Tiger beetles are fascinating insects. According to Bug Guide: "The female selects a site, excavates a small hole up to 10 mm deep, deposits one egg, then fills in the hole. Females are extremely specific about oviposition sites, and appear to favor damp soil. Once hatched, the larva digs a cylindrical burrow at the site, goes through three instars and expands the burrow as it grows. Depending on climate and food availability, the larval stage usually takes 2-3 years to complete."