I think that is probably a plant in the genus Arisarum based on the almost complete covered inflorescence ("trap-like" structure). In particular, it looks most like Arisarum vulgare (common name: Friar's cowl). This plant is found throughout the Mediterranean region including Italy.
The striped structure with a "lid" isn't a trap, but instead an inflorescence (branch bearing multiple flowers — in this case a spadix with its bract being the "trap"). The inflorescences are from the plant with the rounded-arrowhead shaped leaves.
That leaf shape is characteristic of several genera in the Arum family (Araceae), but the size and very rounded tip looks most like specimens of Arisarum vulgare.
The size and early spring flowering time also fit what is described for this species.
Source: user Hectonichus on Wikimedia Commons —
License: Creative Commons Attribution-Share Alike 3.0 Unported