146 



Laing (F.). On the Genus Antheroides, Haliday (Aphidae). — Entom. 

 Mthly. Mag., London, 3rd Series, no. 62, February 1920, pp. 38-45, 

 5 figs. 



The genus Antheroides, Hal, is defined and compared with Sipha. 



Descriptions are also given of Antheroides junci, sp. n., on rushes in 

 England ; A. brevicomis, sp. n., and A. serrulatus, Hal., on grasses in 

 England. Sipha paradoxa, Theo., is possibly a synonym of the 

 last-named. Antheroides hirtellus, Hal., found on J uncus articidatus 

 and grasses in England and Ireland, is redescribed. 



Eamakeishna Ayyar (T. V.). A Contribution to our Knowledge of 

 South Indian Coccidae.— .^l^rnc. Res. Inst., Pusa, Bull. 87, 1919, 

 50 pp., 16 plates, 36 figs. [Received 6th February 1920.] 



The classification, general features and life-history of Coccids, 

 their distribution and means of dispersal, as well as their enemies, are 

 discussed. This list of 129 species, only 40 of which have been previously 

 recorded from S. India, includes many that have been noticed in a 

 previous paper [R.A.E., A, vii, 402]. 



Haviland (M. D.). Preliminary Note on the Life History of Lygocerus 

 (Proctotrypidae), Hyperparasite of Aphidius. — Proc. Camb. Phil. 

 Soc., Cambridge, xix, no. 6, pp. 293-295. 



Certain Braconids are well-known parasites of Aphids, pupating 

 within the dry skin of the Aphid host. Aphidius is itself frequently 

 parasitised by Cynipids, Chalcids and Proctotrupids. In the case of 

 the last-named, there has been some doubt as to whether they are 

 hyperparasites or merely parasites of the Aphids. 



The present paper records observations in 1919 on two Proctotrupids 

 of the genus Lygocerus, Tj. testa ceimanus, KiefE., a hyperparasite of 

 Aphidius solids, Hal., parasitic on Aphis saliceti, Kalt., on willows ; 

 and Ij. cafneroni, Kiefi^., a hyperparasite of Aphidius ervi, Hal., parasitic 

 on Macrosiphum urticae, on nettles. While the latter species was 

 chiefly observed, the notes probably apply to either. L. testaceimanus 

 would also oviposit on Aphidius ervi. The larvae of these Proctotru- 

 pids are also found feeding on the larvae of Chalcid or Cynipid hyper- 

 parasites of Aphids. In one case under observation Macrosiphum 

 urticae was parasitised by Aphidius ervi. The latter had been hyper- 

 parasitised by a Chalcid of species unknown, which immediately after 

 pupation had been attacked by another undetermined hyperparasite, 

 either Chalcid or Cynipid. This second hyperparasite had in turn 

 been attacked by L. cameroni, the larva being in the second instar 

 when the cocoon was opened. 



L. cameroni was fairly abundant about Cambridge in 1919, from 

 mid-July to the end of August. The female selects an Aphid cocoon 

 containing a full-grown larva or 2iewly-formed pupa of Aphidius and 

 oviposits on to the abdomen of Aphidius as it hes curled within the 

 Aphid. The egg hatches in about 20 hours, and there are four larval 

 instars, lasting 20 to 24 hours, about 36 hours, 35 to 40 hours and about 

 2 days respectively. During the second instar the host usually dies 

 and its body becomes blackened and shrunken. L. cameroni pupates 

 in the cocoon made by the Braconid inside the skin of the Aphids ; 



