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• Rev. Bras. Zool. 4 (3) • 1987 • https://doi.org/10.1590/S0101-81751987000300003   copy

An analysis of the fate of eggs of Gratiana spadicea (Klug, 1829) (Coleoptera: Chrysomelidae: Cassidinae) in relation to the position in the ootheca

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Randomly sampled oothecae of a natural population of Gratiana spadicea from the outskirts of Porto Alegre, RS, were dissected. The overlapping of the egg membranes makes possible to enumerate the eggs in a batch and therefore to relate mortality to position in the ootheca. The ootheca of this cassid provides a spatial refuge for some of its eggs. Successful eggs of G. spadicea amounted to less than one fifth of the total in each batch. Parasitoids and predators were responsible for a high mortality of eggs whatever the size of the ootheca. The main cause of mortality was the eulophid wasp Emersonella ooecia De Santis, 1983. A large proportion of eggs were sucked dry by the mirid Tupiocoris cincticornis (Stal, 1860). The sucked eggs could have contained either the embryo of G. spadicea or the parasitoid in the pre-emergence stages.

An analysis of the fate of eggs of Gratiana spadicea (Klug, 1829) (Coleoptera: Chrysomelidae: Cassidinae) in relation to the position in the ootheca1 1 Part of the data extracted from a Master of Sciences Thesis (Ecology) (UFRGS) by the second author

Miriam BeckerI; Fernando Antonio Frieiro CostaII

IDepartamento de Zoologia, Instituto de Biociências, UFRGS, Porto Alegre, RS; Research Fellow of the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

IIDepartamento de Biologia, Escola Superior de Agricultura de Lavras, Lavras, MG

ABSTRACT

Randomly sampled oothecae of a natural population of Gratiana spadicea from the outskirts of Porto Alegre, RS, were dissected. The overlapping of the egg membranes makes possible to enumerate the eggs in a batch and therefore to relate mortality to position in the ootheca. The ootheca of this cassid provides a spatial refuge for some of its eggs. Successful eggs of G. spadicea amounted to less than one fifth of the total in each batch. Parasitoids and predators were responsible for a high mortality of eggs whatever the size of the ootheca. The main cause of mortality was the eulophid wasp Emersonella ooecia De Santis, 1983. A large proportion of eggs were sucked dry by the mirid Tupiocoris cincticornis (Stal, 1860). The sucked eggs could have contained either the embryo of G. spadicea or the parasitoid in the pre-emergence stages.

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ACKNOWLEDGMENTS

Thanks are due to Dr. José Cândido de Melo Carvalho, Museu Nacional, Rio de Janeiro, for the identification of Tupiocoris cincticornis (Stal, 1860) and to Dr. Luiz de Santis, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Argentina, for the identification of Emersonella ooecia De Santis, 1983.

  • 1
    Boucek, Z., 1977. Descriptions of two new species of Neotropical Eulophidae (Hymenoptera) of economic interest, with taxonomic notes on related species and genera. Bull, ent. Res. 67:1-15.
  • Carroll, C. R., 1977. Besouros, parasitóides e Ipomea (Convolvulaceae): Um estudo sobre discriminação de hospedeiro. Acta amaz. 7 (1):15-22.
  • Carroll, C. R., 1978. Beetles, parasitoids and tropical morning glories: a study in host discrimination. Ecol. Entomol. 3:79-86.
  • Chittenden, F. H., 1924. The argus tortoise-beatle. J. agric. Res. 27 (1):43-51.
  • Clausen, C. P., 1976. Phoresy among entomophagous insects. A. Rev. Ent. 15 (9):343-368.
  • Costa, J. M., 1959. Pragas que atacam o fumo e meios de combate. FIR. Revta bras. Fertil. Inset. Rações 2 (4):42, 44-45.
  • Costa Lima, A. da, 1940. Insetos do Brasil. 2, Hemípteros. 351 pp., Rio de Janeiro, Escola Nacional de Agronomia (Série Didática n. 3).
  • Costa Lima, A. da, 1962. Insetos do Brasil. 12, Himenópteros, 2.ª parte, 393 pp., Rio de Janeiro, Escola Nacional de Agronomia (Série Didática n. 14).
  • De Santis, L., 1948. Un caso interessante de foresia. Notas Mus. La Plata Zool. 13 (104):129-135.
  • De Santis, L., 1979. Catalogo de los himenopteros calcidoideos de America al sur de los Estados Unidos. 488 pp., La Plata, Comision de Investigacion Cientifica.
  • De Santis, L., 1980. Catalogo de los himenopteros brasileños de la serie parasitica incluyendo Bethyloidea. 395 pp., Curitiba, Editora da Universidade Federal do Paraná
  • De Santis, L., 1981. Catalogo de los himenopteros calcidoideos de America al sur de los Estados Unidos - Primer Suplemento. Revta peru. Ent. 24 (1):1-38.
  • De Santis, L., 1983. Las especies argentinas, uruguayas y brasileñas del género Emersonella Girault, 1916 (Insecta, Hymenoptera, Eulophidae). An. Soc. Ent. Brasil. 12 (2):249-259.
  • Freire, A. J. P., 1982. Flutuações na abundância e distribuição espacial de Gratiana spadicea (Klug, 1829) (Coleoptera: Chrysomelidae: Cassidinae) em Solanum sisymbriifolium Lam. (Solanaceae). xviii + 118 pp., 15 figs., Universidade Federal do Rio Grande do Sul, Curso de Pós-Graduação em Ecologia, Porto Alegre (M. Sc. Thesis).
  • Frers, A. G., 1925. Metamorfosis de coleopteros argentinos. Physis, B. Aires 8:82-92.
  • Frieiro-Costa, F. A., 1984. Natalidade e mortalidade no estágio de ovo em Gratiana spadicea (Klug, 1829) (Coleoptera: Chrysomelidae: Cassidinae) em Solanum sisymbriifolium Lam. (Solanaceae). xiii + 116 pp., 15 figs., Universidade Federal do Rio Grande do Sul, Curso de Pós-Graduação em Ecologia, Porto Alegre (M. Sc. Thesis).
  • Hassell, M. P., 1978. The dynamics of arthropod predator-prey systems. 237 pp., Princeton, New Jersey, Princeton University Press.
  • Kershaw, J. C. & F. Muir, 1907. On the egg-cases and early stages of some South China Cassididae. Trans. R. ent. Soc. Lond. part 2:249-252.
  • Kosior, A., 1975. Biology, ecology and economic importance of Cassids (Coleoptera, Chrysomelidae, Cassidinae) of the Ojców National Park. Acta tool. cracov. 20 (9):251-392.
  • Mata, A. B. & R. O. Aravena, 1926. Metamorfosis de un coleóptero del género Gratiana. Revta Soc. ent. argent. 1 (1):31-34.
  • Miller, N.C.E., 1971. The Biology of the Heteroptera. 206 pp., Hampton, Middlesex, E. W. Classey Ltd.
  • Muir, F. & D. Sharp, 1904. On the egg-cases and early stages of some Cassididae. Trans. R. ent. Soc. Lond. part 1:1-23.
  • Price, P. W., 1975. The parasitic way of life and its consequences. In: Price, P. W. (ed.) Evolutionary strategies of parasitic insects and mites, pp. 1-13, 224 pp. New York, Plenum Press.
  • Rolston, L H., R. Mayes, P. Edwards & M. Wingfield, 1965. Biology of the eggplant tortoise beetle (Coleoptera: Chrysomelidae). J. Kans. ent. Soc. 38:362-366.
  • Rosewall, O. W. & C. E. Smith, 1930. The predacious habit of Cyrtopeltis vrians Dist. J. econ. Ent. 23 (6):464.
  • Silva, A. G. d'A., C. R. Gonçalves, D. M. Galvão, A. J. L. Gonçalves, J. Gomes, M. N. Silva & L. Simoni, 1968. Quarto catálogo dos insetos que vivem nas plantas do Brasil, seus parasitos e predadores. v. 2, 622 pp., Rio de Janeiro, Ministério da Agricultura, Laboratório Central de Patologia Vegetal.
  • 1
    Part of the data extracted from a Master of Sciences Thesis (Ecology) (UFRGS) by the second author

    • Publication Dates

    • Publication in this collection
      20 Aug 2009
    • Date of issue
      1987
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