I spent few days, visiting friends in different parts of Germany and met my custodian for my dissertation. So, again, the blogpost is late.
Nevertheless, here some more informations about the animals in this special oak tree. Here is one more longhorn beetle – with 10 to 19 mm not as big as the last one, but more colourful: It is Plagionotus detritus (Hornissenbock) – a beetle whose population is strongly vulnerable in Germany. As the former beetle, it needs oaks for its developement.
The next one is Gasterocercus depressirostris (Plattnasen-Holzrüssler) – again it is a species dependent in old oak trees. It is a small beetle with 4-11 mm of size and a relict of the original forests in central Europe. So it needs old oaks with a lot of deadwood to live. As this kind of habitat is scarce in our country, its population is strongly vulnerable in Germany, too.