First record of emergency queen rearing in stingless bees (Hymenoptera, Apinae, Meliponini)
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This paper presents the first record of emergency queen rearing in stingless bees. The main steps of the event in Trigona (Frieseomelitta) varia (Lepeletier) queenless colonies are: 1) construction and provisioning of an auxiliary cell in close contact to that housing a late feeding-stage larva; 2) construction of a connection between the two cells; 3) ingestion of food stored in the auxiliary cell by the larva via this connection; 4) dismantling of the empty auxiliary cell by the workers; 5) gradual restructuring of the cell containing the extra-fed larva into a royal cell; 6) emergence of the imago after 25 days. In one case, the new gyne started ovipositing at 19 days old.
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