PTEROMALIDAE OF N.W. EUROPE 



503 



27 (26) 



to slightly longer than, head plus thorax. Propodeum (Text-figs. 374, 



376) with a distinct, often strong, costula . . . . . 27 



Antenna with combined length of pedicellus and flagellum slightly less than 

 breadth of head ; funicular segments sometimes quadrate, or the distal ones 

 transverse ; scape often reaching only to lower edge of median ocellus. 

 Gaster sometimes much longer than head plus thorax. Propodeum with 

 costula present or absent ......... 29 



Antennal flagellum (Text-fig. 401) slender, hardly stouter than the pedicellus, 



Figs. 400-405. Habrocytus spp. 400, glabriculus Thomson, $, antenna ; 401, parietinae 

 sp. n., $, antenna ; 402, tripolii sp. n., $, antenna ; 403, albipennis (Walker), $, fore wing, 

 costal cell ; 404, crassinervis Thomson, $, fore wing venation ; 405, chrysos (Walker), $>, 

 thorax excluding metanotum and propodeum. 



