312 



THE ZOOLOGIST. 



either the present species or Siphonophora jacecs, Linn. (Ann. 

 Soc. Fr. 1877, p. 415). Haliday also bred his Aphidius crepidis 

 from Aphids, probably of this species, on Crepis virens (Ent. 

 Mag. 1835, p. 94) ; and it is possible that Megaspilus aphidum, 

 Gir., bred (Ann. Soc. Fr. 1877, p. 434) from " Aphis sur Crepis," 

 was hyperparasitic through this species. Praon volucre, Hal., 

 has also been bred from it in Devon, by Bignell in the middle of 

 June, with its hyperparasites, Allotria idlrichi, Isocrates vulgaris, 

 and species of Lamprotatus. Giraud's hyperparasite was pro- 

 bably the same species as Kieffer's Lygocerus bifoveolatus, and 

 Allotria jlivicornis, given as preying upon Aphis sonchi by 

 Brischke (Schr. Nat. Ges. Danz. 1882, p. 182), synonymous with 

 either A. (Alloxysta) nigrita, Thorns., or A. carpentieri, Kieff., 

 which have also been raised from this species. 



59. Siphonophora cichorii, Koch. 



There can, I think, be little doubt that the Aphids feeding 

 upon Ciehorium intybus, from which Haliday (Ent. Mag, 1835, 

 p. 94) bred his Aphidius crepidis, were of this species. 



60. Siphonophora olivata, Buckt. 



In Devonshire Bignell has bred Aphidius cardui, Marsh., 

 commonly from this species in the middle of August (Marsh. 

 Br. d'Europ. ii. 594), and the exclusively British Trioxys angelica, 

 Hal., was also raised by him from the same host on July 17th, 

 1883. 



61. Siphonophora citrifolii, ? auct.* 

 Two new Chalcids have been recorded from this injurious 

 species in America by Ashmead : Encyrtus siphonophorce (Trans. 

 Amer. Ent. Soc. 1886, p. 131) and Entedon aphidiphagus (I.e. 

 1887, p. 201). 



62. Myzus cerasi, Fabr. 

 Ephedrus lacertosus, Hal., was bred from this species in 

 Devonshire by Bignell on June 8th, 1883, and E. validus, Hal., 

 on 4th of the following July ; but whether it be upon these 

 species or upon Aphidius cerasi, Marsh., only one male of which 

 the latter succeeded in raising, that the abundant Allotria flavi- 

 cornis, Htg., preys is not yet clear (cf. Marsh. Br. d'Europ. ii. 

 548 et 608). 



