Who's ovipositing?

Who's ovipositing?

Observation - Who's ovipositing? - Global. Description: Two different individuals, but I think the same species. Head and thorax mostly green, with blue mark on frons. Thorax mostly submerged.

Two different individuals, but I think the same species.
Head and thorax mostly green, with blue mark on frons. Thorax mostly submerged.