Beethes of the Scarabaeidae family are important pests in areas of cultivations and pastures, mainly due the action of larvae, which damage the radicular system. The information about this group of pests are rare, thus, this work had as a purpose to study the occurrence and the biologic cycle of Anomala testaceipennis Blanchard, 1856. From November 2005 to November 2006 it was carried out daily collections with a lighting trap, and in laboratories the adult ones were kept in plastic containers, containing soil and seedlings of Brachiaria decumbens, to the biology study. It was collected an amount of 263 adults of A. testaceipennis, in almost all the months of the year, not being registered in March and June. Concerning the biology it was verified that embrionary period took in the average 13.2 days, the 1º instar 26.7 days, the 2º instar 19.4 days, the 3º instar 58.2 days, the pre-pupa phase 50.2 days and the pupa phase 13.6 days. The longevity of the adults was similar to males and females, and it took in the average 14.1 days. In the laboratory the females laid 7.3 eggs in the average. The cycle from the egg to adult took 139.4 days in the average.
Biological cycle; population fluctuation; white grub
