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A preliminary study on the phylogenetic relationships of Copelatus Erichson (Coleoptera: Dytiscidae: Copelatinae) based on larval chaetotaxy and morphology

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Abstract

The phylogenetic relationships of the diving-beetle (Dytiscidae) subfamily Copelatinae are not well known. Some authors postulated a sister-group relationship between Copelatus Erichson and the remaining Dytiscidae, relying mainly on the absence of a mandibular channel in Copelatus. Other authors suggested a more derived position of the genus. Larval characters have been underutilized in phylogenetic studies, mainly because the larvae of many taxa within the family and, in particular, within Copelatinae are unknown. A comprehensive approach aimed to study the phylogenetic placement of a member of this subfamily based on larval characters has not been produced so far. In this study, the phylogenetic relationships of Copelatus are explored based on a cladistic analysis of 24 taxa and 120 chaetotaxic and morphological characters from larvae. For this purpose, larvae of Copelatus longicornis Sharp are described and illustrated in detail for the first time, with particular emphasis on morphometry and chaetotaxy, with the latter being unexplored until now. The results support a derived position of Copelatus within Dytiscidae, with a sister-group relationship between this genus and a clade formed by the subfamilies Lancetinae, Coptotominae, Laccophilinae, Colymbetinae, Matinae, and Dytiscinae, and part of Agabinae. No evidence was found for a sister-group relationship between Copelatus and the remaining Dytiscidae so that the absence of a mandibular channel in this genus is likely a reduction. Copelatus is supported by three apomorphies within Dytiscidae: mandibular channel absent, internal margin of the stipes with three robust spinulae, and seta MX8 inserted subapically on the galea.

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References

  • Alarie, Y., 1989. The larvae of Laccornis Des Gozis 1914 (Coleoptera: Adephaga: Dytiscidae) with description of L. latens (Fall 1937) and redescription of L. conoideus (LeConte 1850). The Coleopterists Bulletin 43: 365–378.

    Google Scholar 

  • Alarie, Y., 1991. Primary setae and pores on the cephalic capsule and head appendages of larval Hydroporinae (Coleoptera: Dytiscidae: Hydroporinae). Canadian Journal of Zoology 69: 2255–2265.

    Article  Google Scholar 

  • Alarie, Y., 1995. Primary setae and pores on the legs, the last abdominal segment, and the urogomphi of larvae of Nearctic Colymbetinae (Coleoptera: Adephaga: Dytiscidae) with an analysis of their phylogenetic relationships. The Canadian Entomologist 127: 913–943.

    Google Scholar 

  • Alarie, Y., 1998. Phylogenetic relationships of Nearctic Colymbetinae (Coleoptera: Adephaga: Dytiscidae) based on chaetotaxic and porotaxic analysis of head capsule and appendages of larvae. The Canadian Entomologist 130: 803–824.

    Article  Google Scholar 

  • Alarie, Y. & D. T. Bilton, 2005. Larval morphology of Aspidytidae (Coleoptera: Adephaga) and its phylogenetic implications. Annals of the Entomological Society of America 98: 417–430.

    Article  Google Scholar 

  • Alarie, Y. & P. P. Harper, 1990. Primary setae and pores on the last abdominal segment and the urogomphi of larval Hydroporinae (Coleoptera: Adephaga: Dytiscidae), with notes on other dytiscid larvae. Canadian Journal of Zoology 68: 368–374.

    Article  Google Scholar 

  • Alarie, Y. & D. J. Larson, 1998. Larvae of Agabinus Crotch: generic characteristics, description of A. glabrellus (Motschulsky), and comparisons with other genera of the subfamily Colymbetinae (Coleoptera: Adephaga: Dytiscidae). The Coleopterists Bulletin 52: 339–350.

    Google Scholar 

  • Alarie, Y. & M. C. Michat, 2007. Phylogenetic analysis of Hydroporinae (Coleoptera: Dytiscidae) based on larval morphology, with description of first instar of Laccornellus lugubris. Annals of the Entomological Society of America 100: 655–665.

    Article  Google Scholar 

  • Alarie, Y., P. P. Harper & A. Maire, 1990a. Primary setae and pores on legs of larvae of Nearctic Hydroporinae (Coleoptera: Dytiscidae). Quaestiones Entomologicae 26: 199–210.

    Google Scholar 

  • Alarie, Y., P. P. Harper & R. E. Roughley, 1990b. Description of the larvae of eleven Nearctic species of Hygrotus Stephens (Coleoptera: Dytiscidae: Hydroporinae) with an analysis of their phyletic relationships. The Canadian Entomologist 122: 985–1035.

    Google Scholar 

  • Alarie, Y., P. J. Spangler & P. D. Perkins, 1998. Study of the larvae of Hydrotrupes palpalis Sharp (Coleoptera: Adephaga, Dytiscidae) with implications for the phylogeny of the Colymbetinae. The Coleopterists Bulletin 52: 313–332.

    Google Scholar 

  • Alarie, Y., C. H. S. Watts & A. N. Nilsson, 2001. Larval morphology of the tribe Matini (Coleoptera: Dytiscidae: Colymbetinae): descriptions of Batrachomatus daemeli, Matus bicarinatus, and Allomatus nannup and phylogenetic relationships. The Canadian Entomologist 133: 165–196.

    Google Scholar 

  • Balke, M., I. Ribera & A. P. Vogler, 2004. MtDNA phylogeny and biogeography of Copelatinae, a highly diverse group of tropical diving beetles (Dytiscidae). Molecular Phylogenetics & Evolution 32: 866–880.

    Article  CAS  Google Scholar 

  • Balke, M., J. Pons, I. Ribera, K. Sagata & A. Vogler, 2007. Infrequent and unidirectional colonization of hyperdiverse Papuadytes diving beetles in New Caledonia and New Guinea. Molecular Phylogenetics & Evolution 42: 505–516.

    Article  CAS  Google Scholar 

  • Barman, E. H., 2004. A description of the first instar larva of Coptotomus interrogatus (Fabricius) (Coleoptera: Dytiscidae: Coptotominae) with an emphasis on cranial morphology and comments on the phylogeny of basal lineages of Dytiscidae. The Coleopterists Bulletin 58: 661–671.

    Article  Google Scholar 

  • Bertrand, H., 1972. Larves et nymphes des coléoptères aquatiques du globe. F. Paillart, France.

    Google Scholar 

  • Beutel, R. G., 1994. On the systematic position of Hydrotrupes palpalis Sharp (Coleoptera: Dytiscidae). Aquatic Insects 16: 157–164.

    Article  Google Scholar 

  • Beutel, R. G., 1995. The Adephaga (Coleoptera); phylogeny and evolutionary history. In Pakaluk, J. & S. A. Slipinski (eds), Biology, phylogeny, and classification of the Coleoptera. Museum Zoologii PAN, Warzawa: 173–218.

    Google Scholar 

  • De Marzo, L., 1976a. Studio per fini sistematici del comportamento dei caratteri delle mandibole nelle larve di alcune specie della subf. Colymbetinae (Coleoptera, Dytiscidae). Nota preliminare. Entomologica, Bari 12: 73–78.

    Google Scholar 

  • De Marzo, L., 1976b. Studi sulle larve dei coleotteri ditiscidi. IV. Morfologia dei tre stadi larvali di Copelatus haemorrhoidalis F. Entomologica, Bari 12: 89–106.

    Google Scholar 

  • De Marzo, L., 1976c. Studi sulle larve dei coleotteri ditiscidi. VI. Studio per fini sistematici del comportamento dei caratteri delle mandibole nelle larve di alcune specie della subf. Colymbetinae. Entomologica, Bari 12: 179–198.

    Google Scholar 

  • De Marzo, L., 1979. Studi sulle larve dei coleotteri ditiscidi. X. Anatomia e funzionamento dell’aparato succhinate cibario-faringeo in alcune forme larvali delle subff. Dytiscinae, Colymbetinae, Laccophilinae e Hydroporinae. Entomologica, Bari 15: 5–72.

    Google Scholar 

  • De Marzo, L. & A. N. Nilsson, 1986. Morphological variation and fine structure of some head structures in larvae of Dytiscidae (Coleoptera). Entomologica Basiliensia 11: 29–42.

    Google Scholar 

  • Goloboff, P., J. Farris & K. Nixon, 2008. TNT, a free program for phylogenetic analysis. Cladistics 24: 774–786.

    Article  Google Scholar 

  • Guéorguiev, V. B., 1968. Essai de classification des coléoptères Dytiscidae. 1. Tribus Copelatini (Colymbetinae). Izvestija na Zoologitjeskija Institut s Musei Sofia 28: 5–45.

    Google Scholar 

  • Kitching, I. J., P. L. Forey, C. J. Humphries & D. M. Williams, 1998. Cladistics, Second Edition. The Theory and Practice of Parsimony Analysis. Systematics Association publications, 11. Oxford University Press, New York.

    Google Scholar 

  • Larson, D. J., Y. Alarie & R. E. Roughley, 2000. Predaceous diving beetles (Coleoptera: Dytiscidae) of the Nearctic region, with emphasis on the fauna of Canada and Alaska. NRC Research Press, Ottawa, Ontario.

    Google Scholar 

  • Lawrence, J. F., 1991. Order Coleoptera. In Stehr, F. W. (ed.), Immature Insects, Vol. 2. Kendall/Hunt Publishing Company, Iowa: 144–658.

    Google Scholar 

  • Meier, R. & G. S. Lim, 2009. Conflict, convergent evolution, and the relative importance of immature and adult characters in Endopterygote phylogenetics. Annual Review of Entomology 54: 85–104.

    Article  PubMed  CAS  Google Scholar 

  • Michat, M. C., 2005. Larval morphology and phylogenetic relationships of Bunites distigma (Brullé) (Coleoptera: Dytiscidae: Colymbetinae: Colymbetini). The Coleopterists Bulletin 59: 433–447.

    Article  Google Scholar 

  • Michat, M. C., 2006. The phylogenetic position of Hydrovatus Motschulsky: evidence from larval morphology of H. caraibus Sharp (Coleoptera: Dytiscidae: Hydroporinae). Insect Systematics & Evolution 37: 419–432.

    Google Scholar 

  • Michat, M. C. & P. L. M. Torres, 2005. Larval morphology of Macrovatellus haagi (Wehncke) and phylogeny of Hydroporinae (Coleoptera: Dytiscidae). Insect Systematics & Evolution 36: 199–217.

    Google Scholar 

  • Michat, M. C. & P. L. M. Torres, 2006. Hydaticus tuyuensis Trémouilles (Coleoptera: Dytiscidae): larval morphology and phylogenetic relationships within Dytiscinae. Hydrobiologia 563: 479–492.

    Article  Google Scholar 

  • Michat, M. C., Y. Alarie, P. L. M. Torres & Y. S. Megna, 2007. Larval morphology of the diving beetle Celina and the phylogeny of ancestral hydroporines (Coleoptera: Dytiscidae: Hydroporinae). Invertebrate Systematics 21: 239–254.

    Article  Google Scholar 

  • Miller, K. B., 2001. On the phylogeny of the Dytiscidae (Insecta: Coleoptera) with emphasis on the morphology of the female reproductive system. Insect Systematics & Evolution 32: 45–92.

    Article  Google Scholar 

  • Miller, K. B. & M. Balke, 2003. The unusual occurrence of aquatic beetles in amber, Copelatus aphroditae Balke, n. sp. and C. predaveterus Miller, n. sp., (Coleoptera: Dytiscidae: Copelatinae). Proceedings of the Entomological Society of Washington 105: 809–815.

  • Nilsson, A. N., 1983. Ilybius vittiger (Gyllenhal) n. com. (Coleoptera: Dytiscidae), with description of its larval instars. Entomologica Scandinavica 14: 49–56.

    Google Scholar 

  • Nilsson, A. N., 1988. A review of primary setae and pores on legs of larval Dytiscidae (Coleoptera). Canadian Journal of Zoology 66: 2283–2294.

    Article  Google Scholar 

  • Nilsson, A. N., 2001. World Catalogue of Insects, volume 3: Dytiscidae (Coleoptera). Apollo Books, Stenstrup.

    Google Scholar 

  • Nilsson, A. N., 2007. Exocelina Broun, 1886, is the valid name of Papuadytes Balke, 1998. Latissimus 23: 33–34.

    Google Scholar 

  • Ribera, I., J. E. Hogan & A. P. Vogler, 2002. Phylogeny of hydradephagan water beetles inferred from 18S rRNA sequences. Molecular Phylogenetics & Evolution 23: 43–62.

    Article  CAS  Google Scholar 

  • Ribera, I., A. P. Vogler & M. Balke, 2008. Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae). Cladistics 24: 563–590.

    Article  Google Scholar 

  • Ruhnau, S., 1986. Phylogenetic relationships within the Hydradephaga (Coleoptera) using larval and pupal characters. Entomologica Basiliensia 11: 231–271.

    Google Scholar 

  • Ruhnau, S. & M. Brancucci, 1984. Studies on the genus Lancetes. 2. Analysis of its phylogenetic position using preimaginal characters (Coleoptera, Dytiscidae). Entomologica Basiliensia 9: 80–107.

    Google Scholar 

  • Sharp, D., 1882. On aquatic carnivorous Coleoptera or Dytiscidae. Scientific Transactions of the Royal Dublin Society 2: 179–1003.

    Google Scholar 

  • Shaverdo, H., M. T. Monaghan, D. C. Lees, R. Ranaivosolo & M. Balke, 2008. Madaglymbus, a new genus of Malagasy endemic diving beetles and description of a highly unusual species based on morphology and DNA sequence data (Dytiscidae: Copelatinae). Systematics and Biodiversity 6: 43–51.

    Article  Google Scholar 

  • Spangler, P. J., 1962. Natural history of Plummers Island, Maryland. XIV. Biological notes and description of the larva and pupa of Copelatus glyphicus (Say) (Coleoptera: Dytiscidae). Proceedings of the Biological Society of Washington 75: 19–24.

  • Watts, C. H. S., 1963. The larvae of Australian Dytiscidae. Transactions of the Royal Society of South Australia 87: 23–40.

    Google Scholar 

  • Wiley, E. O., 1981. Phylogenetics. The theory and practice of phylogenetic systematics. Wiley, New York.

    Google Scholar 

  • Williams, F. X., 1936. Biological studies in Hawaiian water-loving insects. Part I: Coleoptera or beetles. Proceedings of the Hawaiian Entomological Society 9: 235–273.

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Acknowledgements

We thank the two anonymous referees whose comments greatly improved this manuscript. Field and laboratory work by the authors were supported in part by grant PIB X846 from the Universidad de Buenos Aires.

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  1. CONICET - Laboratorio de Entomología, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Av. Int. Güiraldes s/n, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina

    Mariano C. Michat & Patricia L. M. Torres

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  1. Mariano C. Michat
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  2. Patricia L. M. Torres
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Correspondence to Mariano C. Michat.

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Michat, M.C., Torres, P.L.M. A preliminary study on the phylogenetic relationships of Copelatus Erichson (Coleoptera: Dytiscidae: Copelatinae) based on larval chaetotaxy and morphology. Hydrobiologia 632, 309–327 (2009). https://doi.org/10.1007/s10750-009-9853-2

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