Kradok (Paederus fuscipes) butt insects or people known as "insect acid", is a small insect, about 7-8 mm black wings heading small and dark blue with orange. This type of insecticide, often choosing to end when the island is often referred to as "insect kradok butt" is in the Genus Paederus, Order Coleoptera, Staphylinidae Family found more than 600 species distributed throughout the world, especially in tropical. Often rely on the moisture content of the grass thicket area like fire and lighting designed by households, in particular, there is a lot at the end of the rainy season.