PTEROMALIDAE OF N.W. EUROPE 



797 



cromelus (Micromelus silanus Walker, 1843) is Australian. It seems likely that the 

 European record of P. silanus is a mistake for Cyclogastrella deplanata (Nees). 



Key to European Species 

 (Females) 



Antenna with flagellum slender, only slightly stouter than the pedicellus ; 

 distal segments of funicle quadrate ; 3 anelli present. Fore wing with 

 postmarginal vein 12-14 times as long as the stigmal vein ; basal vein 

 pilose throughout, basal cell usually with a few scattered hairs in its distal 

 part. Mesoscutum and scutellum relatively shiny, with very fine and 

 delicate reticulation. 



Anterior margin of clypeus shallowly emarginate medially. Antennal 

 pedicellus (and scape) mainly to wholly testaceous ; tibiae testaceous, 

 femora less strongly infuscate than in the following species 



flavius (Walker) (p. 



Antenna with flagellum distinctly stouter than the pedicellus ; distal segments 

 of funicle slightly to quite obviously transverse ; 2 or 3 anelli present. Fore 

 wing with postmarginal vein usually approximately as long as the stigmal 

 vein, rarely very slightly longer ; basal vein usually bare, occasionally 

 sparsely pilose, basal cell bare. Mesoscutum and scutellum relatively duller, 

 with stronger reticulation. 



Antennal pedicellus often infuscate ; tibiae sometimes more or less so ; 

 femora usually mainly dark ......... 



800) 



Figs. 654-657. 654, Cyclogastrella clypealis Boucek, 2, head ; 655, Cyclogastrella deplanata 

 (Nees), $, head ; 656, Erdoesina alboannulata (Ratzeburg), 5, antenna ; 657, same, 

 2, body. 



