The relationship between the mean stream water temperatures for 20 days prior to collection days and the proportion of shrinking Rhyacophila lezeyi pupal cocoons from July to September (2018, 2019 and 2021). The horizontal bars show the range of the daily mean stream temperatures. The numbers above the symbols show the total number of individuals collected.

 
 
  Part of: Aoya K, Hayakawa A, Iwata T, Tanida K (2023) Shrinking pupal cocoons of Rhyacophila lezeyi (Trichoptera, Rhyacophilidae) in a highly acidic stream during the summer season. Contributions to Entomology 73(2): 131-136. https://doi.org/10.3897/contrib.entomol.73.e107479