Tag Archives: Lesser Stag Beetle

Greater and Lesser Stag Beetles Over-Wintering at Gunnersbury Triangle

Tara with two species of Stag Beetle
The (Greater) Stag Beetle is a much bigger beast than the Lesser Stag Beetle
Enormous Stag Beetle larvae found deep underground on roots of dead Pear tree. The body of the larva is soft and white except for the hard brown head and legs, and extremely hard sclerotised black mouthparts, adapted for chewing wood. The plump larvae are a tasty meal for foxes, which can easily sniff out and dig for them in soft earth or rotten wood, so their only protection is to be deep down in a large block of wood. This is part of the value of leaving standing dead wood in the nature reserve; and it explains why we bury logs with several feet of their length below ground!

Stag Beetle at Gunnersbury Triangle

Stag Beetle, just landed, wings not fully folded
Stag Beetle, Lucanus cervus, just landed, wings not fully folded

I was just walking around the triangle, talking to one of the Garden Design students about its natural history, when a mouse-sized animal scurried across the top of a post that we had hammered in to form a dead-hedge above the boundary stones. In my binoculars, it was at once clear what it was, a Stag Beetle. As I pulled out my camera, it spread its wings impressively, and flew a few feet across to the woven top of the dead-hedge, folding its wings but leaving the ends still sticking out of its wing-cases for a while.

Stag Beetle
Stag Beetle, side view

So, all that work on loggeries may have paid off. Or perhaps it didn’t: behind the dead-hedge was simply a pile of brash and logs, abandoned for several years. Anyway, we’re very pleased to see a handsome adult male out in the sunshine.

Azure Damselfly recent hatch
Azure Damselfly recent hatch

The triangle’s first batch of Azure Damselflies, surely within a day of hatching, perched on leaves of emergent water-plants, or flew around in cop, laying eggs already.  One or two Large Red Damselflies sunned themselves also.

Large Red Damselfly
Large Red Damselfly

P.S. A week later, on 4 June, a Lesser Stag Beetle crawled across the lawn in my garden. I guess it emerged from the dead wood stacked in odd corners for that very purpose. It’s a lot smaller than the Stag.

Lesser Stag Beetle in garden
Lesser Stag Beetle in garden

Lesser Stag Beetle, playing dead
Lesser Stag Beetle, playing dead

I picked it up to ensure I got a photo, and was rewarded with a fine display of thanatosis, shamming dead.