Chasitermes tupan, a New Species of Apicotermitinae (Blattodea, Termitidae) from the Amazon Rainforest, with Addition to the Diagnosis of the Genus
DOI:
https://doi.org/10.13102/sociobiology.v73i3.11987Keywords:
taxonomy, Enteric valve seating, Digestive tubeAbstract
Most genera of Apicotermitinae described in the Neotropics are still regarded as monotypic. In this paper, we describe a second species for the so far monotypic genus Chasitermes: Chasitermes tupan sp. nov., discovered in the Amazon Rainforest. The worker is characterized by external features, such as a strongly dilated tibia, and internal features, such as a very dilated first procodeal segment and long enteric valve seating. The description of this new taxon within the Apicotermitinae emphasizes the diversity of species of this subfamily, which remains largely unexplored in the Neotropics.
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Acioli, A.N.S. & Constantino, R. (2015). A taxonomic revision of the neotropical termite genus Ruptitermes (Isoptera, Termitidae, Apicotermitinae). Zootaxa, 4032: 451-492.
Almeida-Azevedo, R., Acioli, A.N.S., Morais, J.W.D. & Azevedo, R.A.D. (2023). Caputitermes, a new genus of soldierless termite (Blattaria: Isoptera: Termitidae) with dimorphic workers from the Amazon rainforest. Acta Amazonica, 53: 201-207.
Almeida-Azevedo, R., Alves-Oliveira, J., Morais, J.W., Franklin, E. & Azevedo, R.A.D. (2023). Step-by-step dissection protocol of Apicotermitinae Worker (Blattaria: Isoptera). Sociobiology, 70: e8503.
Almeida-Azevedo, R., Acioli, A.N.S., Heleodoro, R., Morais, J.W., Brown, G., Kille, P. Cunha, L. & Azevedo, R. (2025). Tucupitermes, the Largest Apicotermitinae (Isoptera, Termitidae) From the Amazon Rainforest. Zootaxa, 1: 186-194.
Bourguignon, T., Scheffrahn, R.H., Krecek, J., Nagy, Z.T., Sonet, G. & Roisin, Y. (2010). Towards a Revision of the Neotropical Soldierless Termites (Isoptera: Termitidae): Redescription of the Genus Anoplotermes and Description of Longustitermes, Gen. Nov. Invertebrate Systematics, 24: 357-370.
Bourguignon, T., Šobotník, J., Dahlsjö, C.A.L. & Roisin, Y. (2016). The soldierless Apicotermitinae: insights into a poorly known and ecologically dominant tropical taxon. Insectes Sociaux, 63: 39-50.
Carrijo, T.F., Castro, D., Wang, M., Constantini, J.P., Bourguignon, T., Cancello, E.M., Roisin, Y. & Scheffrahn, R.H. (2023). Diminishing the taxonomic gap in the neotropical soldierless termites: descriptions of four new genera and a new Anoplotermes species (Isoptera, Termitidae, Apicotermitinae). ZooKeys, 1167: 317-352.
Donovan, S.E. (2002). A morphological study of the enteric valves of the Afrotropical Apicotermitinae (Isoptera: Termitidae). Journal of Natural History, 36, 1823-1840.
Ferreira, R.R., Carvalho, A., Lucena, E.F.D., Figueiredo, R.E.C.R.D. & Vasconcellos, A. (2025). Triclavitermes catoleensis (Termitidae: Apicotermitinae), a new soldierless termite genus and species from the Caatinga dry forest, northeastern Brazil. Zootaxa, 5706: 383-396.
Fontes, L.R. (1987). Morphology of the alate and worker mandibles of the soil-feeding nasute termites (Isoptera, Termitidae, Nasutitermitinae) from the Neotropical Region. Revista Brasileira de Zoologia, 3: 503-531.
Jouquet, P., Traoré, S., Choosai, C., Hartmann, C. & Bignell, D. (2011). Influence of termites on ecosystem functioning. Ecosystem services provided by termites. European Journal of Soil Biology, 47: 215-222.
Mathews, A.G.A. (1977). Studies on Termites from the Mato Grosso State, Brazil. Rio de Janeiro: Academia Brasileira de Ciências.
Noirot, C. (2001). The gut of termites (Isoptera) comparative anatomy, systematics, phylogeny. II. Higher termites (Termitidae). Annales de la Société Entomologique de France (Nouvelle Série) 37: 431-471.
Roonwal, M.L. (1970). Measurement of termites (Isoptera) for taxonomic purposes. Journal of the Zoological Society of India, 21: 9-66.
Scheffrahn, R.H. & Carrijo, T.F. (2023). Chasitermes pax, a new genus and species of soldierless termite (Termitidae, Apicotermitinae) from the island of Trinidad. ZooKeys, 1139: 127.
Shorthouse, D.P. (2010). SimpleMappr, an online tool to create free point maps for publications and presentations. (http://simplemappr.net). Accessed on 08 Apr 2025.
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Copyright (c) 2026 Rayssa Almeida de Azevedo, Tiago F. Carrijo, Olga Pinzón Florian, José Wellington de Morais, Renato A. Azevedo

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