54 



EXPLANATIONS OF PLATES VI. TO IX, 



Plate VI. 



Life-History of the Tiger Beetle. 

 Cicindela campestris. 



1. Head of larva at entrance of burrow, x 2. 



2. Larva in burrow, extended, x I. 



3. Larva resting contracted in burrow, x 1. 



4. Larva, x 2. 



5. Fifth abdominal segment of larva, with dorsal hooks, x 4. 



Plate VII. 



LiFE-HlSTORY OF THE TiGER BEETLE. 



Cicindela campestris. 



1. Larva in cell awaiting pupation, x 1^. 



2. Beetle still in its cell after emerging from pupa, x 1^. 



3. Pupa and empty larval skin in cell. X 1^. 



Plate VIII. 



LiFE-HlSTORY OF THE AnT-LiON. 



Slyrmeleon formicarius . 



1. Home of the Ant-lion. Switzerland. 



2. Larva, dorsal surface, x 2. 



3. ,, ventral surface, x 2. 



4. Pupa, male, x 2. 



5. Pupa, female, x 2. 



Plate VIII. 



Life-History of the Ant-Liox. 

 Myrmeleon forjiiicarius. 



1. Pit of Ant Lion, x i. Switzerland. 



2. Larva burrowing backwards into the sand, x 1. 



3. Cocoon. X 1. 



4. Imago, female, x 1. 



5. Larval excreta, deposited by imago after emergence, x 5. 



6. Ova. X 5. 



