Larvae: Larvae are S-shaped, with dorsal abdominal hooks
(on segment 5) which are used to hold position in their
vertical burrows. Some species have adapted to surviving
long periods of flooding (river species). Burrows range in
depth from 8 to 10 inches (20 to 25 cm) (Megacephala) to
several feet (100 cm) (Cicindela spp.), the extreme example
being that of C. lepida whose larvae have been found to
burrow six feet (180 cm) deep