It is definitely a Tipulidae, but I'm not certain about the identity. It may be Dictenidia, Ctenophora or perhaps even Tipula flavolineata, but I don't thinks so.
Although not all characters are visible, the key in Theowald 1957 runs to Dictenidia bimaculata, one of the most common xylophagous species.
Pjotr Oosterbroek