428 



THE ZOOLOGIST. 



99. Aphis myosotidis, Koch. 



Three direct parasites have heen bred from this species by 

 Bignell in Devon. The commonest probably is Aphidius avence, 

 Hal., with its hyperparasitic Allotria cursor, since he bred but 

 two of each sex of A. malricarice, Hal., on Oct. 22nd, 1884, and 

 but once, on the same date, A. polygoni, Marsh, {cf. Br. d'Europ. 

 ii. 572, 592, 603). 



100. Aphis amygdali, Fonsc. 



The figure of Buckton's inadequately described Cynips atri- 

 ceps (Mon. Aph. ii. 106 et 150, pi. lxxiii. fig. inf.), which he bred 

 from this Ap>his, clearly shows it to be a Cynipid and no " Diplo- 

 lepis" to which, believing it a genus of Proctotrypklce (!), he 

 wished later (ii. addenda) to ascribe it. Cameron was unable to 

 interpret it, and I have failed to find the type in Buckton's 

 collection, now in the British Museum ; but a study of the 

 figure leads me to believe it an "artistically" drawn female of 

 Allotria minuta, Htg. 



101. Aphis aparines, Kalt.t 



Allotria posticus, Htg., was bred from an Aphid under this 

 name by Kirchner (Cat. 31). 



102. Aphis euphorlice, Koch. 



From Aphides on Euphorbia par alias, supposed by Marshall 

 to be this species which is not mentioned as British by Buckton, 

 Bignell bred two males of the new Aphidius euphorbia, Marsh., 

 on July 4th, 1885. 



103. Aphis crithmi, ?auct. 

 Bignell bred Aphidius crithmi, Marsh., from this species in 



f It is not now known to which of our Aphidiince such aphidiphagous 

 species as Ichneumon aparines, Schr., 1. dipsaci, Schr. (employed by Giraud), 

 and I. aphidiphagus, Schr. (F. B. ii. 308, Bavaria), I. aphidum, Linn. (F. S. 

 1643, misplaced by Spinola and restored by Fallen to the Aphidiince), or 

 Cryptus aphidum, Fab., may belong. It was, I believe, Van Leeuwenhoek 

 who first noticed Hymenopterous parasites upon Aphididce in his ' Arcana 

 Naturae ' in 1695. Frisch, Cestoni, and De Geer first gave accurate accounts 

 of their metamorphoses. Ichneumon aphidum^L. , is synonymised by Hali- 

 day, with some doubt, with his Aphidius cirsii (Ent. Mag. 1835, p. 101), and 

 Westwood (Introd. ii. 132) refers the M Cinips de l'lchneumon des Pucerons" 

 of GeoffVoy (ii. 305) to the Chalcididce. 



