478 



soil, where they pupate. Larvae and pupae perish if immersed in 

 water for four or five days. The fruit should be covered with at least 

 two inches of water for five days, and can then be ploughed in for 

 manure if desired without danger of an}' flies hatching. 



Aliout 20 individuals of the Braconid parasite, Diachasma tryoni. 

 Cam., were liberated successfuUy. Opins tryoni, Cam., may be observed 

 on warm days flying round and alighting on infested fruit. It can only 

 reach the larvae when they are close underneath the skin, which is 

 when they are full grown and on their way out of the fruit, or when 

 they are approaching the surface in breathing. Owing to the lateness 

 of the season and the almost entire absence of fruit, trapping 

 experiments in fields no longer gave good results. 



Larvae of Syrphus viridiceps, Macq., and 5. pusillus, Frog., were 

 extremely useful in destroying the woolly apple aphis, Eriosoma 

 {Schizoneura) lanigerum. Unfortunately these flies are parasitised by 

 a small Braconid. The larvae found in tomato have proved to be, as 

 was anticipated, those of LoncJiaea splendida [loc. cit.]. 



\ Pettit (R. H.). Grasshopper Bait and Kedzie Mixtme.— Qtrly. Bidl. 

 Michigan Agric. Expt. Sta., East Lansing, iv, no. 4, May 1922, 

 pp. 141-142. 



As white arsenic becomes lumpy after storing for some time, and 

 therefore unsuitable for grasshopper baits, it is suggested that it should 

 be used for the preparation of Kedzie mixture, for which the following 

 instructions are quoted from the late Dr. R. C. Kedzie. 



Complete solution of the arsenic is insured by boihng 2 lb. with 8 lb. 

 of carbonate of soda in 2 U.S. gals, of water for 15 minutes. This 

 may be kept as a stock solution. For spraying, 2 lb. of slaked stone 

 or lump lime added to 40 U.S. gals, of water must be mixed with 

 every U.S. quart of stock solution. The arsenic in this mixture is 

 equal to 8 oz. of Paris green. This mixture cannot be combined with 

 lime-sulphur, but may be satisfactorily used with Bordeaux. It should 

 only be used for potatoes, as it is apt to cause delayed scorching on 

 fruit. 



McDaniel (E.). Cloth Woihs.— Qtrly. Bull. Michigan Agric. Expt. 

 Sta., East Lansing, iv, no. 4, May 1922, pp. 143-144. 



A brief account is given of the various ways of protecting household 

 articles and clothing from infestation by clothes moths [R.A.E., 

 A, ix, 483]. 



Weld (L. H.). U.S. Bur. Ent. Notes on American Gallflies oJ the 

 Family Cynipidae producing Galls on Acorns, with Descriptions o£ 

 New Species. — Proc. U.S. Nat. Mus., Washington, D.C., Ixi, 

 art. 19, no. 2440, 1922, 32 pp., 5 plates, 3 figs. 



Twelve new species of American gallflies are described, with a 

 synopsis of the galls and keys for the determination of the adults. 



Weld (L. H.). U.S. Bur. Ent. Notes on Cynipid Wasps, with 

 Descriptions of New North American Species. — Proc. U.S.Nat. Mus. 

 Washington, B.C., Ixi, art. 18, no. 2439, 1922, 29 pp., 1 plate, 

 3 figs. 



Miscellaneous notes are given on several species of both parasitic 

 and gall-inhal)iting Cynipids, and six new species are described. 



