Picture of an insect that Jennie saw in the garden of Lourmarin Castle ...
(you have to know where to find it - centre of picture, right on top of the tallest of the pink flowers)
From Menerbes take the road across the hills (Luberon) to Lourmarin. Usually a quiet place, but we were there on a market day and had some trouble parking our car. A visit to the castle is very worthwile: rooms with interesting furniture, courtyard with balconies, all in Renaissance style.
There's this dolmen, of course, that's a definite must see ..., it's along the road from Menerbes to Bonnieux, right on a spot where the road crosses a small ditch.