 Even with relevantly high doses of Dc1a, "P.americana" has minor contractions in abdominal muscles and reversible reduced motor activity.On the other hand, Dc1a is lethal for the German cockroach "(B.germanica)" and it induces dose-dependent paralysis 8 hours after injection.KD50 value of Dc1a is 3.0 ± 1.2 nmol/g and LD50 value of Dc1a is 4.2 ± 3.4 nmol/g for "B.germanica".