Kinsey: Gall Wasp Genus Cynips 
13 
Insects 
Galls 
Species 
Examined 
Examined 
Longiventris (2 var.) 
129 
... 355 
Mirab'ilis (2 var.) 
26 
... 393 
Maculosa (2 var.) 
29 
70 
Mellea (11 var.) 
431 
. . . 1,010 
Multipunctata (4 var.) 
175 
... 1,189 
Nubila (3 var.) 
64 
... 186 
Pezomachoides (8 var.) 
5,890 
. . .18,135 
Plumbea (1 var.) 
30 
38 
Teres (3 var.) 
55 
... 180 
Villosa (7 var.) 
367 
... 1,400 
Totals — 93 varieties 
17,351 insects 
54,460 galls 
We should have had thousands of specimens of every one 
of these insects. Failing that, our conclusions on certain mat- 
ters have been based to a large degree upon the more avail- 
able species, and the intensive study of those species has of- 
fered interpretations of our smaller bodies of data which 
would not otherwise have been possible. 
To obtain data on geographic distribution and the relation 
of geographic isolation to the origin of species, I have at- 
tempted to secure representative series of each Cynips from 
as many and as widely distributed localities as possible. It 
was in the fall of 1917 that I made my first collections of the 
genus, and in the twelve years that have intervened I have 
travelled over thirty-two thousand miles in the pursuance of 
the distributional data originating from my own collections. 
In 1919 and 1920 I went as a Sheldon Travelling Fellow of 
Harvard University to the South and to the Far West. For 
a number of years I have been relieved from part of my teach- 
ing to pursue research under a grant of the Waterman Insti- 
tute of Indiana University, and in this connection I have en- 
gaged in extensive field work thruout the northern Middle 
West and in the southeastern quarter of the United States. 
In the course of these contacts with gall wasps in the field, as 
well as thru the longer hours spent over the microscope, I 
have gradually developed my present concept of species. 
My own cross-country field work has been supplemented with 
collections made thru every season and in some cases for sev- 
eral years by collectors working in their native areas. Over 
a hundred such collectors have contributed data, sending mate- 
rial from localities in nearly every one of the United States 
