The European Trichogramminae 
by 
J- P. Kryger. 

Taschenberg writes in his book „Die Hymenopteren 
Deutschlands“ (Leipzig 1866), that when reading through 
this work everyone will get the firm conviction that those 
who feel inclined to collect Ichneumon flies should not 
begin with the Chalcids or the Proctotrypids, and further, 
that he who offers these small insects any interest, must 
not be a beginner. This last remark must chiefly refer 
to the Proctotrypids, as Taschenberg himself does not treat 
this group but simply refers to four works which the 
collector can study. However, it may be that, if Taschen- 
berg had written his book in 1918, he would perhaps 
have treated the Proctotrypids and only used his above 
remarks with regard to the Chalcids, as the Proctotrypids 
can now to a great extent be worked out with the help 
of the published literature now in view whilst it is 
certain that many years will pass before the Chalcids are 
classified, and especially the last group of this family, 
Trichogrammine, as our knowledge here is quite in embryo 
and most probably more than a century will go before 
we have any idea of the number of species in the group. 
The present work on the European Trichogrammine 
will show what an enormous material, for example, must 
be found in the tropics, as when a single collector who 
has also been engaged with other branches of Entomology, 
in so small a field as North Seeland has been able to 
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