183 



lived from 14 to 16 days and the females as long as 28 days ; in captivity 

 females that had oviposited died sooner than those that had not done 

 so. Parthenogenesis occurs, unfertilised females producing only males. 



It has been argued that Microbracon cannot be an effective check 

 on the bollworms as the rate of parasitism is not very high (12 per 

 cent, in a trial plot at Pusa). The parasite, however, is remarkably 

 free from enemies, and lays a large number of eggs. Moreover, its 

 life-cycle takes only 10 days in summer, while that of Earias takes 30. 

 Before it can be effective, however, it must be reared artificially and 

 liberated at the beginning of the season in very large numbers. 



Tables are appended showing the daily rate of oviposition and the 

 duration of the various stages of M. lefroyi. 



Ramakrishna Ayyar (T. V.). A Check List o£ Coccidae of the Indian 



Region. — Rept. Proc. 4th Ent. Meeting, Pusa, February 1921, 

 Calcutta, 1921, pp. 336-362. 

 It seems likely that increased interest will be taken in future in the 

 Indian Coccidae, for farmers are beginning to realise their economic 

 importance. In view of the development of the fruit industry, much 

 attention must of necessity be given to those species that are fruit 

 pests, and this list should be of assistance to workers in that group 

 all over India. The geographical area included comprises the whole 

 of British IncUa, Burma and Ceylon, while every effort has been made 

 to make the list as up-to-date" as possible. Under each species one 

 or two important references are given, the more important food-plants, 

 and the chief localities in the region where the insect was observed. 



Ramakrishna Ayyar (T. V.). A List of Parasitic Hymenoptera of 



Economic Importance from South India.— AV/)/. Proc. 4th Ent. 



Meeting, Pusa, February 1921, Calcutta, 1921, pp. 363-366. 



This paper is supplementary to an earher list of economic parasites 



R.A.E., A, ix, 214]; sixty further species are added, and many 



more remain to be dealt with, though the list in its present form is a 



niore or less complete and connected record of the useful insects as 



far as at present known. 



RuscHKA (F.). Chalcididenstudien. LTeil. [Chalcid Studies. Parti.] 



— Verh. Zool.-bot. Ges., Vienna, Ixx (1920), no. 6-8, 30th July 



1921, pp. 234-315, 43 figs, [Received 1st February 1922.] 



This paper on the Eupelmidae of Europe and the Mediterranean 



region begins a series of stuches based on the Chalcid collection in the 



Natural History Museum in Vienna, which is chiefly composed of 



Mayr's and Forster's collections. A generic key, and keys to the species 



of Eupelmus and to the females of Calosota, Eusandalum, and Polymoria 



are given. 



Gautier (C). Description de deux Especes nouvelles, Trioxys placidus 



[Hym. Braconidae] et Alloxysta gautier i, J. J. Kieffer [Hym. 



Cynipidae].- — Bull. Soc. Ent. France,. Paris, no. 20, 28th 



December 1921, pp. 302-307. 



The Braconid, Trioxys placidus, sp. n., is described from the Lyons 



region, where it was found in June and July as an exclusive parasite 



of the small apple Aphid distinguished by its green or yellow-green 



abdomen. 



A Cynipid hyperparasite peculiar to this species, Alloxysta gautieri, 



sp. n., is described by J. J. Kieffer. 



