64 



BRITISH ICHNEUMONS 



Table of Genera. 



Metathoracic spiracles linear or elon- 

 gate, never circular. 



Areolet of wing wanting ; postpctiole 

 always red 



Areolet of wing entire ; postpetiole 

 immaculate black 



Metathoracic spiracles circular, very 

 rarely suboval. 



Clypeus with a distinct apical central 

 tooth 



Clypeus with no central apical tooth. 



Eyes pilose and in 9 internally con- 

 vergent apically 



Eyes glabrous and usually internally 

 subparallel. 



Abdomen apically explanate ; eyes 

 internally emarginate 



Abdomen normal ; eyes not or hardly 

 internally emarginate. 



Petiolar area distinctly excavate ; 

 nervellus not oblique 



Petiolar area not excavate, or nervel- 

 lus oblique. 



Head subcubical with the vertex very 

 broad 



Head distinctly transverse, or nervel- 

 lus oblique. 



Nervellus oblique and antefurcal, 

 usually geniculate, strong and 

 dark . (See fig.) 



Lateral foveae of clypeus large and 

 deeply impressed. 



Petiole deplanate and discreted ; 

 basal nervure vertical 



Petiole elongate, slender ; recurrent 

 nervures approximate 



Lateral foveae of clypeus small or of 

 normal size. 



Metathorax declived throughout, its 

 apex strongly produced . . 



Metathorax usually declived from 

 centre, hardly produced. 



Lower basal nervure very strongly 

 oblique, as is also nervellus. 



Terebra concealed ; radius centrally 

 subrectangular 



Terebra exserted ; metathoracic areae 

 entirely wanting 



Lower basal nervure not or but very 

 slightly oblique. 



Apical abscissa of radial nervure 

 hardly longer than basal 



Apical abscissa of radial nervure 

 evidently longer than basal. 



Lateral petiolar sulci wanting; tere- 

 bra not alwa3's exserted. 



Charops, Holnigr 

 Campoplex, Grar. 



SAtiARITIS, Hiihllgr. 

 CV.MODUSA, Hi)/lllgr. 



Casinaria, Holnigr. 

 LiMNERIUM, Asli/n. 

 Pyracmon, Holnigr. 



Canidiella, Aslini. 

 Nepiesta, Thorns. 



Nemeritls, Holnigr. 



Phohocampa, Thonis. 

 Spudastica, Tlionis. 



EcPHOROPSis, Asl/ni 



