Four species of Tonnoira from the Brazilian Atlantic forest are described and illustrated: Tonnoira brisolaii sp. nov, Tonnoira ferreirai sp. nov., Tonnoira andradei sp. nov. and Tonnoira galatiae sp. nov. 

Phoresy is a widespread phenomenon in mites. It allows mesostigmatid mites that are associated with ephemeral habitats such as mammal dung to travel fast on larger animals can detect proper habitat from greater distance. To address the gap knowledge phoresy these mites, we examined host specificity phoretic Mesostigmata psychodid species and studied temporal dynamics see if life cycles synchron...

Sperm competition in yellow dung flies (Scathophaga stercoraria) has been extensively investigated since Parker's (1970a) seminal work (e. These flies serve as a model system for understanding the mechanisms and outcomes of sperm competition in internal fertilizers. Invariably however, these investigations have been laboratory based, and typically involved competition between only two males. Ho...

Many studies have evaluated the effect of forest fragmentation on dung beetle assemblage structure. However, few have analyzed how forest fragmentation affects the processes carried out by these insects in tropical forests where their food sources consist mainly of dung produced by native herbivore mammals. With the conversion of forests to pastures, cattle dung has become an exotic alternative...

Two new species of Psychodinae, Psychodidae, from the semi-arid region of Brazil are described and illustrated: Arisemus rubeni sp. nov. and Lepidiella olgae sp. nov. Only nine psychodid species were previously known from that region.