Integrative taxonomy of the genus Dyscolus (Coleoptera, Carabidae, Platynini) in Ecuadorian Andes

DOI: https://doi.org/10.5852/ejt.2020.646
Keywords: ground beetles, new species, new synonymy, Ecuador, montane forest, páramo, DNA barcoding

Abstract

The genus Dyscolus Dejean, 1831 is a highly speciose taxon of neotropical Carabidae and the major component of high-altitude ground beetle communities in the tropical Andes. The aim of this study is threefold: (i) refine the taxonomic position of the equatorial members of Dyscolus using molecular data, (ii) provide a delimitation of the species found in Ecuador in páramo and montane forest environments based on a robust combination of molecular and morphological data, (iii) describe the new species and take the nomenclatural decisions made necessary by the results of this study. The seclusion of Dyscolus from more basal platynine clades including Platynus, Batenus and Glyptolenus, is supported by a phylogenetic analysis of the COI marker. Twenty-five new species of Dyscolus, most of them microendemic, are described and illustrated: D. aquator Moret sp. nov. (Tandayapa, Pichincha), D. arauzae Moret sp. nov. (Mt Cayambe, Pichincha), D. arborarius Moret sp. nov. (Parque Nacional Yacuri, Loja), D. barragani Moret sp. nov. (Mt Ayapungu, Chimborazo), D. crespoae Moret sp. nov. (Parque Nacional Podocarpus, Zamora-Chinchipe), D. danglesi Moret sp. nov. (Parque Nacional Yacuri, Loja), D. donosoi Moret sp. nov. (Parque Nacional Podocarpus, Zamora-Chinchipe), D. eleonorae Moret sp. nov. (Cotopaxi and Pichincha provinces), D. famelicus Moret sp. nov. (Papallacta, Napo), D. giselae Moret sp. nov. (Reserva Otonga, Cotopaxi), D. globoculus Moret sp. nov. (Parque Nacional Podocarpus, Zamora-Chinchipe), D. gobbii Moret sp. nov. (Guamaní and Mt Antisana, Pichincha), D. incommunis Moret sp. nov. (Tandayapa, Pichincha), D. marini Moret sp. nov. (Parque Nacional Podocarpus, Loja), D. piscator Moret sp. nov. (Guamaní, Napo), D. placitus Moret sp. nov. (Guamaní, Napo), D. ravidus Moret sp. nov. (Parque Nacional Podocarpus, Loja), D. rivinus Moret sp. nov. (Reserva Otonga, Cotopaxi), D. rugitarsis Moret sp. nov. (Parque Nacional Yacuri, Loja), D. ruizi Moret sp. nov. (Parque Nacional Podocarpus, Loja and Zamora), D. salazarae Moret sp. nov. (Parque Nacional Podocarpus, Loja), D. silvestris Moret sp. nov. (Papallacta, Napo), D. sulcipedis Moret sp. nov. (Parque Nacional Yacuri, Loja), D. verecundior Moret sp. nov. (Mt Illiniza and Mt Corazón, Pichincha) and D. verecundissimus Moret sp. nov. (Mt Chimborazo, Chimborazo). Dyscolus palatus Moret, 1998 is newly synonymized with D. denigratus (Bates, 1891). We demonstrate the subgenus Hydrodyscolus Moret, 1996 to be polyphyletic and therefore consider it a junior synonym of Dyscolus Dejean, 1831.

References

Bates H.W. 1891. Coleoptera. In: Whymper E. (ed.) Supplementary Appendix to Travels amongst the Great Andes of the Equator: 7–39. John Murray, London.

Bousquet Y. 2012a. Description of a new species of Platynus Bonelli from the Appalachian Mountains of eastern North America (Coleoptera, Carabidae). ZooKeys 163: 69–81. https://doi.org/10.3897/zookeys.163.2295

Bousquet Y. 2012b. Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico. ZooKeys 245: 1–1722. https://doi.org/10.3897/zookeys.245.3416

Butcher B.A., Smith M.A., Sharkey M.J. & Quicke D.L.J. 2012. A turbo-taxonomic study of Thai Aleiodes (Aleiodes) and Aleiodes (Arcaleiodes) (Hymenoptera: Braconidae: Rogadinae) based largely on COI barcoded specimens, with rapid descriptions of 179 new species. Zootaxa 3457: 1–232. https://www.biotaxa.org/Zootaxa/article/view/zootaxa.3457.1.1

Camero E. 2003. Caracterización de la fauna de carábidos (Coleoptera: Carabidae) en un perfil altitudinal de la Sierra Nevada de Santa Marta, Colombia. Revista de la Academia Colombiana de Ciencias 27 (105): 491–516.

Chaudoir M. de 1859. Monographie du genre Colpodes MacLeay. Annales de la Société entomologique de France (3e Série) 7: 287–364.

Chaudoir M. de 1878. Révision des genres Onychopterygia, Dicranoncus et Colpodes. Annales de la Société entomologique de France (5e Série) 8: 275–382.

Dejean P.F. 1831. Spécies général des Coléoptères de la collection de M. le comte Dejean. Tome cinquième. Méquignon-Marvis, Paris. https://doi.org/10.5962/bhl.title.8863

Edgar R.C. 2004. MUSCLE: multiple sequence alignment with high accuracy and high throughput. Nucleic Acids Research. https://doi.org/10.1093/nar/gkh340

Erwin T.L., Micheli C. & Chaboo C.S. 2015. Beetles (Coleoptera) of Peru: a survey of the families. Carabidae. Journal of the Kansas Entomological Society 88 (2): 151–162. https://doi.org/10.2317/kent-88-02-151-162.1

Folmer O., Black M., Hoeh W., Lutz R. & Vrijenhoek R. 1994. DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology 3 (5): 294–99.

Gobbi M., Barragán A., Brambilla M., Moreno E., Pruna W. & Moret P. 2018. Hand searching versus pitfall trapping: how to assess biodiversity of ground beetles (Coleoptera: Carabidae) in high altitude equatorial Andes? Journal of Insect Conservation 22 (3–4): 533–543. https://doi.org/10.1007/s10841-018-0082-8

Kearse M., Moir R., Wilson A., Stones-Havas S., Cheung M., Sturrock S., Buxton S., Cooper A., Markowitz S., Duran C., Thierer T., Ashton B., Meintjes P. & Drummond A. 2012. Geneious Basic: an integrated and extendable desktop software platform for the organization and analysis of sequence data. Bioinformatics 28 (12): 1647–1649. https://doi.org/10.1093/bioinformatics/bts199

Kozlov A., Darriba D., Flouri T., Morel B. & Stamatakis A. 2019. RAxML-NG: a fast, scalable and user-friendly tool for maximum likelihood phylogenetic inference. Bioinformatics 35 (21): 4453–4455.https://doi.org/10.1093/bioinformatics/btz305

Lemoine F., Domelevo Entfellner J., Wilkinson E., Correia M., Dávila Felipe M., De Oliveira T. & Gascuel O. 2018. Renewing Felsenstein′s phylogenetic bootstrap in the era of big data. Nature 556: 452–456. https://doi.org/10.1038/s41586-018-0043-0

Liebherr J.K. 1986. Cladistic Analysis of North American Platynini and Revision of the Agonum extensicolle Species Group (Coleoptera: Carabidae). University of California Publications in Entomology 106, Berkeley.

Liebherr J.K. 1992. Phylogeny and revision of the Platynus degallieri species group (Coleoptera: Carabidae: Platynini). Bulletin of the American Museum of Natural History 214: 1–115. Available from http://hdl.handle.net/2246/1625 [accessed 10 Apr. 2020].

Liebherr J.K. 1994. Identification of New World Agonum, review of the Mexican fauna, and description of Incagonum, new genus, from South America (Coleoptera: Carabidae: Platynini). Journal of the New York Entomological Society 102 (1): 1–55.

Liebherr J.K. 1998. On Rembus (Colpodes) brunneus MacLeay (Coleoptera: Carabidae, Platynini): redescription and relationships. Journal of Natural History 32: 987–1000. https://doi.org/10.1080/00222939800770511

Liebherr J.K. & Will K.W. 1996. New North American Platynus Bonelli (Coleoptera: Carabidae), a key to species north of Mexico, and notes on species from the southwestern United States. The Coleopterists Bulletin 50: 301–320.

Lorenz W. 2005. Systematic List of Extant Ground Beetles of the World. W. Lorenz private publication, Tutzing, Germany.

Lorenz W. 2019. CarabCat: Global database of ground beetles (version Oct 2017). In: Roskov Y., Ower G., Orrell T. et al. (eds) Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist. Available from www.catalogueoflife.org/annual-checklist/2019 [accessed 10 Apr. 2020].

Martínez C. & Ball G.E. 2003. Los Platynini (Coleoptera: Carabidae) de Colombia. Biota Colombiana 4 (2): 175–186.

Maveety S.A. & Browne R.A. 2014. Patterns of morphology in carabid beetles (Coleoptera: Carabidae) along a Neotropical altitudinal gradient. International Journal of Tropical Insect Science 34 (3): 157–171. https://doi.org/10.1017/S1742758414000356

Moret P. 1989. Démembrement du genre Colpodes auctorum. I: Individualisation et définition des genres néotropicaux Dyscolus Dejean et Stenocnemion gen. nov. (Col. Caraboidea Platyninae). Bulletin de la Société entomologique de France 93 (5-6): 133–148.

Moret P. 1991. Contribution à la connaissance du genre Stenocnemion (Coleoptera, Harpalidae, Platyninae). Revue française d′Entomologie (N.S.) 13 (2): 65–74.

Moret P. 1996. Mise au point taxinomique sur le genre Dyscolus Dejean et description de cinq espèces nouvelles (Caraboidea, Harpalidae, Platynini). Bollettino del Museo regionale di Scienze naturali – Torino 14 (2): 491–503.

Moret P. 1998. Les Dyscolus de la zone périglaciaire des Andes équatoriennes (Coleoptera, Harpalidae, Platyninae). Bulletin de la Société entomologique de France 103 (1): 11–28.

Moret P. 1999. A contribution to the systematics of Neotropical Platynina. The supra-specific taxa of the Dyscolus complex (Coleoptera, Carabidae, Platynini). In: Zamotajlov D. & Sciaky R. (eds) Advances in Carabidology - Papers dedicated to the Memory of Prof. O.L. Kryzhanovskij: 285–298. Krasnodar.

Moret P. 2005. Los Coleópteros Carabidae del Páramo en los Andes del Ecuador: Sistemática, Ecología y Biogeografía. Pontificia Universidad Católica del Ecuador, Centro de Biodiversidad y Ambiente, Monografía 2, Quito.

Moret P. 2019. Quatre nouvelles espèces de Dyscolus (Stenocnemion) de la Colombie et du Panama (Coleoptera, Carabidae, Platynini). Coléoptères 25 (6): 103–114.

Moret P., Barragán A., Aráuz M.A. & Gobbi M. 2016. Climate warming effects in the tropical Andes: first evidence for upslope shifts of Carabidae (Coleoptera) in Ecuador. Insect Conservation and Diversity 9 (4): 342–350. https://doi.org/10.1111/icad.12173

Perrault G.G. 1991. Etudes sur les Carabidae des Andes septentrionales. VIII. Démembrement du genre Glyptolenus Bates et description d′un genre voisin (Coleoptera). Nouvelle Revue d′Entomologie (N.S.) 8 (1): 43–59.

Ratnasingham S. & Hebert P.D.N. 2007. BARCODING: Bold: The Barcode of Life Data System (http://www.barcodinglife.org). Molecular Ecology Notes 7 (3): 355–364. https://doi.org/10.1111/j.1471-8286.2007.01678.x

Ratnasingham S. & Hebert P.D.N. 2013. A DNA-based registry for all animal species: the Barcode Index Number (BIN) system. PloS ONE 8 (7): e66213. https://doi.org/10.1371/journal.pone.0066213

Riedel A., Sagata K., Surbakti S., Tänzler R. & Balke M. 2013. One hundred and one new species of Trigonopterus weevils from New Guinea. ZooKeys 280: 1–150. https://doi.org/10.3897/zookeys.280.3906

Whitehead D.R. 1973. Annotated key to Platynus, including Mexisphodrus and most “Colpodes”, so far described from North America including Mexico (Coleoptera: Carabidae: Agonini). Quaestiones Entomologicae 9: 173–217.

Will K.W., Liebherr J.K., Maddison D.R. & Galián J. 2005. Absence asymmetry: the evolution of monorchid beetles (Insecta: Coleoptera: Carabidae). Journal of Morphology 264: 75–93. https://doi.org/10.1002/jmor.10319

Published
2020-05-15
How to Cite
Moret , P., & Murienne, J. (2020). Integrative taxonomy of the genus Dyscolus (Coleoptera, Carabidae, Platynini) in Ecuadorian Andes. European Journal of Taxonomy, (646). https://doi.org/10.5852/ejt.2020.646
Issue
No. 646 (2020): Integrative taxonomy of the genus Dyscolus (Coleoptera, Carabidae, Platynini) in Ecuadorian Andes
Section
Entomology

Copyright (c) 2020 Pierre Moret , Jérôme Murienne

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