191 



bv the Braconid, Ajmnteles glomeratus. The number of parasitic 

 larvae present in one caterpillar is often as many as 50 to 60, even 

 80 having been known to emerge from a single host. Opinion is 

 divided as to the time of attack by the parasite. Some observers 

 think that oviposition takes place on the larvae, others in the egg. 

 A similar divergence of opinion exists as to the time of emergence 

 of the parasite, some authorities stating that they issue from the 

 pupa, the others that they emerge from the larvae, which die when 

 ready to pupate, and others that they leave their host when the 

 latter ceases to feed in preparation for metamorphosis. 



The author has never seen the larvae emerge from the pupae ; the 

 infested larvae cease to feed and after weaving some threads remain 

 motionless while the parasitic larvae emerge, and using these strands 

 as a support, spin their own cocoons beneath the body of the caterpillar ; 

 the latter remains motionless for a day or two and finally dies ; the 

 strands of tissue formed by the caterpillar are not indispensable to 

 the larvae in spinning their cocoons. The method of controlling 

 Pieris brassicae by crushing the caterpillars on the leaves of the host- 

 plant should be avoided, as it results in the destruction of innumerable 

 useful parasites. 



Feytaud (J.). Le Ver des Pommes {Carpooapsa pomoneUa, L.). [Apple 

 Worm [Cydia pomotiella, L.) ]. — Bull. Soc. Etude Vulg. Zool. Agric, 

 Bordeaux, xvii, no. 1-2, January-February 1918, pp. 1-9. 



This paper gives a resume of the life-history and control of Cydia 

 pomonella in view of the importance of the production of food of all 

 kinds at the present time. The best measure is spraying with lead 

 arsenate according to the formula fib. disodic orthoarsenate and 2 lb. 

 neutral lead acetate, yielding by double decomposition about 1| lb. 

 lead arsenate, to 22 gals, water, the wetting power of the solution 

 being increased by the addition of h lb. of adhesol. This should be 

 applied by means of a portable spraying machine soon after the fall 

 of the petals, the quantity and weight of apples harvested in October 

 being more than doubled by treatment at this stage, while spraying 

 delayed till a fortnight after flowering, increases the yield bv only 

 10-20 per cent. The best results as to total weight of fruit, and 

 weight of sound fruit, are obtained by spraying at both these times, 

 the yield of sound fruit being increased sis-fold. 



This pest has several natural enemies, including birds, spiders and 

 numerous parasites, especially the Hymenoptera, Gatnpoplex pomorum, 

 Ratz., Pimpla. roborator, F., Ephialtes carbonarius, Zach., Pristomerus 

 vulnerator, Panz., Stylocryptus brevis, Grav., Phygadeuon varicornis, 

 Thorns., Hemiteles inimicus, Crrav., Microdus conspicuus, Wesm., 

 Ascogaster rufijjes, Nees, Perilampus laevifrons, Dalm., Dibmchys 

 / boucheanus, Ratz., Trichogrmmna {Oophthora) semhlidis, Auriv., and 

 Inostemma bosci, Jur., and the Tachinid fly, Leskia aurea, Fall. 



Report of the Proceedings of the Second Entomological Meeting held at 

 Pusa on the 5th to 12th February 1917.— Cakntta. 1917. 340 pp., 

 34 plates. Price 4.5. 6d. [Received 1st March 1918.] 



This report., prepared and edited by T. Baiubrigge Fletcher, the 

 Imperial Entomologist, is based partly on notes made before the meeting 



