227 



FAMILY COSSONIDAE. 



JleterampJuis n. sp. — I found tlie larvae of this s])ecies 

 mining the fronds of several species of Elaplioglossum on Mt. 

 Olympus and the upper part of Palolo Valley, Oahu. Larvae, 

 pupae and adults were found in the mines. The larvae of the 

 other species of Het-eramphus, whose habits are known, are found 

 in the stems of tree ferns, and at the base of leaves and in 

 stems of Astella. 



OCTOBER 3rd, 1912. 



The eighty-seventh regular meeting of the Soeiety was held 

 in the usual place. 



ENTOMOLOGICAL PROGRAM. 



Mr. Swezey exhibited some sugar cane mealybugs, calling 

 special attention to a species first noticed by Mr. Erhorn, and 

 which makes three species now known to attack sugar cane in the 

 Hawaiian Islands. 



Mr. Giffard remarked on the apparent diminishing of the 

 numbers of ants recently, and inquired if others had noticed it. 

 Different members gave their observations on the question, some 

 of which agreed with the observations of Mr. Giffard while 

 others reported the usual abundance. The apparent scarcity 

 was evidently local and due to some temporary, or unusual con- 

 ditions. 



Mr. Muir exhibited specimens of leaf hoppers representing 

 four new genera and eight new species. These were collected 

 by him on sugar cane in China and the Malay Islands. 



NOVEMBER ITtii, 1912. 



The eighty-eighth regular meeting of the Society was held in 

 the usual place. 



Dr. E. A. Back was elected to active membership. 



NOTES AND EXHIBITIONS. 



Mr. Giffard reported that on a recent trip to ]\raui, he found 



