Weevil or vine weevil.
Weevil or vine weevil. These pests can be easily removed by hand. Adult insects they eat the foliage. Most often affects the primroses and cyclamen. However, the subject of weevil attack can be any plant, put up for the summer in the garden. Beetles consume leaves, leaving holes in them, as Colorado beetle. But the real harm to bring larvae to 2,5 cm long, cream color. Larvae live in soil and eat roots, bulbs and tubers.
If at the time did not detect the pest, the roots will be completely eaten and the plant will die. Control measures. If the root system has not eaten the whole, ie, the plant just beginning to fade, then pour the soil systemic insecticide (Fufaev, Inta-sup, etc.) and process the leaves. It is better to transplant the plant into fresh soil.