A. Damage caused to grapevine foliage by Japanese beetle adults; B. Istocheta aldrichi (Mesnil) (Diptera: Tachinidae) adult (Photo James O’Hara); C. Cage set at the L’Orpailleur vineyard to allow overwintering of I. aldrichi inside P. japonica mummies; D. P. japonica adults with one (male) and four (female) I. aldrichi eggs on their pronotum; E. Pronotum of P. japonica pierced (red arrow) by neonate I. aldrichi larva; F. I. aldrichi larva, exposed by dissection of P. japonica mummy; G. P. japonica mummy and I. aldrichi pupa; H. Dead (mummified) P. japonica adult lying on the ground with an I. aldrichi pupa inside.

 
 
  Part of: Lasnier J, de Coussergues C-H, Baril A, Vincent C (2025) Abundance of Japanese beetle adults and its parasitoid Istocheta aldrichi in a Quebec commercial vineyard. Bulletin of Insectology 78: 1-10. https://doi.org/10.3897/bull.insectology.152754