Dusona juvenilis is a species of parasitic wasp belonging to the family Ichneumonidae, subfamily Campopleginae.

Maxillary palps yellow or yellowish red.

Size 7–9 mm, 26–28 flagellomeres in females, 28–31 in males.

Dusona juvenilis can be distinguished from the very similar species D. aemula by the length of the ovipositor and that pleural part of the epicnemial carina being almost completely obliterated, usually with only some wrinkles present medially and/or subdorsally.

[2] Dusona juvenilis is known from a large portion of the Palearctic region: Austria, Belarus, Bulgaria, Finland, France, Germany, Georgia, Greece, Italy, Netherlands, Norway, Poland, Russia (including Siberia), Spain, Sweden, Turkey, Ukraine and United Kingdom.