PTEROMALIDAE OF N.W. EUROPE 



3i 



Figs. 56-59. 56, Semiotellus mundus (Walker), $, body, excluding appendages ; 57, 

 Pirene chalybea Haliday, $, body, excluding appendages ; 58, Colotrechnus subcoeruleus 

 Thomson, $, body excluding appendages ; 59, Pteromalus puparum (L.), $, whole insect. 



