436 



it probably feeds, as it does not appear to be injurious in the cane 

 fields. The larval stage of this wasp requires about 4| days, and 

 the pupal stage during August and September was about 23 days, 

 making the life-cycle from egg to adult about one month. 



Williams (F. X.). Some Observations on the Leaf-hopper Wasp, 

 Nesomimesa hauaiiensis, Perkins, at Pahala, Hawaii, Feb. 11- 

 April 25, 1918. — Proc. Haivaiian Entom. Soc, Honohilu, iv, no. 1, 

 June 1919, pp. 63-68, 3 figs. 



The hunting and nesting habits of Nesomimesa hawaiiensis, Perk., 

 are described. This wasp has not been found below an elevation of 

 about 1,000 feet, but is met as high up as 3,500 feet. Its chief prey 

 is the sugar-cane leaf -hopper, Perkinsiella saccharicida, Kirk., and 

 it may prove very useful in controlling this pest, as one female may 

 capture as many as 100 hoppers and cloudy weather, or even rain, 

 does not apparently affect its activity. 



Williams (F. X.). Some Observations on Pipunculus Flies which 

 parasitize the Cane Leaf-hopper, at Pahala, Hawaii, Feb. 11-April 

 25, 1918. — Proc. Hmvaiian Entom. Soc, Honolulu, iv, no. 1, June 

 1919, pp. 68-71, 1 fig. 



The habits of some Pipunculid flies, including Pipunculus juvator, 

 Perk., P. hawaiiensis, Perk., and an undescribed species, are recorded. 

 These flies have transferred their attention from native leaf-hoppers 

 to the sugar-cane leaf-hopper [Perkinsiella saccharicida]. When the 

 prey is secured, young or half-grown individuals being preferred, it 

 is born up in to the air and an egg is deposited on it, after which 

 the host is dropped, apparently unhurt. The egg and larval stage 

 of the parasite extend over approximately 40 days. The mature 

 grubs kiU the already sluggish host as they emerge ; after emergence 

 they very soon pupate, this stage lasting from 28 to 34 days in 

 February and March. The pupa may frequently be found at the base 

 of, or on sugar-cane leaves. 



Bridwell (J. C). Miscellaneous Notes on Hymenoptera with 

 Descriptions of New Genera and Species. — Proc. Haivaiian Entom. 

 Soc. Honolulu, iv, no. 1, June 1919, pp. 109-165. 



The large number of Hymenoptera here described include the 

 Ichneumonid, Ambly teles koebelei, Swez., attacking cutworms, and the 

 Braconid, Microbracon j)emhertoni, sp. n., bred from Pectinopliora 

 gossypiella, Myelois ceratoniae and Cryptophlehia iUepida. 



Bridwell (J. C). Descriptions of New Species of Hymenopterous 

 Parasites of Muscoid Diptera with Notes on their Habits.— Proc. 

 Hawaiian Entom. Soc, Honolidu, iv, no. 1, June 1919, pp. 166- 

 179. 



The new species described include : Ichneumonidae : Afractodes 

 muiri from Sarcophaga sp. living in decaying fish in Japan ; A. mallyi 

 from Sarcophaga sp. in human excrement in South Africa. 



