PAGE 
Variation of Numbers in Dififerent Localities and Years 140 
Food and Feeding Habits of the Species 142 
Results of Feeding Experiments with May-beetles (Lachnosterna) . ." 143 
Comparative Collections of Lachnosterna from Food Plants. Urbana, 
1906 144 
Migration and Dispersal , I45 
Habits of Reproduction 150 
Relations to Weather 154 
Modes and Places of Hibernation 15S 
Principal Enemies 156 
Swine ' : 156 
Crows and Blackbirds 156 
The Common Grub-Wasp (Tiphia) 157 
Miscellaneous Insect Enemies 160 
Macrophthalma disjuncta 160 
Ophion bifoveolatum 161 
Sparnopolius fulvus 161 
Pyrgota undata 162 
Other Dipterous Parasites 163 
Relations to Soil and Subsoil 164 
Relations to Agricultural Management 165 
Injuries to Crops 165 
Prevention and Remedy 166 
