RECLASSIFICATION OF MICROGASTERINI 137 



Legs coloured as in caberae but the pale parts straw-yellow rather than reddish 

 yellow ; propodeum dull and more or less rugose all over, the rugosity denser 

 above the posterior orifice ; spine of front apical tarsal segment less well deve- 

 loped than in caberae ........ paleacritae Riley 10 



N. America. One female only, named by Muesebeck, in the British Museum 

 (Nat. Hist.). 



Host: Muesebeck (1920) records the following hosts: Nyctobia anguilineata Grote 

 and Robinson, Alsophila pometaria Harris, Cosymbia lumenaria Hiibner (Geo- 

 metridae) . 



The above taxonomic information should be accepted with caution since I have 

 seen only one specimen of this species, with broken antennae. 

 Spine of front tarsal segment 5 very weak and almost straight (Text-fig. 146) ; the 

 segment anterior to the base of the spine without an emargination. 



Very black species with the hind femur always black ; tergite 1 more rounded 

 behind than in immunis, smoother and more shiny than in that species ; metacarp 

 shorter in relation to its distance from the apex of the radial cell than in immunis 



popularis (Haliday) 11 



England. 



Host : Tyrea jacobaeae L. ( Arctiinae) . As far as I know, the only gregarious species 

 of the group. Single-brooded. 

 Spine of front tarsal segment 5 strong, conspicuously curved ; segment anterior to the 

 base of the spine deeply emarginate. 



Hind femur nearly always reddish yellow ; median field of tergite 2 tending to 

 occupy the whole of the surface of the tergite and with short, deep, incomplete sulci 

 directed towards the middle of the side of the segment ; further, the median field is 

 rugose all over and lacks definition at its posterior corners ..... 8 



Cheeks with a conspicuous white blotch ; tergite 1 tending to be widened posteriorly 

 and with the sculpture of its horizontal part a little more dense and intricate ; inner 

 spur of the hind tibia slightly longer ...... enephes sp. n. 



England : Essex, Epping Forest, 1 $, the TYPE, ex Ennomos dolabvaria, (T. R. 

 Eagles) . 



Sweden: Oland, Rapplinge, 1 ?, 4.VL1955, ex Erannis defoliaria, {Johansson). 

 Type in the British Museum (Nat. Hist.). 



Host: Ennomos dolabvaria L., Erannis defoliaria Clerck (Geometridae). 

 Cheeks without a white blotch ; tergite 1 rarely a little widened posteriorly, its sculp- 

 ture slightly more shiny and coarsely rugose-punctate ; inner spur of the hind tibia 

 relatively a little shorter than in enephes. 



Hind femur varying from entirely reddish yellow to infuscate with paler, medial 

 or lateral flush ; rarely entirely black ; sculpture of propodeum variable in in- 

 tensity ; sometimes there is considerable rugosity above the orifice, this rugosity 

 giving way to diffuse punctation anteriorly .... immunis (Haliday) 12 



British Is. Sweden. 



Host: Operophtera brumata L., Hibernia defoliaria Clerck, Cabera pusaria L., 

 Cidaria corylata Thunberg, Campaea margaritata L. (Geometridae) ; Hypena 

 proboscidalis L. (Plusiidae). 



lv Apanteles paleacritae Riley, 1882 : 313. 

 u Microgasler popularis Haliday, 1834 : 250. 



A panteles popularis (Haliday) Marshall, 1885 : 213. 

 l2 Microgaster immunis Haliday, 1834 : 250. 



Apanteles immunis (Haliday) Marshall, 1885 : 212. 



