Aggressive Chemical Mimicry by a Bolas Spider

  title={Aggressive Chemical Mimicry by a Bolas Spider},
  author={William G. Eberhard},
  pages={1173 - 1175}
Mature female Mastophora sp. spiders attract prey with a volatile substance which apparently mimics the female sex attractant pheromone of the fall armyworm Spodoptera frugiperda (Lepidoptera). The rate of prey capture is similar to that of a conventional orb weaver of comparable body size. 

Detection of Prey by a Spider that Aggressively Mimics Pheromone Blends

Ability to sample for prey presence may allow this predator to adapt its hunting activity to the temporal and spatial availability of its prey and, thereby, may reduce the constraints associated with extreme prey specialization.


Phoroncidia studo constructs snares consisting of single, more or less horizontal sticky lines. Fragmentary evidence suggests that the sciarid fly Bradysia sp. nr. coprophila may be attracted to

Aggregation in Bark Beetles

Bark beetles belong to the family Scolytidae, many of which aggregate on their host trees and then breed in the host tissues, and some colonize living trees, and others, recently fallen timber.

Evidence against a genus Tadashi Miyashita ' , moth attraction by Cyrtarachne , related to bolas spiders

Results suggest that Cyrtarachne does not seem to attract male moths, and prey comprised both sexes of various species, with the sex ratio of 0.77 in favor of females.

Aggressive chemical mimicry of moth pheromones by a bolas spider: how does this specialist predator attract more than one species of prey?

The bolas spider attracted both prey species outside their normal activity windows and results support the idea that bolas spiders produce components of both species at all times rather than producing the pheromone of each prey species at different times of the night.

Aggressive Chemical Mimicry by the Bolas Spider Mastophora hutchinsoni: Identification and Quantification of a Major Prey's Sex Pheromone Components in the Spider's Volatile Emissions

The results indicate that the adult female M. hutchinsoni produces an allomone blend that mimics not only the composition, but also the blend ratio, of the sex pheromone of a major prey species.

Special Adaptations of Orb Weavers and Prey

Orb weaving spiders have devised both webs and special devices for capturing prey. The prey have also evolved mechanisms for eluding spiders and forliving with them. Some of the mechanisms involved

Ecology of a bolas spider, Mastophora hutchinsoni: phenology, hunting tactics, and evidence for aggressive chemical mimicry

  • K. Yeargan
  • Biology, Environmental Science
  • 2004
This report is the first complete documentation of the population phenology of any bolas spider and suggests that mating activity of these moth species may be temporally isolated, a common phenomenon when sympatric species have similar pheromones.

Juvenile bolas spiders attract psychodid flies

This is the first reported evidence that, during early developmental stadia before these spiders attract moths, juvenile bolas spiders attract their prey.

Prey composition of three Dipoena species(Araneae: Theridiidae)specializing on ants.

Examination of species and size compositions of prey in the three Dipoena spiders specializing on ants found the number of prey fed at a time increased with the spider body size, and most spiders fed on a single prey.



Sex Pheromone of the Fall Armyworm Moth: Isolation, Identification, and Synthesis

The sex pheromone of the female fall armyworm. Spodoptera furgiperda (J. E. Smith), was isolated and identified as cis -9-tetradecen-1-ol acetate. The chemical structure was verified by synthesis.

Fall Armyworm: Disruption of Pheromone Communication with Synthetic Acetates

Four synthetic acetates and an alcohol were field tested in traps as possible sex attractant inhibitors for the fall armyworm and reduced the attraction of males to females 90–100%.

I noted 86 moth approaches in 517 minutes on 12 different nights. A moth was scored as having approached if it hovered for more than 3 seconds within 1 m downwind of a spider

    Las Plagas de la Cafia de Azucar en Venezuela

    • 1962

    On the basis of a consideration of the kinetics in vitro and cellular nucleotide concentrations

    • Can. J. Biochem
    • 1976

    The Lesch-Nyhan syndrome is an X-linked spastic neurologic disorder associated with accelerated purine metabolism and almost complete absence of HPRT activity

      A. deVries, 0. Sperling, ibid

      • 1976

      Universidad del Valle. I thank M. Birch, H. Dahners, and A. Shapiro for help with the moths, and

        Lower and higher values have been reported [see A. W. Murray

        • J. Biol. Chem
        • 1967

        The spiders' weights fluctuated as a result of periodic production of egg masses weighing about 350 mg

        • Moths averaged 60 mg (wet weight) (N = 9