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      Nesting biology of the oil-collecting bee Epicharis (Hoplepicharis) fasciata (Hymenoptera: Apidae) in an urban area of Rio de Janeiro, RJ, Brazil Translated title: Biologia da nidificação da abelha coletora de óleo Epicharis (Hoplepicharis) fasciata (Hymenoptera: Apidae) em uma área urbana do Rio de Janeiro, RJ, Brasil

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          Abstract

          ABSTRACT Nests of the oil-collecting bee Epicharis (Hoplepicharis) fasciata Lepeletier & Serville, 1828 were studied at the Jardim Botânico of Rio de Janeiro, Brazil. The females constructed their nests in an area of 609 m2 of mostly sandy flat soil. The nest architecture was relatively simple, with a main tunnel of approximately 30 cm in depth with one or two lateral tunnels ending in a single brood cell. Adult activity lasted approximately 45 days. The females dug the tunnels, constructed the brood cells, collected provisions and laid the eggs in approximately two days. Diapause occurred in the post defecating larval stage, and there was no cocoon. Nest architecture and the morphology of the brood cells are described and illustrated.

          Translated abstract

          RESUMO Ninhos da abelha coletora de óleo Epicharis (Hoplepicharis) fasciata Lepeletier & Serville, 1828 foram estudados no Jardim Botânico do Rio de Janeiro, Brasil. As fêmeas construíram seus ninhos em uma área de 609 m2 de solo plano principalmente arenoso. A arquitetura do ninho é relativamente simples, com um túnel principal de aproximadamente 30 cm de profundidade, com um ou dois túneis laterais terminando em uma única célula de cria. A atividade dos adultos se estendeu por cerca de 45 dias. As fêmeas cavam os túneis, constroem as células de cria, coletam as provisões e depositam os ovos em aproximadamente dois dias. A diapausa ocorreu no estágio de larva pós-defecante e não houve casulo. A arquitetura dos ninhos e a morfologia das células de cria são descritas e ilustradas.

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          Nesting biology, seasonality, and flower hosts of Epicharis nigrita (Friese, 1900) (Hymenoptera: Apidae: Centridini), with a comparative analysis for the genus

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            A new technique in the excavation of ground-nest bee burrows (Hymenoptera: Apoidea)

            ABSTRACT Bees have a diversified natural history, thus the methods applied to study such diversity are varied. When it comes to studies of nesting biology, bees which nest in pre-existing cavities have been reasonably well studied since researchers started using trap-nests. However, bees whose nests are built underground are poorly studied due to the difficulty of finding natural nesting areas and the absence of a method that facilitates bee nest excavation. The latter is evidenced by the lack of accurate descriptions in literature of how nests are excavated. In this study we tested cylindrical rubber refills of eraser pen as a new material to be used as a tracer of underground nest galleries in a natural nesting area of two species of Epicharis Klug, 1807 (Apidae). We compared this technique directly with plaster in powder form mixed with water and our results with other methodological studies describing alternative methods and materials. The rubber refill technique overcame the main issues presented by materials such as plaster, molten metal alloys and bioplastic, namely: death of the organisms by high temperatures and/or formation of plugs and materials unduly following the roots inside the galleries.
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              New bees from Trinidad

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                Author and article information

                Journal
                isz
                Iheringia. Série Zoologia
                Iheringia, Sér. Zool.
                Museu de Ciências Naturais (Porto Alegre, RS, Brazil )
                0073-4721
                1678-4766
                2020
                : 110
                : e2020025
                Affiliations
                [1] Rio de Janeiro Rio de Janeiro orgnameUniversidade Federal do Rio de Janeiro orgdiv1Museu Nacional orgdiv2Departamento de Entomologia Brazil fvivallo@ 123456yahoo.com
                Article
                S0073-47212020000100225 S0073-4721(20)11000000225
                10.1590/1678-4766e2020025
                b4123d18-1342-4324-8149-46c5fd9f869a

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 27 June 2020
                : 31 August 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 11, Pages: 0
                Product

                SciELO Brazil

                Categories
                Articles

                Anthophila,abelha solitária,arquitetura do ninho,Neotropical Region,bionomia,Região Neotropical,solitary bee,nesting architecture,bionomy

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