New genus, new combination and new tribal placement for the enigmatic species Stenocrates nasutus Dechambre, 1979 (Coleoptera, Scarabaeidae, Dynastinae)
DOI:
https://doi.org/10.11606/1807-0205/2026.66.special-issue-1.014Keywords:
Melolonthidae, Neotropical region, New species, Scarabaeoidea, TaxonomyAbstract
Monneocrates gen. nov. is proposed herein to accommodate the enigmatic species Stenocrates nasutus Dechambre, 1979 (Coleoptera: Scarabaeidae: Dynastinae), resulting in a new combination. Additionally, Monneocrates parabolicus sp. nov. is also described. The new genus is placed within the tribe Phileurini based on the characters of the mentum: laterally expanded and nearly entirely covering the first labial palpomere in ventral view. Illustrations, diagnoses, and a geographical distribution map are provided for Monneocrates species, including a first record of S. nasutus from Brazil. Finally, a discussion on the diagnostic characters used to define the new genus and the differences of its species from Stenocrates Burmeister, 1847, as well as the justification for placing the new genus within Phileurini, are presented.
Downloads
References
Albertoni, F.F.; Krell, F.T.; Steiner, J. & Zillikens, A. 2014. Life history and description of larva and pupa of Platyphileurus felscheanus Ohaus, 1910, a scarabaeid feeding on bromeliad tissues in Brazil, to be excluded from Phileurini (Coleoptera, Scarabaeidae, Dynastinae). Zookeys, 389: 49-76. https://doi.org/10.3897/zookeys.389.6888.
Burmeister, H. 1847. Handbuch der Entomologie. Berlin, TCF Enslin. v. 5, 584p.
Cherman, M.A. & Grossi, P.C. 2020. A crop pest species of Cyclocephala Dejean (Coleoptera: Melolonthidae: Dynastinae) misidentified for over twenty years in Southern Brazil. Bragantia, 79(3): 372-376. https://doi.org/10.1590/1678-4499.20200079.
Dechambre, R.-P. 1979. Cinq espèces nouvelles de Stenocrates [Col. Scarabaeoidea Dynastidae]. Revue Française d’Entomologie (Nouvelle-Series), 1: 61-64.
Dupuis, F. 2017. Les Stenocrates Burmeister, 1847, de Guyane (Coleoptera, Dynastidae). Coléoptères, 23: 49-60.
Dupuis, F. & Perrin, R. 2020. Les coléoptères Dynastidae de Guyane. Coleoptera. Scarabaeoidea. Paris, Muséum National d’Histoire Naturelle. 416p. (Patrimoines Naturels, 81)
Endrödi, S. 1966. Monographie der Dynastinae (Coleoptera, Lamellicornia). I. Teil. Entomologische Abhandlungen des Staatlichen Museums für Tierkunde Dresden, 33: 1-460.
Endrödi, S. 1977. Monographie der Dynastinae 8. Tribus: Phileurini, amerikanische Arten I. (Coleoptera). Folia Entomologica Hungarica, 30: 7-45.
Endrödi, S. 1985. The Dynastinae of the world. Dordrecht, W. Junk. 800p.
Gasca-Álvarez, H. & Amat-García, G. 2010. Synopsis and key to the genera of Dynastinae (Coleoptera, Scarabaeoidea, Scarabaeidae) of Colombia. ZooKeys, 34: 153-192. https://doi.org/10.3897/zookeys.34.309.
Jameson, M.L. 1998. Phylogenetic analysis of the subtribe Rutelina and revision of the Rutela generic groups (Coleoptera: Scarabaeidae: Rutelinae: Rutelini). Bulletin of the University of Nebraska State Museum, 14(1997): 1-184.
Jameson, M.L. & Wada, K. 2004. Revision of the genus Peltonotus Burmeister (Coleoptera: Scarabaeidae: Dynastinae) from Southeastern Asia. Zootaxa, 502: 1-66. https://doi.org/10.11646/zootaxa.502.1.1.
Lachaume, G. 1992. Les Coléoptères du Monde, Vol. 14. Dynastidae Américains. Cyclocephalini – Agaocephalini – Pentodontini – Oryctini – Phileurini. Venette, Sciences Nat. 89p.
Lawrence, J.F.; Slipinski, A.; Seago, A.E.; Thayer, M.K.; Newton, A.F. & Marvaldi, A.E. 2011. Phylogeny of the Coleoptera based on morphological characters of adults and larvae. Annales Zoologici, 61: 1-217. https://doi.org/10.3161/000345411X576725.
Maia, A.C.D.; Carvalho A.T.; Paulino-Neto, H.F. & Schlindwein, C. 2012. Besouros (Insecta, Coleoptera) como Polinizadores no Brasil – perspectivas no uso sustentado e conservação na polinização. In: Imperatriz-Fonseca, V.L.; Canhos, D.A.L.; Alves, D.A. & Saraiva, A.M. Polinizadores do Brasil: contribuição e perspectivas para a biodiversidade, uso sustentável, conservação e serviços ambientais. São Paulo, Editora da Universidade de São Paulo.
Moore, M.R. & Jameson, M.L. 2013. Floral associations of cyclocephaline scarab beetles. Journal of Insect Science, 13(100): 1-43. https://doi.org/10.1673/031.013.10001.
Moore, R.M.; Cave R.D. & Branham, M.A. 2018a. Synopsis of the cyclocephaline scarab beetles (Coleoptera, Scarabaeidae, Dynastinae). ZooKeys, 745: 1-99 https://doi.org/10.3897/zookeys.745.23683.
Moore, R.M.; Cave, R.D. & Branham, M.A. 2018b. Annotated catalog and bibliography of the cyclocephaline scarab beetles (Coleoptera, Scarabaeidae, Dynastinae, Cyclocephalini). ZooKeys, 745: 101-378. https://doi.org/10.3897/zookeys.745.23685.
Ponchel, Y. 2011. Liste actualisée des Dynastinae de Guyane (Coleoptera, Scarabaeidae). Contribution á L’Étude des Coléoptères de Guyane, 4: 60-61.
Ratcliffe, B.C.; Cave, R.D.; Giraldo Mendoza, A.; Figueroa, L. & López-García, M.M. 2025. The dynastine scarab beetles of Peru (Coleoptera: Scarabaeidae: Dynastinae). Bulletin of the University of Nebraska State Museum, 35: 1-760.
Ratcliffe, B.C. & Cave, R.D. 2006. The dynastine scarab beetles of Honduras, Nicaragua and El Salvador (Coleoptera: Scarabaeidae: Dynastinae). Bulletin of the University of Nebraska State Museum, 21: 1-424.
Ratcliffe, B.C. & Cave, R.D. 2023. Synopsis of the New World genera of Phileurini (Coleoptera: Scarabaeidae: Dynastinae) with English and Spanish keys to the genera. Caudasia, 45(3): 491-509. https://doi.org/10.15446/caldasia.v45n3.104105.
Ratcliffe, B.C. & Le Tirant, S. 2023. Description of a new species of Stenocrates Burmeister (Coleoptera: Scarabaeidae: Dynastinae: Cyclocephalini) from Peru and a revised catalog of the species of Stenocrates. Faunitaxys, 11(21): 1-5.
Ratcliffe, B.C. & Morón, M.A. 1997. Dynastinae. In: Morón, M.A.; Ratcliffe, B.C. & Deloya, C. Atlas de los Escarabajos de México. Coleoptera: Lamellicornia. Volume 1. Familia Melolonthidae. México, DF, Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) and Sociedad Mexicana de Entomologia. p. 53-98.
Ratcliffe, B.C.; Cave, R.D. & Cano, E.B. 2013. The Dynastine scarab beetles of Mexico, Guatemala, and Belize (Coleoptera: Scarabaeidae: Dynastinae). Bulletin of the University of Nebraska State Museum, 27: 1-666.
Ratcliffe, B.C.; Cave, R.D. & Le Tirant, S. 2023. The Dynastine scarab beetles of Argentina, Paraguay, and Uruguay (Coleoptera: Scarabaeidae: Dynastinae). Bulletin of the University of Nebraska State Museum, 32: 1-586.
Ratcliffe, B.C.; Cave, R.D. & Paucar-Cabrera, A. 2020. The Dynastine scarab beetles of Ecuador (Coleoptera: Scarabaeidae: Dynastinae). Bulletin of the University of Nebraska State Museum, 34: 1-486.
Ratcliffe, B.C.; Cave, R.D.; Giraldo Mendoza, A.; Figueroa, L. & López-García, M.M. 2025. The Dynastine scarab beetles of Peru (Coleoptera: Scarabaeidae: Dynastinae). Bulletin of the University of Nebraska State Museum, 35: 1-760.
Shorthouse, D.P. 2010. SimpleMappr, an online tool to produce publication-quality point maps. Available: http://simplemappr.net. Access: 18/09/2025.
Wheeler, Q.D. & Platnick, N.I. 2000. The phylogenetic species concept (sensu Wheeler and Platnick). In: Wheeler Q.D. & Meier R. Species Concepts and Phylogenetic Theory. New York, Columbia University Press. 256p.
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Paulo Roberto Marinho Duarte, Paschoal Coelho Grossi, Fernando Zagury Vaz-de-Mello
This work is licensed under a Creative Commons Attribution 4.0 International License.
Responsibility: The scientific content and the opinions expressed in the manuscript are the sole responsibility of the author(s).
Copyrights: The Authors. The journal is licensed under a Creative Commons attribution-type CC-BY.
Funding data
-
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Grant numbers 151728/2024-0;309786/2019-3;312917/2022-8 PQ2;313397/2021-0 PQ1A;440604/2015-0;408430/2024-9
