Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-24T18:50:21.590Z Has data issue: false hasContentIssue false
  • English
  • Français

PHYLOGENETIC RELATIONSHIPS OF NEARCTIC COLYMBETINAE (COLEOPTERA: ADEPHAGA: DYTISCIDAE) BASED ON CHAETOTAXIC AND POROTAXIC ANALYSIS OF HEAD CAPSULE AND APPENDAGES OF LARVAE

Published online by Cambridge University Press:  31 May 2012

Yves Alarie
Yves Alarie
Affiliation:
Department of Biology, Laurentian University, Ramsey lake Road, Sudbury, Ontario, Canada P3E 2C6
Get access Rights & Permissions [Opens in a new window]

Abstract

An analysis of the primary setae and pores (campaniform sensilla) of first instars of 32 species of Colymbetinae, 61 species belonging to other dytiscid subfamilies, and seven species belonging to other families of Hydradephaga was performed to deduce the ancestral system of primary setae and pores of the head capsule and head appendages of Colymbetinae. Sixty-one setae and 46 pores have been assigned to the ground-plan pattern of the colymbetine larva, 27 setae and 20 pores on the head capsule and 34 setae and 26 pores on the cephalic appendages. The pattern proposed for the Colymbetinae is remarkably consistent and similar to the condition observed within the Carabidae. However, members of the Colymbetinae differ strongly from those of Hydroporinae which are characterized by several secondary losses. A preliminary phylogenetic reconstruction of the relationships of colymbetine genera studied based on 41 larval features suggests that the Nearctic fauna includes two monophyletic lineages: (1) (Agabus Leach + Ilybius Erichson) + Agabinus Crotch, and (2) {[Colymbetes Clairville + (Rhantus Dejean + Neoscutopterus Balfour-Browne)] + Matus Aubé}.

Résumé

Sur la base de l’analyse des soies et des pores primaires (sensilles campanoïformes) du premier stade larvaire de 32 espèces de Colymbetinae, de 61 espèces appartenant aux autres sous-familles de Dytiscidae et de sept espèces appartenant à diverses familles d’Hydradephaga, le système ancestral des soies et des pores primaires de la capsule et des appendices céphaliques est élaboré. Soixante et une soies et 46 pores ont été incorporés dans le système ancestral de la larve de Colymbetinae : 27 soies et 20 pores sur la capsule céphalique et 34 soies et 26 pores sur les appendices céphaliques. Si le système ancestral proposé pour les Colymbetinae s’est révélé très semblable à celui des Carabidae, il se distingue, par ailleurs, de celui des Hydroporinae qui est caractérisé par plusieurs pertes secondaires. Une phylogénie provisoire des genres de Colymbetinae étudiés est proposée à partir de l’analyse de 41 caractères larvaires. Dans l’état actuelle des connaissances, il est suggéré que les Colymbetinae d’Amérique du Nord forment deux lignées évolutives distinctes : (1) (Agabus Leach + Ilybius Erichson) + Agabinus Crotch, and (2) {[Colymbetes Clairville + (Rhantus Dejean + Neoscutopterus Balfour-Browne)] + Matus Aube}.

Type
Articles
Information
The Canadian Entomologist , Volume 130 , Issue 6 , December 1998 , pp. 803 - 824
Copyright
Copyright © Entomological Society of Canada 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Alarie, Y. 1991 a. Primary setae and pores on the cephalic capsule and head appendages of larval Hydroporinae (Coleoptera: Dytiscidae). Canadian Journal of Zoology 69: 2255–2265.CrossRefGoogle Scholar
Alarie, Y. 1991 b. Description of larvae of 17 Nearctic species of Hydroporus Clairville (Coleoptera: Dytiscidae: Hydroporinae) with an analysis of their phylogenetic relationships. The Canadian Entomologist 123: 627–704.CrossRefGoogle 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.CrossRefGoogle Scholar
Alarie, Y. 1997. Taxonomic revision and phylogenetic analysis of the genus Oreodytes Seidlitz (Coleoptera: Dytiscidae: Hydroporinae) based on larval morphology. The Canadian Entomologist 129: 399–503.Google Scholar
Alarie, Y., and Delgado, J.A.. 1999: Study of the larvae of Antiporus strigosulus(Brown) (Coleoptera: Dytiscidae) with implications for the phylogeny of the Hydroporini. Aquatic Insects. In press.Google Scholar
Alarie, Y., and Harper, P.-P.. 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.Google Scholar
Alarie, Y., and Nilsson, A.N.. 1996. The larvae of Neonectes J. Balfour-Browne (Coleoptera: Dytiscidae: Hydroporinae) with a description of N. natrix (Sharp) and a discussion of its phylogenetic relationships with members of the tribe Hydroporini Sharp. Coleopterists Bulletin 50: 107–121.Google Scholar
Alarie, Y., 1997. Larvae of Stictonectes (Brink): generic characteristics, description of S. canariensis Machado, and analysis of relationships with other members of the tribe Hydroporini (Coleoptera: Dytiscidae). Coleopterists Bulletin 51: 120–139.Google Scholar
Alarie, Y., Harper, P.-P., and Maire, A.. 1990. Primary setae and pores on legs of larvae of Nearctic Hydroporinae (Coleoptera: Dytiscidae). Quaestiones Entomologicae 26: 199–210.Google Scholar
Alarie, Y., Wang, L.-J., and Yang, P.-S.. 1996. The description of the larvae of Neobectes babai Satô (Coleoptera: Dytiscidae: Hydroporinae) with a discussion of its phylogenetic relationships with members of the Oreodytes scitulus species-group. Coleopterists Bulletin 50: 373–381.Google Scholar
Alarie, Y., Wang, L.-J., Nilsson, A.N., and Spangler, P.J.. 1997. Larval morphology of four genera of the tribe Hyphydrini Sharp (Coleoptera: Dytiscidae: Hydroporinae) with an analysis of their phylogenetic relationships. Annals of the Entomological Society of America 90: 709–735.CrossRefGoogle Scholar
Bertrand, H. 1972. Larves et nymphes des coléoptères aquatiques du globe. F. Paillart, Paris, France.Google Scholar
Beutel, R.G. 1994. On the systematic position of Hydrotrupes palpalis Sharp (Coleoptera: Dytiscidae). Aquatic Insects 16: 157–164.Google Scholar
Bousquet, Y., and Goulet, H.. 1984. Notation of primary setae and pores on larvae of Carabidae (Coleoptera: Adephaga). Canadian Journal of Zoology 62: 573–588.Google Scholar
Kovarik, P.W. 1994. Pupal chaetotaxy of Histeridae (Coleoptera: Hydrophiloidea), with a description of the pupa of Onthophilus kirni Ross. Coleopterists Bulletin 48: 254–260.Google Scholar
Maddison, W.P., and Maddison, D.R.. 1992. MacClade. Analysis of Phylogeny and Character Evolution. Sinauer Associates, Inc., Sunderland, MA.Google Scholar
Thompson, R.G. 1979. Larvae of North American Carabidae with a key to the tribes. pp. 209–291in Erwin, G.E.Ball, D.R. Whitehead, and Halpern, A.L.. (Eds.), Carabid Beetles: Their Evolution, Natural History, and Classification. Dr. W. Junk by Publishers, The Hague.CrossRefGoogle Scholar
Watrous, L.E., and Wheeler, Q.D.. 1981. The out-group comparison method of character analysis. Systematic Zoology 30: 1–11.CrossRefGoogle Scholar
Wiley, E.O. 1981. Phylogenetics. The Theory and Practice of Phylogenetic Systematics. John Wiley & Sons, New York.Google Scholar