340 



THE ZOOLOGIST. 



ON THE HYMENOPTEKOUS PAEASITES OF 



KHYNCHOTA. 



By Claude Morley, F.E.S., F.Z.S. 



(Continued from p. 314.) 



73. Mclanoxanthus salicis, Linn. 

 McLachlan found this species to be annually abundantly 



attacked by Aphidius gregarius, Marsh. ; he says, " I saw a mass 

 of many thousands, each of which I believe to have been stung," 

 on a willow-twig, at Kentish Town, in September (quoted by 

 Buckton, ii. 23) ; Marshall raised the same species from this host 

 in Devonshire, where also its hyperparasite, Lygocerns carpenteri, 

 has been bred. On the Continent its place appears to be taken 

 by Aphidius proteus, Wesm., and A. obsoletus, Wesm., both of 

 which Brischke bred in Prussia (Schr. Nat. Ges. Danz. 1882, 

 p. 182). Haliday says of his exclusively British Trioxys letifer, 

 " Prodiit mihi ex Aphidibus Salicis ulmi-folire, Junio mense," 

 and Gaulle (Cat. 87) records T. heraclei, Hal., from Aphis salicis. 

 Praon abjectum, Hal., is said by Giraud (Ann. Soc. Fr. 1877, 

 p. 415) to have been bred from an aphis on Salix, and from 

 others similarly designated Gaulle (Cat.. 27) mentions Allotria 

 victrix, Westw., and A. tricolor, Kief., which may be nothing 

 but Cameron's Phceoglyphis salicis, raised by the latter from 

 black Aphids concealed in galls of the Nematid, Cryptocampus 

 mcdidarins, Htg. (= Euura pentandrce, Thorns, et Cam.) on Salix 

 pentandrce in Clydesdale. Perhaps Lygocerus castaneus, Kief., is 

 hyperparasitic on this Aphid (cf. Gaulle, Cat. 113). 



74. Siphocoryne pastinacece, Linn. 



Curtis says (Farm. Ins. 74) that the Cabbage Aphis is preyed 

 upon by "the Trionyx rapce and Cynips fulviceps, and the same 

 or a closely allied species infests the carrot aphides at an earlier 

 period." Possibly Kieffer's new Allotria brevicornis, said to have 



