THE CHALCIDOI.D FAMILY TRICHOGRAMMATIDAE 
II 1 SYSTEMATIC HISTORY AND COMPLETION OF THE 
CATALOGUE AND TABLE 
By A. A. Girault 
Wenn die Fiihlergliederzahl richtig angegeben worden ist, woran ich 
nicht zweifle, dann liegt darin schon ein gutes Unterscheidungsmerkmal 
von alien iibrigen Gattungen dieser Familie. — Arnold Foerster. 
INTRODUCTION 
Although these words of Arnold Foerster were written more 
especially in connection with the genus Trichogramma the type 
genus of this family, yet today, somewhat over a half century later, 
they are as applicable to the family as a whole as they were to that 
genus then and as they still remain now. There was scarcely a 
genus in the family which had not been almost hopelessly confused 
because of wrong antennal conceptions and of this Trichogramma 
is one of the most notable examples. And not only this, but the 
same can be said for other structural characters of generic value, 
more especially the structure and form of the wings and their 
venation. 
But still further than this, in spite of the fact that the family 
has been known for three-quarters of a century and quite a number 
of species have been described, some now being prominent, the 
total inadequacy of specific descriptions has been very conspicuous. 
Coloration had been relied upon almost exclusively, but, as I 
have shown recently, proves non-reliable and sometimes wholly 
inconsequential, so much so, that in certain genera it is impossible 
to distinguish many of the species at all by it, even when these 
species are compared side by side. And, moreover, because of 
the confusion as to generic characteristics, these brief colorational 
1 Part I, see this Bulletin, vol. 12, 1912, pp. 81-100. Since this second part was written (1909), 
I have added a large number of genera and species to the family and have made unforseen advances 
in the study of the group. Part I is supplemented as needed. 
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