Literature
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  • Valid names of the spruce cone moth and a related Cydia species (Lepidoptera: Tortricidae). Annals of the entomological society of North America 76(1): 110-111.
  • Perrin 1978
  • Varietal differences in the susceptibility of cowpea to larvae of the seed moth, Cydia ptychora (Meyrick) (Lepidoptera: Tortricidae). Bulletin of entomological Research 68: 47-56.
  • Balmer 1984
  • Vergleichende Untersuchungen zur Morphologie schweizerischer Cnephasiini (Lep., Tortricidae). I. Eier und Jungraupen. Mitteilungen der Schweizerischen Entomologischen Gesellschaft 57: 251-271.