Insecticidal toxin that reversibly and voltage-independently blocks both mid-low- (M-LVA) and high-voltage-activated (HVA) calcium channels (Cav) in cockroach DUM neurons. Also causes a modest block of insect sodium channel currents (Nav). Induces potent excitatory symptoms, followed by flaccid paralysis leading to death in house crickets (By similarity). Expressed by the venom gland. The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin. This toxin comes from a male specimen. It is observed that propeptide sequences coming from male specimen are identical but have only limited homology with the female paralogs, but the reason is unknown. Belongs to the neurotoxin 08 (Shiva) family. 01 (omega toxin) subfamily.