01953naa a2200385 a 450000100080000000500110000800800410001902200140006002400520007410000240012624501200015026000090027052008460027965000130112565000200113865000190115865000120117765000140118965300200120365300230122365300180124665300240126465300300128865300260131865300250134465300250136970000210139470000180141570000210143370000170145470000140147170000140148570000220149977300460152121756382025-05-15       2025    bl uuuu     u00u1 u    #d  a1175-53347 ahttps://doi.org/10.11646/zootaxa.5633.1.112DOI1 aALMEIDA-AZEVEDO, R.  aTucupitermes, the largest Apicotermitinae (Isoptera, Termitidae) from the Amazon Rainforest.h[electronic resource]  c2025  aSoldierless termites of the Apicotermitinae remain one of the least studied groups in termite taxonomy, particularly within the Amazon Rainforest, a biodiversity hotspot. This study introduces Tucupitermes ubixaba Almeida-Azevedo, Acioli & Azevedo gen. et sp. nov., the largest Apicotermitinae in the Amazon Rainforest and a new monotypic genus distinguished by unique morphological traits, including an elongated stomodeal valve, Malpighian ampullae developed, a long mesenteric tongue, and small bilobed seating. These features were documented through detailed analyses of the external and internal morphology of the worker caste. The discovery of this genus not only fills a critical gap in the taxonomy of Apicotermitinae but also provides new insights into the diversity and ecological adaptations of soldierless termites in the Amazon.  aAmazonia  aSoil morphology  aBiodiversidade  aMinhoca  aTaxonomia  aApicotermitinae  aCupins sem-soldado  aEnteric valve  aFloresta Amazônica  aServiços ecossistêmicos  aSoil-feeding termites  aSoldierless termites  aTucupitermes ubixaba1 aACIOLI, A. N. S.1 aHELEODORO, R.1 aMORAIS, J. W. de1 aBROWN, G. G.1 aKILLE, P.1 aCUNHA, L.1 aAZEVEDO, R. A. de  tZootaxagv. 5633, n. 1, p. 186-194, 2025.