Ecological Research

, Volume 2, Issue 2, pp 175–183

Egg size of skippers (Lepidoptera: Hesperiidae) in relation to their host specificity and to leaf toughness of host plants

  • Fusao Nakasuji

DOI: 10.1007/BF02346925

Cite this article as:
Nakasuji, F. Ecol. Res. (1987) 2: 175. doi:10.1007/BF02346925


The adaptive significance of egg size of skippers (Lepidoptera; Hesperiidae) in Japan was evaluated in relation to the leaf toughness of their major host grasses. The hesperids that fed on tougher grasses laid larger eggs. Hesperids that laid larger eggs were larger in body size, but lower in fecundity. They also had a wider host range. Thus, despite the lower fecundity, hesperids may benefit from large eggs by having a wider host range of larvae. Grass feeders had wider range of host plants than broadleaf feeders.

Key words

Egg sizeEvolutionHesperiidaeHost specificityLeaf toughness

Copyright information

© Ecological Society of Japan 1987

Authors and Affiliations

  • Fusao Nakasuji
    • 1
  1. 1.Laboratory of Applied Entomology, Faculty of AgricultureOkayama UniversityOkayamaJapan