the 

 opinion that these were very probably also dipterous larvae. 



Mr. David made some remarks on certain luminous organisms 

 which he had observed in old coal mine workings in Illawarra, the 

 identification of which it was hoped would not long be postponed. 



