International Journal of Tropical Insect Science

, Volume 7, Issue 6, pp 785–789 | Cite as

Observations of the Biotic Factors Affecting the Populations of Epicerura pulverulenta Hampson (Lepidoptera:Notodontidae)

  • Matthew O. Akanbi
Research Article


Field and laboratory observations of Epicerura pulverulenta Hampson (Lepidoptera:Notodontidae) elucidated the role of biotic factors in the moth’s populations. Natural enemies recorded included Gryon and Telenomus spp (Hymenoptera:Scelionidae) which parasitized 33% of eggs studied. Also, about 4% of the larvae were parasitized by the dipterous tachinids Zygobothria atropivora Robineau-Desvoidy, Exorista xanthaspis Wiedeman, Blepharella sp., and P. quadrizonula (Thompson); and the perilampid Perilampus dubius (Walker), all solitary endoparasitoids. The predators included Belanogaster dubius Kohl. (Vespidae), Glypsus erubescens Dist. (Pentatomidae), Camponotus macuiatus F. (Formicidae) and a kite (bird). They accounted for 12% of larval mortality. In addition, 27% of the 4346 larvae studied developed mycosis caused by Paecilomyces farinosus (Dickson ex Fries) Browne and Smith. A nematode, Hexamermis sp. was also associated with the larvae killing 1.5% of them. High pupal mortality was observed, but the cause was unknown.

Key Words

Epicerura pulverulenta biotic factors 


L’essaie sur le terrain et au laboratoire d’ Epicerura pulverulenta Hampson (Lepidoptera:Notodontidae) à élucide le rôle des elements biotiques du peuplement du papillon nocturne (Lepidoptere). Ses adversaires naturels ont été nomme avec abrages: Grycen et Telenomus spp (Hymenoptera:Scelionidae) qui ont parasite 33% des ceufs étudiées. Aussi environ 4% de la larve à été parasite par le diptere tachinaire Zygobothria atropivora Robineau-Desvoidy, Exorista xanthaspis Wiedeman, Blepharella sp., Carcelia (Carcelia) (Thouson), et Perilampus dubius (Walker), tous les endoparasites solitaires. Les predateurs y compris Belanogaster dubius Kohl. (Vespidae), Clypaus erubescens Dist. (Pentatomidae), Camponotus macuiatus F. (Formicidae) et un cerfvolant (Oiseau) Chelictinia riocourii (Falconidae) Viellot et Qudart. Ils tenait coupte de 12% de la mortalite de la nymphe. Ajoutez y, 27% de 4346 larvae étudie ont developpe le mycosis occassione par Paceilomycees farinosus (Dickson ex Fries) Broune et Smith. Un nematode, Hexamermis sp. à été aussi associe avec la larve, tuant 1.5 d’eux. La mortalité de la nymphe à été observe maus le motif était inconnu.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Alma P. J. (1975) Problems of pest assessment: forestry pests. N.Z. Entomologist 6, 22–23.CrossRefGoogle Scholar
  2. Aubreville A. (1950) Flore Forestiere Soudanoguineene. Societe d’Editions Maritimes et d’Cutre-Mer, A.O.F., Cameroun, A.E.F. Paris.Google Scholar
  3. Giffard P. L. (1974) L’arbre Dan le Paysage Senegalais. Sylviculture en Zone Tropical Seche. Centre Technique Forestier Tropical, Dakar.Google Scholar
  4. Keay R. W. J., Onochie C. F. A. and Stanfield D. P. (1964) Nigerian Trees, Vol. I. Nigerian National Press, Apapa.Google Scholar
  5. Kulman H. M. (1971) Effect of insect defoliation on growth and mortality of trees. A. Rev. Ent. 16, 289–324.CrossRefGoogle Scholar
  6. Okigbo L. (1965) A Guide to Building Timbers in Nigeria. Federal Department of Forest Research, Ibadan.Google Scholar
  7. Poinar G. O. Jr (1971) Use of nematodes for microbial control of insects. In Microbial Control of Insects and Mites (Edited by Burges H. D. and Hussey N. W.), pp. 181–203. Academic Press, New York.Google Scholar
  8. Samways M. J. (1981) Biological Control of Pests and Weeds. (Edward) Arnold, London.Google Scholar
  9. Schimiege D. C. (1963) The feasibility of using a Neoplectanid nematode for control of some forest insect pests. J. econ. Ent. 56, 427–431.CrossRefGoogle Scholar
  10. Taylor T. A. (1975) Gryon gnidus, a scelionid egg-parasite of Acanthomia tomentosicollis (Coreidae) Hem.: in Nigeria. Entomophaga 20, 129–134.CrossRefGoogle Scholar
  11. Taylor T. A. and Omoniyi O. (1970) Variation in number of micropyles in eggs of Acanthomia tomentosicollis (Stal.) (Hemiptera, Coreidae). Nigerian ent. Mag. 2, 70–73.Google Scholar
  12. Vinson S. B. and Iwantsch G. F. (1980) Host suitability for insect parasitoids. A. Rev. Ent. 25, 397–419.CrossRefGoogle Scholar

Copyright information

© ICIPE 1986

Authors and Affiliations

  • Matthew O. Akanbi
    • 1
  1. 1.Forestry Research Institute of NigeriaIbadanNigeria

Personalised recommendations