Contribution to the Species of Oxyligyrus Arrow (Coleoptera, Melolonthidae) of the Peruanus Species Group with the Description of Two New Species.

Two new species of the genus Oxyligyrus Arrow, 1908 from the peruanus species group are described from Brazil and compared with other species of the genus Oxyligyrus limeirai sp. nov., from Maranhão state and Oxyligyrus vazdemelloi sp. nov. from Mato Grosso state. A key to the peruanus complex and a distribution map of their known brazilian localities is also provided. New state records from Brazil are also presented for Oxyligyrus zoilus (Olivier 1789) the most widespread species of the genus and for O. acutus Endrödi, 1966.

Revisiting pollinating Cyclocephala scarab beetles (Coleoptera: Melolonthidae: Dynastinae) associated with the soursop (Annona muricata, Annonaceae).

The soursop (Annona muricata L., Annonaceae) is an important fruit crop in several countries of South America, including Brazil, and the presence of the scarab beetles in this orchads can reduce pollination deficits and increase the productivity. For this reason, we report Cyclocephala celata Dechambre, 1980 as a flower visitor and potential pollinator of the soursop. Additionally, this work presents an updated list of Cyclocephala species found on A. muricata, corrects some misidentifications, and provides comments and an identification key for all taxa cited as floral visitors of this crop.