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Issue: Vol. 2315 No. 1: 21 Dec. 2009
Type: Articles
Published: 2009-12-21
DOI: 10.11646/zootaxa.2315.1.1
Page range: 1–18
Abstract views: 24
PDF downloaded: 2

Larval morphology of Ectemnostega (Ectemnostegella) montana (Lundblad 1928) (Hemiptera: Heteroptera: Corixidae: Corixinae), with an emphasis on chaetotaxy

Laboratorio de Entomología, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, CONICET. Av. Int. Güiraldes s/n, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
Instituto de Limnología “Dr. R. A. Ringuelet” (ILPLA), CCT- La Plata- CONICET- UNLP, Argentina
Hemiptera water boatmen eggs larvae Corixinae larval morphology chaetotaxy morphometry

Abstract

The genus Ectemnostega Enderlein comprises two subgenera, Ectemnostega and Ectemnostegella. The subgenus Ectemnostegella is distributed in the mountainous areas of Argentina, Bolivia, Chile, and Perú. Ectemnostega (Ectemnostegella) montana (Lundblad 1928), the type species of the subgenus, presents a wide distribution from Perú and Bolivia to northwestern Argentina in the provinces of Salta, Jujuy, Tucumán, Catamarca, and Córdoba. The egg and all five instars of E. (E.) montana are presented for the first time. They are described and illustrated with an emphasis on the morphometry of selected structures and chaetotaxy. The five instars can be separated by means of morphometric relationships and chaetotaxy of the pterothorax, the three pairs of legs, and the abdominal sternites. Comparisons with other species of Corixidae known as larvae are included. The species is recorded from San Luis Province, Argentina, for the first time.

References

  1. Bachmann, A.O. (1981) Insecta Hemiptera Corixidae. Fauna de Agua Dulce de la República Argentina, 35, 2, 1–270.

    Cobben, R.H. (1968) Evolutionary trends in Heteroptera. Part I: Eggs, architecture of the shell, gross embryology, and eclosion. Centre for Agricultural Publishing and Documentation, Wageningen, 475 pp.

    Hungerford, H.B. (1948a) The Corixidae of the Western Hemisphere (Hemiptera). The University of Kansas Science Bulletin, 32, 1–827.

    Hungerford, H.B. (1948b) The Eggs of Corixidae (Hemiptera). Journal of the Kansas Entomological Society, 21, 4, 141–146.

    Jansson, A. (1969) Identification of larval Corixidae (Heteroptera) of Northern Europe. Annales Zoologici Fennici, 6, 289–312.

    Komnick, H. (1977) Chloride cells and chloride epithelia of aquatic insects. International Review of Cytology, 49, 285–329.

    Komnick, H. & Schmitz, M. (1976) Cutaneous chloride absorption from hypo-osmotic concentrations through the chloride cells of Corixa punctata. Journal of insect physiology, 23, 2, 165–73.

    Komnick, H. & Wichard, W. (1975) Histochemischer Nachweis von Chloridzellen bei Wasserwanzen (Hemiptera: Hydrocorisae) und ihre Feinstruktur bei Hesperocorixa sahlbergi Fieber (Hemiptera: Corixidae). Journal of Insect Morphology and Embryology, 4, 89–105.

    Lundblad, O. (1928) Drei neue Corixidengattungen. Zoologischer Anzeiger, 79, 5-6, 148–163.

    Nieser, N. (1977) A revision of the genus Tenagobia Bergroth (Heteroptera, Corixidae). Studies on Neotropical Fauna and Environment,12, 1–56.

    Poisson, R. (1935) Les Hémiptères aquatiques (Sandaliorhyncha Börn.) de la faune française. Archives de zoologie experimentale et générale, 77, 455–563.

    Scheibler, E.E. & Melo, M.C. (2009) Description of immature stages of Ectemnostega (Ectemnostega) quadrata (Signoret 1885) (Heteroptera: Corixidae), with notes on ecological requirements of the species. Aquatic Insects, in press.

    Scudder, G.G.E. (1966) The immature stages of Cenocorixa bifida (Hung.) and C. expleta (Uhler) (Hemiptera: Corixidae). Journal of the Entomological Society of British Columbia, 63, 33–40.

    Signoret, V. (1885) Liste des Hémiptères recueillis à la Terre de Feu par la mission de la Romanche et description des especès nouvelles. Annales de la Société entomologique de France, Série 6, 5, 63–70.

    Stonedahl, G.M. & Lattin, J.D. (1986) The Corixidae of Oregon and Washington (Hemiptera: Heteroptera). Agricultural Experiment Station, Oregon State University, Corvallis, Oregon, USA. Technical Bulletin nº 150.