Dec, 1922.] Weiss & West: Insects of a Moist Woods. 189 



Types of Food Habits. 



Thus in the woods about 37 per cent, of the species were phytoph- 

 agous, about 35 per cent, saprophagous, and this percentage ap- 

 pears reasonable in view of the dead timber and moist conditions; 20 

 per cent, consisted of predaceaus species, 5 per cent, of parasitic 

 species, etc. The 5 per cent, for parasitic forms is probably low 

 and could have been increased by more diligent collecting of the 

 small parasitic species in the Hymenoptera. 



In the thicket 63 per cent, of the species collected were phytoph- 

 agous, 9 per cent, saprophagous, 19 per cent, predaceous, etc. 

 The large percentage of phytophagous forms appears to be due to 

 the larger herbaceous flora of the thicket, the presence of more 

 sunlight and warmth and the absence of conditions which would 

 support saprophagous insects. 



