Toxin that paralyzes insects. May have a direct effect on the insect central nervous system. Expressed by the venom gland. Comprises exclusively 4 tightly packed alpha helices (no beta strand is present). PD(50) is 2.60 nmol/g when injected into tobacco budworm. PD(50) is 0.23 nmol/g when injected into cabbage looper. PD(50) is 0.3 nmol/g when injected into beet army worm. PD(50) is 0.57 nmol/g when injected into southern corn rootworm. Arose via modification of ancestral neuropeptide hormones (ion transport peptide/crustacean hyperglycemic hormones (ITP/CHH)). Belongs to the helical arthropod-neuropeptide-derived (HAND) family.