Skip to main content
Log in

“Veils” Against Predators: Modified Web Structure of a Host Spider Induced by an Ichneumonid Parasitoid, Brachyzapus nikkoensis (Uchida) (Hymenoptera)

  • Published:
Journal of Insect Behavior Aims and scope Submit manuscript

Abstract

When the larva of Brachyzapus nikkoensis, a koinobiont ectoparasitoid of Agelena limbata forming a funnel web, is a penultimate instar, “veils” of very fine and dense threads covering the spider and parasitoid larva were observed in the tunnel of funnel web. As the veils are not formed until the parasitoid became penultimate instar and the parasitoid larvae are on active hosts at this stage, the veils are considered to be formed by the spider under the manipulation of the parasitoid larva. Removal of the veil indicated that penultimate larvae and pupae were more likely to fail to emerge in manipulated webs compared to the controls. The modified web seems resistant against predators and scavengers such as ants. This is the first record of web modification demonstrating its resistance to predators.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

  • Eberhard WG (2000a) Spider manipulation by a wasp larva. Nature 406:255–256

    Article  PubMed  CAS  Google Scholar 

  • Eberhard WG (2000b) The natural history and behavior of Hymenoepimecis argyraphaga (Hymenoptera: Ichneumonidae) a parasitoid of Plesiometa argyra (Araneae: Tetragnathidae). J Hymenopt Res 9:220–240

    Google Scholar 

  • Fincke OM, Higgins L, Rojas E (1990) Parasitism of Nephila clavipes (Araneae, Tetragnathidae) by an ichneumonid (Hymenoptera, Polysphinctini) in Panama. J Arachnol 18:321–329

    Google Scholar 

  • Fitton MG, Shaw MR, Gauld ID (1988) Pimpline ichneumon-flies. Handb Identif Br Insects 7:1–110

    Google Scholar 

  • Gauld ID (1991) Ichneumonidae of Costa Rica 1. Mem Am Entomol Inst 47:1–589

    Google Scholar 

  • Gauld ID, Dubois J (2006) Phylogeny of the Polysphincta group of genera (Hymenoptera: Ichneumonidae; Pimplinae), a taxonomic revision of spider ectoparasitoids. Syst Entomol 31:529–564

    Article  Google Scholar 

  • Gauld ID, Ugalde-Gómez JA, Hanson PE (1998) Guía de los Pimplinae de Costa Rica. Revista Biologia Tropical 46(Suppl 1):1–189

    Google Scholar 

  • Gonzaga MO (2004) Funções e variabilidade estrutural dos estabilimentos construídos por Cyclosa fililineata Hingston 1932 e Cyclosa morretes Levi 1999 (Araneae, Araneidae). [Ph.D. thesis], Universidade Estadual de Campinas Brazil

  • Gonzaga MO, Sobczak JF (2007) Parasitoid-induced mortality of Araneus omnicolor (Araneae, Araneidae) by Hymenoepimecis sp. (Hymenoptera, Ichneumonidae) in southeastern Brazil. Naturwissenschaften 94:223–227

    Article  PubMed  CAS  Google Scholar 

  • Grosman AH, Janssen A, de Brito EF, Cordeiro EG, Colares F et al (2008) Parasitoid increases survival of its pupae by inducing hosts to fight predators. PLoS ONE 3(6):e2276 doi:10.1371/journal.pone.0002276

    Article  PubMed  CAS  Google Scholar 

  • Iwata K (1942) Biology of some Japanese Polysphincta. Mushi 14:98–102

    Google Scholar 

  • Matsumoto R, Konishi K (2007) Life histories of two ichneumonid parasitoids of Cyclosa octotuberculata (Araneae), Reclinervellus tuberculatus (Uchida) and its new sympatric congener (Hymenoptera: Ichneumonidae: Pimplinae). Entomol Sci 10:267–278

    Article  Google Scholar 

  • Nielsen E (1923) Contributions to the life history of the Pimpline spider parasites (Polysphincta, Zaglyptus, Tromatobia) (Hym. Ichneum.). Entomol medd 14:137–205

    Google Scholar 

  • Nielsen E (1935) A third supplementary note upon the life histories of the Polysphinctas (Hym. Ichneum.). Entomol medd 19:193–215

    Google Scholar 

  • Rechav Y, Orion T (1975) The development of the immature stages of Chelonus inanitus. Ann Entomol Soc Am 68:457–462

    Google Scholar 

  • Tanaka K (1992) Size-dependent survivorship in the web-building spider Agelena limbata. Oecologia 90:597–602

    Article  Google Scholar 

  • Varley GC, Butler CG (1933) The acceleration of development of insects by parasitism. Parasitology 25:263–268

    Article  Google Scholar 

Download references

Acknowledgements

The author would like to express his sincere gratitude to Dr Gavin Broad (The Natural History Museum) for critical reading and improvement of the manuscript. He also thanks Dr Y. Nishikawa (Ottemon Gakuin University), Mrs. T. Masumoto and Mrs. K. Funabiki for the identification of and information on the host spider and Dr S. Ishida (OMNH) for assistance with statistics.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Rikio Matsumoto.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Matsumoto, R. “Veils” Against Predators: Modified Web Structure of a Host Spider Induced by an Ichneumonid Parasitoid, Brachyzapus nikkoensis (Uchida) (Hymenoptera). J Insect Behav 22, 39–48 (2009). https://doi.org/10.1007/s10905-008-9152-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10905-008-9152-1

Keywords

Navigation