Eur. J. Entomol. 93 (2): 161-166, 1996
Oviposition-deterring pheromone in Chrysopidae (Neuroptera): Intra- and interspecific effects
- N/A
Substrates contaminated with abdominal secretion of first instar larvae of Chrysopa oculata Say or Chrysopa perla (L.) deter females of these species from ovipositing. The intra- and interspecific responses of the females were similar, however, the smaller species, C. oculata, showed a stronger response overall. Although marking with oviposition-deterring pheromone is independent of encounters with conspecific larvae, the contamination of a paper substrate by crowded larvae increases a female response. The increase in response may be due either to the quantity of the pheromone secretion or the amount of marking or both.
Keywords: Oviposition behaviour, larval marking, spacing pheromone, egg distribution, Chrysopa oculata, C. perla, Chrysopidae
Accepted: January 10, 1996; Published: August 1, 1996 Show citation
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