Transverse section of gall of Adelges cooleyi (Gillette, 1907) with nymphs inside, USA. Photo & copyrights: Whitney Cranshaw, https://www.insectimages.org/browse/detail.cfm?imgnum=5422255.

 
 
  Part of: Gavrilov-Zimin IA (2024) Gallophilous theory of cyclical parthenogenesis in aphids (Homoptera, Aphidinea). Comparative Cytogenetics 18: 247-276. https://doi.org/10.3897/compcytogen.18.136095