Cicada Killer Wasp

The Eastern Cicada Killer Wasp, _Sphecius speciosus_, is the largest wasp in North America, belonging to the family Crabronidae. Females measure 38-50 mm, while males are slightly smaller at 15-40 mm. Their integument is predominantly black with striking yellow bands on the abdominal tergites and reddish-brown, semi-transparent wings with dark venation. Developmental stages include egg, larva (five instars), prepupa, and pupa, with a full lifecycle from egg to adult typically completed within one year. Adults, primarily univoltine, generally emerge from July to September, with larval diapause occurring over winter as a prepupa in an earthen cell.

Cicada killers are diurnal, highly active during the day, especially in warm, sunny conditions. Females actively hunt and paralyze large cicadas, primarily from the genus _Tibicen_, using a venomous sting to the cicada's ventral nerve ganglia; a single sting is sufficient to immobilize, not kill. This paralyzed prey is then transported, often in arduous flight or by dragging, back to her burrow. Males are territorial, patrolling large airspace to intercept females and deter rival males, exhibiting aggressive-looking but harmless dive-bombing toward intruders. While males do not possess a stinger, females, despite their formidable size and venom capability, are remarkably non-aggressive towards humans unless directly threatened or mishandled, with stings being rare and generally mild, localized reactions.