Propably <a href="https://en.wikipedia.org/wiki/Saxon_wasp" class="extiw" title="en:Saxon wasp">Dolichovespula saxonica</a>, rasping wood for building its nest. Image taken in <a href="https://en.wikipedia.org/wiki/Stuttgart" class="extiw" title="en:Stuttgart">Stuttgart</a>.
<a href="//commons.wikimedia.org/wiki/User:Pjt56" title="User:Pjt56">Pjt56</a> --- If you use the picture outside Wikipedia I would appreciate a short e-mail to pjt56@gmx.net or a message on <a href="//commons.wikimedia.org/wiki/User_talk:Pjt56" title="User talk:Pjt56">my discussion page</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>