Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5722 No. 1: 18 Nov. 2025
Type: Article
Published: 2025-11-18
DOI: 10.11646/zootaxa.5722.1.3
Page range: 79-94
Abstract views: 76
PDF downloaded: 2

A new species of Psephenops Grouvelle, 1898, with new distribution data and habitat notes of the psephenine water-penny beetles from Mexico (Coleoptera: Psephenidae: Psepheninae)

Doctorado en Ciencias en Ecología y Desarrollo Sustentable; Departamento de Ciencias de la Sustentabilidad; El Colegio de la Frontera Sur; 86280 Villahermosa; Tabasco; Mexico.; Colección de Insectos; Departamento de Ecología de Artrópodos y Manejo de Plagas; El Colegio de la Frontera Sur; 30700 Tapachula; Chiapas; Mexico.
Doctorado en Ciencias Biológicas y de la Salud; Universidad Autónoma Metropolitana; 09340 Iztapalapa; Ciudad de México; Mexico.; Colección Nacional de Insectos; Departamento de Zoología; Instituto de Biología; Universidad Nacional Autónoma de México; 04510 Coyoacán; Ciudad de México; Mexico.
Colección de Insectos; Departamento de Ecología de Artrópodos y Manejo de Plagas; El Colegio de la Frontera Sur; 30700 Tapachula; Chiapas; Mexico.
Departamento de Ciencias de la Sustentabilidad; Grupo de Biotecnología Ambiental; El Colegio de la Frontera Sur; 30700 Tapachula; Chiapas; Mexico.
Colección Nacional de Insectos; Departamento de Zoología; Instituto de Biología; Universidad Nacional Autónoma de México; 04510 Coyoacán; Ciudad de México; Mexico.
Coleoptera Aquatic beetles Dryopoidea new species Chiapas identification key

Abstract

A new species of Psephenops is described based on specimens from Chiapas, Mexico. The new species may be separated from known Psephenops species by a combination of traits, mainly by uniformly widened parameres in dorsal view, elongated, with apex rounded, with internal margins fused at the base. First records of Belicinus rhomboideus Arce-Pérez & Shepard, 2012 and Psephenops shepardi Arce-Pérez, 2013 in Mexico are presented, while new state records of Psephenus palpalis Champion, 1913 and Psephenopalpus browni Arce-Pérez, 2004 within the country are also presented, with notes on habitat for each species; males of the latter three species are reported as collected entirely submerged utilizing a Surber sampler. An identification key for species of Psephenops of the New World is included. The number of valid species of Psephenops now totals 16, with three species occurring in Mexico. The number of species of psephenins (Psephenidae: Psepheninae) known from Mexico increases from 10 to 13.

 

References

  1. Arce-Pérez, R. (2002) A new species of Psephenops Grouvelle (Coleoptera: Psephenidae) from Mexico. Proceedings of the Entomological Society Washington, 104 (4), 964–967.
  2. Arce-Pérez, R. (2004) Psephenopalpus browni, a new genus and species of Psepheninae (Coleoptera: Byrrhoidea: Psephenidae) from Mexico. Proceedings of the Entomological Society of Washington, 106 (1), 90–96.
  3. Arce-Pérez, R., Gómez-Anaya, J.A. & Novelo-Gutiérrez, R. (2010) Coleópteros acuáticos de la zona de influencia de la central hidroeléctrica “Ing. Fernando Hiriart Balderrama (C. H. Zimapán), Hidalgo, México. II. Coleoptera: Polyphaga y Myxophaga. Acta Zoológica Mexicana, New Series, 26 (3), 639–667. https://doi.org/10.21829/azm.2010.263805
  4. Arce-Pérez, R. & Novelo-Gutiérrez, R. (2000) First record of the genus Psephenops (Coleoptera: Psephenidae) from Mexico, with a description of a new species. Entomological News, 111 (3), 196–200.
  5. Arce-Pérez, R. & Novelo-Gutiérrez, R. (2001) A new genus and species of Psepheninae (Coleoptera: Dryopoidea: Psephenidae) from Mexico. Proceedings of the Entomological Society of Washington, 103 (2), 389–395.
  6. Arce-Pérez, R. (2002) A new species of Psephenops Grouvelle (Coleoptera: Psephenidae) from Mexico. Proceedings of the Entomological Society of Washington, 104 (4), 964–967.
  7. Arce-Pérez, R. & Novelo-Gutiérrez, R. (2013) Two new species of Psephenops Grouvelle from Belize (Coleoptera: Byrrhoidea: Psephenidae), with a key to the known species from Mexico and Central America. Zootaxa, 3670 (1), 63–70. https://doi.org/10.11646/zootaxa.3670.1.5
  8. Arce-Pérez, R. & Novelo-Gutiérrez, R. (2017) Two new species of Psephenops Grouvelle (Coleoptera: Byrrhoidea: Psephenidae) from Panama. Zootaxa, 4323 (1), 109–118. https://doi.org/10.11646/zootaxa.4323.1.8
  9. Arce-Pérez, R. & Shepard, W.D. (2001) Sinopsis de la familia Psephenidae (Coleoptera: Dryopoidea) de Norte y Centroamerica. Folia Entomológica Mexicana, 40 (3), 397–406.
  10. Arce-Pérez, R., Shepard, W.D. & Morón, M.A. (2012) Belicinus Rhomboideus, a new genus and species of Psepheninae (Coleoptera: Byrrhoidea: Psephenidae) from Belize. Zootaxa, 3157 (1), 31–40. https://doi.org/10.11646/zootaxa.3157.1.3
  11. Archangelsky, M., Manzo, V., Michat, M.C. & Torres, M.P.L. (2009) Coleoptera. In: Domínguez, E. & Fernández, R.H. (Eds.), Macroinvertebrados bentónicos sudamericanos. Sistemática y biología. Fundación Miguel Lillo, Tucumánpp. 411–468.
  12. Barbour, M.T., Gerritsen, J., Snyder, B.D. & Stribling, J.B. (1999) Rapid bioassessment protocols for use in streams and wadeable rivers: Periphyton, benthic macroinvertebrates and fish. 2nd Edition. US Environmental Protection Agency Office of Water, Washington, D.C., 337 pp.
  13. Barr, C.B. & Shepard, W.D. (2024) A taxonomic review of genus Psephenops Grouvelle of the Lesser Antilles with description a new species Psephenops trini, and reassignment of Peruvian species Psephenus rockbaki Spanger (Coleoptera: Psephenidae; Psepheninae). Insecta Mundi, 1045, 1–22.
  14. Brown, H.P. & Arrington, Jr.R. (1967) A new species of Psephenus from Mexico and Texas (Coleoptera, Dryopoidea, Psephenidae). The Coleopterists Bulletin, 21 (3), 86–91. https://doi.org/10.5962/p.372426
  15. Espinoza-Toledo, A. (2018) Estructura comunitaria de macroinvertebrados en arroyos con ambiente de bosque y pastizal en el norte de Chiapas. Master’s thesis. El Colegio de la Frontera Sur (ECOSUR), Villahermosa, Tabasco, Mexico, 52 pp.
  16. Delève, J. (1967) Contribution à l’étude des Dryopoidea (Coleoptera) XIX. Notes diverses et descriptions d’espèces nouvelles. Bulletin et Annales de la Société Royale Entomologique de Belgique, 103, 414–446.
  17. Hájek, J. (2015) A new species of Schinostethus (Coleoptera: Psephenidae) from India, with new records of the genus from Southeast Asia. Acta Entomologica Musei Nationalis Pragae, 55 (2), 685–690.
  18. Hájek, J. & Lee, C.F. (2014) Aethioeubria occidentalis, a new genus and species of water-penny beetles from Mali and Senegal (Coleoptera: Psephenidae: Eubriinae). African Entomology, 22 (1), 104–109. https://doi.org/10.4001/003.022.0117
  19. Jung, S.W., Jäch, M.A. & Bae, Y.J. (2020) Review of the water penny beetles (Coleoptera: Psephenidae) of the Korean Peninsula based on morphology and mitochondrial cytochrome c oxidase subunit I gene sequences. Journal of Asia-Pacific Biodiversity, 13 (1), 13–23. https://doi.org/10.1016/j.japb.2019.10.003
  20. Kaufmann, P.R., Levine, P., Robison, E.G., Seeliger, C. & Peck, D.V. (1999) Quantifying Physical Habitat in Wadeable Streams. EPA/620/R-99/003. U.S. Environmental Protection Agency, Washington, D.C. [unknown pagination]
  21. Lee, C.F., Satô, M., Shepard, W.D. & Jäch, M.A. (2007) Phylogeny of Psephenidae (Coleoptera: Byrrhoidea) based on larval, pupal and adult characters. Systematic Entomology, 32 (3), 502–538. https://doi.org/10.1111/j.1365-3113.2006.00374.x
  22. Lee, C.F., Jäch, M.A. & Beutel, R.G. (2016) Psephenidae Lacordaire, 1854. In: Beutel, R.G. & Leschen, Richard, A.B. (Eds.), Coleoptera, Beetles. Vol. 1. Morphology and Systematics. De Gruyter, Berlin and Boston, pp. 615–628. https://doi.org/10.1515/9783110373929
  23. Passos, M.I.S., Manzo, V. & Maier, C.A. (2018) Families Dryopidae, Elmidae, and Psephenidae. In: Hamada, N., Thorp, J.H. & Rogers, D.C. (Eds.), Keys to Neotropical Haxapoda: Thorp and Covich´s Freshwater Invertebrates. Vol. III. Academic Press, San Diego, California, pp. 583–598.
  24. Spangler, P.J. (1968) A new Psephenus and its larva from Mexico (Coleoptera: Psephenidae). Entomological News, 79 (4), 91–97.
  25. Spangler, P.J. (1990) A new species and new record of the water-penny genus Psephenops (Coleoptera: Psephenidae) from Costa Rica. Entomological News, 101 (3), 137–140.
  26. Shepard, W.D. & Barr, C.B. (2014) Neoeubria inbionis Shepard & Barr, a new genus and new species of Neotropical water penny beetle (Coleoptera: Psephenidae: Eubriinae), with a key to the adult Eubriinae of the Neotropic Zone. Zootaxa, 3811 (4), 553–568. https://doi.org/10.11646/zootaxa.3811.4.7
  27. Shepard, W.D. & Barr, C.B. (2023) A revision of the Chilean water penny genus Tychepsephus Waterhouse, 1876 (Coleoptera, Psephenidae, Eubriinae), with description of a second species and two larval morphotypes, and notes on other Chilean Psephenidae. ZooKeys, 1164, 23–61. https://doi.org/10.3897/zookeys.1164.103184
  28. Shepard, W.D. & Lee, C.F. (2007) Psephenidae. In: Stals, R. & de Moor, I.J. (Eds.), Guides to the Freshwater Invertebrates of Southern Africa. Water Research Commission Report No. TT 320/07. Water Research Commission Pretoria, pp. 167–172.
  29. Shorthouse, D.P. (2010) SimpleMappr, an online tool to produce publication-quality point maps. Available from: https://www.simplemappr.net (accessed 30 March 2024)
  30. Webster, R.P. & DeMarchant, I. (2012) New Coleoptera records from New Brunswick, Canada: Dryopidae, Elmidae, Psephenidae, and Ptilodactylidae. In: Anderson, R. & Klimaszewski, J. (Eds.), Biodiversity and Ecology of the Coleoptera of New Brunswick, Canada. ZooKeys, 179, pp. 67–75. https://doi.org/10.3897/zookeys.179.2604

How to Cite

Chacón-Hartleven, E.A., Luna-Luna, A.M., Chamé-Vázquez, E.R., Mejía-González, G. & Contreras-Ramos, A. (2025) A new species of Psephenops Grouvelle, 1898, with new distribution data and habitat notes of the psephenine water-penny beetles from Mexico (Coleoptera: Psephenidae: Psepheninae). Zootaxa, 5722 (1), 79–94. https://doi.org/10.11646/zootaxa.5722.1.3