226 DRY AND MESOPHYTIC FOREST COMMUNITIES 
Fic. 190.—The cottonwood and young pine area at Buffington, Ind. 
Fic. 191.—The burrow of one of the tiger-beetles resident here. 
Fic. 192.—The same opened, showing the stove-pipe form of burrow opening 
into the side of the pit shown in Fig. ror. 
FIG. 193.—The adult beetle (Cicindela formosa generosa). 
