First Detection of the Adventive Egg Parasitoid of (Stål) (Hemiptera: Pentatomidae) (Ashmead) (Hymenoptera: Scelionidae) in France.

We report the first detection of in France. More than 1860 sentinel egg masses of (BMSB) were exposed in the field during the 2018-2020 period, and 12 specimens of emerged from one egg mass. Their taxonomic identification was confirmed both by morphological and molecular analysis. , similar to , is an egg parasitoid of BMSB in its area of origin in Asia, and both species are considered to be candidates for a classical biological control strategy against BMSB. was previously recorded in Italy where it is well established and widespread, and this may be the source of the French population. Possible permanent establishment and dispersion of in France should be monitored with emphasis on its potential effect on BMSB populations.