473 



Rosa, Swezey, Wilder, and Willard, with Mr. L. A. Whitney, 

 visitor. 



The minutes of the previous meeting were read and ap- 

 proved with a few minor corrections. 



Air. Ehrhorn brought up for the consideration of the So- 

 ciety whether the Coccid, Antonina austratis, brought back from 

 Australia by Mr. Muir, should be liberated. Mr. Muir stated 

 that he had observed a iield of sugar cane in ratoon in which 

 the Antonina had killed 90 per cent of the nutgrass and pre- 

 vented it from flowering. He had also observed that the 

 nutgrass in cane fields is all seedling and that as soon as it 

 forms corms the Coccid begins to multiply and gradually kills 

 it off. Mr. Muir further stated that he had never found it on 

 sugar cane, but had found it on various grasses and other 

 Cyperaceae. On the other hand, he had observed that the nut- 

 grass is quite as bad in Australia as in Hawaii. Mr. Gififard 

 also mentioned that the Antonina was recorded on bufifalo 

 grass, which is a valuable forage grass in Hawaii. The ques- 

 tion was laid over for further discussion. Mr. Muir stated 

 further that the species on grass brought from Australia is 

 distinct from the one on nutgrass. 



NOTES AND EXHIBITIONS. 



Thoracapliis fici. — Mr. Ehrhorn mentioned that this aphid on 

 Ficiis had been known previously and was collected by Dr. 

 Perkins some ten years ago. 



Amhlychila baroni. — Mr. Giffard exhibited a specimen of 

 this tiger beetle taken in the Huachuca Mountains, Arizona, 

 which he was presenting to the H. S. P. A. collection to take 

 the place of the type specimen turned over to the California 

 Academy of Sciences from the Baron and Harford collection. 

 He also spoke of the rarity of this species in collections, and 

 read a few extracts from the writings of Walther Horn con- 

 cerning the latter's quest for it. 



Corixid from Queensland. — Mr. Muir exhibited specimens 

 of a Corixid which he had collected in North Queensland. He 

 stated that this species is interesting in that it kept down all 



