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Indiana University Studies 
dropping” the inserted host term — dating- from the original 
publication. From Linnaeus to present students of the group, 
nearly everyone except the International Commission on 
Nomenclature has considered such names binomial and my 
present usage is in accord with practically all current practice 
among cynipid workers. Under date of October 16, 1923, the 
attention of the International Commission was directed to the 
impracticability of changing more than a hundred names 
affected by Opinion 50 in the relatively small family Cynipidae 
alone; but to date (six years later) we have only the formal 
acknowledgement of the communication by the Secretary of 
the Commission. 
The species now accepted as true Cynips have been dis- 
covered as follows: 
In 1770, 
By 1790, 
By 1810, 
By 1830, 
By 1850, 
By 1870, 
By 1890, 
By 1910, 
By 1930, 
1 variety, 1 
0 varieties, 
0 varieties, 
0 varieties, 
5 varieties, 
6 varieties, 
11 varieties, 
6 varieties, 
64 varieties, 
species was known 
0 species were added 
0 species were added 
0 species were added 
5 species were added 
5 species were added 
6 species were added 
0 species were added 
9 species were added 
Totaling 93 varieties, 26 species 
Nearly two-thirds of the varieties have been described since 
the beginning of the World War. There are almost as many 
varieties now known in this genus as Riley (in Bassett 
1882:330) predicted in the American fauna of the entire 
family Cynipidae. 
The great increase in known forms within the last twenty 
years would suggest that now we must have exhausted the 
ready opportunity to print “new species” after a Cynips ; but 
to one acquainted with the number of unexplored faunas in 
the highly varied biologic areas of the United States, with 
our almost complete lack of knowledge of the Cynipidae of the 
two largest oak floras in the world — in Mexico and south- 
eastern Asia, or even with the scant work done on the gall 
wasps of more northern and Mediterranean Europe, it may 
appear that we are only laying a foundation for extensive dis- 
coveries yet to be made in this very genus of insects. It is 
astounding that any one had a fair concept of species a 
