xii ILL USTRA TIONS. 
PJ.GR 
Carnivorous Beetles, Dyticiis marginalis, and the whirligig 
beetles 257 
Daddy-long-legs, showing the balancers ..... 262 
Common Gnat, grub, pupa, insect emerging and gnat on the 
wing . . . 264 
The Hill Ant, Formica rttfa, and House Ant, Myrmica molesta t 
and their structure . . . . . . . .271 
Ant's Head and Foot, showing the mouth-parts and the leg-combs 273 
Section of an Ants' nest, from Figuier ..... 279 
Cleared disk of the agricultural ant's nest . , Z f ;5 
