Seven species of the genus Eumenes Latreille, 1802 are recorded from Vietnam. A new species, E. gibbosus Nguyen, sp. nov. is described and figured. Eumenes atrophicus (Fabricius, 1798), E. inconspicuus Smith, 1858, E. labiatus sinicus Giordani Soika, 1941, and E. rubronotatus Pérez, 1905 are newly recorded from Vietnam. A key to species is given.

Social wasps are recognized for their important role as controllers of agricultural and urban pests preference preying on caterpillars. The present work describes, the first time, record social wasp Chartergellus communis Richards, 1978 (Hymenoptera: Vespidae) Cicinnus callipius Schaus, 1928 (Lepidoptera: Mimallonidae), a defoliator caterpillar, pest cashew trees. took place in fragment Semidec...

Potter wasps (Hymenoptera, Vespidae, Eumeninae) adopt different substrates for nesting, including other wasp nests. Nevertheless, such behavior rarely occurs with abandoned nests of the paper Polistinae). In this study, we report occurrence involving nesting a potter on wasp’s nest. Such record occurred in November 2021 segment deciduous forest, at Mata Seca State Park, Southeast Brazil. An Pol...

Many forensically important calliphorids, sarcophagids and muscids (Diptera) oviposit or larviposit on corpses only during the early stages of decomposition, yet individuals may attend bodies throughout decay. A field study was conducted to investigate how patterns of carcass use and attendance by some fly species are affected by decomposition. Five fly traps were placed in the forest and baite...

A review of previously published cladistic analyses of Polistes is presented. The two most recent analyses of Polistes are shown to be largely consistent phylogenetically. Although the taxonomy implied by each differs, this difference is shown to be mostly due to taxon sampling. After the review, a phylogenetic analysis of Polistes — the most data-rich yet undertaken — is presented. The analysi...

The social wasps are predators of many insect species and the study of their preys can reveal the potential of these natural enemies in biological control programs. A total of 240h of collections of preys in 32 nests of Polistes versicolor (Olivier) was carried on in Juiz de Fora, Minas Gerais State, Brazil, from March 2000 to February 2001. The preys captured by P. versicolor were mainly those...