94 
Psyche 
[April 
TABLE I 
No. 
species 
Phyto- 
phagous 
Sapro- 
phagous 
Harpac- 
to- 
phagous 
Parasitic 
Pollen 
feeders, 
misc. sp. 
Quelpart Island 
577 
55 % 
15 % 
19 % 
10% 
1% 
Western Arctic 
Coast of N. A. 
400 
47 % 
27% 
14% 
10% 
2% 
State of N. J. 
10,500 
49 % 
19 % 
16% 
12% 
4 % 
State of Conn. 
00 
52 % 
19 % 
16% 
10% 
3 % 
TABLE II 
Quelpart Island 
577 
5 - 5 % 
1 - 5 % 
1 - 9 % 
1.0% 
0.10% 
Western Arctic 
Coast of N. A. 
400 
4 - 7 % 
2.7% 
i- 4 % 
1.0% 
0.20% 
State of N. J. 
10,500 
4 -i% 
1.6% 
i- 3 % 
1.0% 
0 - 33 % 
State of Conn. 
6,781 
5 - 2 % 
i- 9 % 
1.6% 
1.0% 
0.30% 
The adjusted figures for Quelpart Island, with its varied 
flora, tend to support the suggestion advanced in previous papers, 
that the ratios between the various types of food habits, based on 
the species present, vary but little when large areas, each em- 
bodying different types of vegetation are considered in toto and 
when the numerical ratios between the species present and the 
factors tending to reduce or change their numbers are con- 
sidered as constant. 
