INTRODUCTORY PAPERS ON ICHNEUMONID^. 209 



specimens of P. dimidiatus, which varies much as to colour, are 

 amongst our most striking species. P. Thedeiiii, Holmgr., has 

 been added to the British fauna (Trans. Ent. Soc. Lond. 1881, 

 p. 145; Entom. xiv. 139); but as not half of the North-west 

 European species are included in Marshall's Catalogue, doubtless 

 many additions are yet to be made. P. rufiventris, a species 

 which certainly ought to occur here and which has been bred 

 from Macaria liturata and Halia loavaria, is well figured on 

 Wesmael's plate of the ' Ichneumones platyuri Europsei' (fig. 10). 

 The British species which have been bred are as follows : — 



2. tenuicornis, Gr. from Platypteryx curvatula* ; Brischke. 



3. dolorosus, 6^;-. ,, Geometer; Brischke. 



4. nigrocyaneus, Gr. „ Fidonia piniaria ; Rondani. Trachea pini- 



perda ; Rond. Plusia festucse ; Stephens. 



6. pedatorius, Fahr. „ Hybernia defoliaria ; Brischke. Eupithecia 



sobrinata ; Goossens (Giraud). E. na- 

 uata ; Brischke. E. exiguata ; Brischke. 

 E. pimpinellata ; Brischke. E. innotata ; 

 Gir., Brischke. E. subnotata ; Golding- 

 Bird. E. scopariata (Guinardaria)=:= ; 

 Gir. Pelurga comitata ; Richter (Gra- 

 venhorst). 



7. orbitahs, Gr. ,, Fidonia piniaria ; Ferris (Gir.). Lobo- 



phora sexalata ; Brischke. Thera juui- 

 perata ; Brischke. Melanippe fluctuata ; 

 Brischke. 



8. vol ubilis, 6^r. „ ? Psyche viciella (Stettinensis)* ; Hering. 

 10. dimidiatus, Gr. „ Melanippe fluctuata ; Brischke. Depres- 



saria heracliana ; Boie. D. depressella ; 



Rond. 

 12. errabundus, Gr. „ Anticlea sinuata ; Brischke. A. rubidata ; 



Brischke. 

 14. pactor, Wesm. ,, Eupithecia absynthiata ; Brischke. 



Thedenii, Holniijr. „ Emmelesia unifasciata ; Elisha. 



Ap^letious, Wesm. 



Scutellum pale ; abdomen red, in male base black ; femora and tibiae 

 red, apex of hinder black, coxte and trochanters of the female red ; 

 metathorax bispined ; post-petiole closely punctured. 



1. helllcosus, 3 lines. 



The female of this species is beautifully figured by Wesmael. 

 It is our only representative of the genus (Wesmael describes five 

 species), and is apparently very rare in Britain. There is a 

 single specimen in the British Museum from Desvignes' collection. 

 We are not aware that any species of Apceleticus has been bred. 



2e 



