166 



of the Australian States, to represent them in a study of methods 

 in economic entomology employed all over the world and prin- 

 cipally upon means of subduing fruit-fly pests. 



SEPTEMBER 5th, 1907. 



The thirty-second regular meeting of the Society was held in 

 the Library of the Sugar Planters' Experiment Station, Mr. 

 Giffard in the Chair. 



NOTES AND EXHIBITIONS. 



Mr. Swezey exhibited a specimen of the wasp, Pison iridipennis 

 Smith. He had observed this species very abundant at the Ex- 

 periment Station H. S. P. A. this summer; whereas, he had not 

 previously seen it on the island of Oahu. He had taken a few 

 specimens on Maui, in 1906.* He was of the opinion that it 

 must have recently rapidly increased in abundance. 



Mr. Giffard exhibited several boxes of Cicindelidae and Ceram- 

 bycidae, part of a large collection of North American (principally 

 western) beetles he had purchased on the mainland. The collec- 

 tion contained about 8000 specimens, and 4000 species, deter- 

 mined by various specialists. 



PAPERS READ. 



Some Experiments in Breeding Spodoptera mauritia Boisd. 

 for Color Variation. 



BY OTTO H. SWEZEY. 



A gravid female caught and placed in a breeding jar, October 

 15, 1906, deposited during the night 380 eggs on the cloth cover- 

 ing the breeding jar. The fact that there is somewhat of varia- 

 tion in shade of color in this species of moth, suggested the idea 

 that here was a good opportunity to try some breeding experi- 

 ments with color variation. These eggs hatched Oct. 20; about 

 100 attained full-growth and entered soil to pupate Nov. 10-15; 

 80 moths (43 males and 37 females) emerged Nov. 19 to Dec. 5. 



* Later in September, found very abundant at Koloa, Kauai. Hence, 

 is apparently well distributed in the group, altho I have found no records 

 of it on Hawaii. CO. H. S.) 



