109 



adults emerge in about a week. The life-cycle thus being very 

 short — about 14 days. 



Bracon sp. — I reared six of this parasite from cocoons of 

 Batrachedra cuniculator Busck, a leaf-minor in sedges in the 

 Kewalo swamps of Honolulu, in May, 1914. It was not pre- 

 viously observed here. Its larva feeds externally, one per host, 

 and makes its cocoon in the mine of the latter. 



Hahrohracon hehetor (Say). — This is the abundant para- 

 site on the meal and flour moths, Plodia interpimdella and 

 Ephestia elutella. It is often to be found in large numbers in 

 the feed warehouses in Honolulu. From 1 to 8 eggs are laid 

 externally on the host caterpillar; they hatch in about a day, 

 and the larvae get their grow^th in three days, spin cocoons and 

 the adults emerge in about a week, so that the whole life-cycle 

 occupies but two weeks. The shortness of the life-cycle allows 

 for such frequent generations it is often very effective in con- 

 trolling the flour moths. 



Bracon sp. ? — I have reared an undetermined Braconid from 

 the sedge stem-borer Bactra straminea (Butl.). 



Bracon sp. — Reared from Gelechia gossypiella by Mr. Ful- 

 lawav. 



JANUARY 7th, 1915. 



The one hundred-thirteenth regular meeting of the Society 

 was held in the usual place. President Ehrhorn in the chair. 

 Other members present : Messrs. Fullaway, Illingworth, Kulms, 

 Mant, Muir, Osborn, and Swezey. 



Minutes of previous meeting read and approved. 



EXTO:S[OLOGICAL PROGRAM. 



Mr. Swezey reported having found a wasp, PoUstes aurifer, 

 with a nest but recently started, on the under side of a stone 

 lying on top of the ground at Diamond Head, January 1st. It 

 being the earliest date at which he had observed these wasps 

 beffinninff their nests. Mr. Ehrhorn stated that he had noticed 

 a nest at the Outrigger Club about three weeks previously. 



Mr. Osborn exhibited 28 specimens of Halohates sp. which 

 were collected on the beach at Waikiki, Dec. 19, 1914. Large 

 numbers of these bugs, mostly adults, were blown ashore during 



