Showing posts with label Galls. Show all posts
Showing posts with label Galls. Show all posts

20 May 2010

Grove Hill, Nr Alcester, Warwickshire

Grove Hill is a small limestone escarpment not far from Alcester. You can walk around the foot of the escarpment on a fairly flat path or make the short but very steep ascent through woodland to the top.

There are a couple of ponds and the first one I came across was teeming with Damselflies. They were mainly these Large Red Damselfly but there were also a smaller number of blue ones




Large Red Damselfly - Pyrrhosoma nymphula
A male and a female  :-)





Broad Bodied Chaser - Libellula depressa

Not a great picture but these guys are very fast and when they do stop they don't come close and if you try to get closer they are easily spooked. There were about 3 of these and I didn't notice any other dragonflies.


View from base of Grove Hill looking towards Oversley Wood

Path along thebase of Grove Hill

Hoverfly - Cheilosia variabilis ?

Click Beetle - Athous haemorrhoidalis

Click beetles named after the click they make when they try to right themselves if they end up on their backs.


The second pond was very low on water and it looked like there had been an attempt to refill it with a hose. Interestingly there were still a load of tadpoles.


What is this?

I saw this on two separate wild rose bushes. A bright orange powdery looking growth. I am guessing that it is some kind of a gall and there is a gall that appears on Wild Rose , Diplolepis rosae . This is more moss like but maybe what I saw was the remains of last years galls?




17 May 2010

Coton Lakes, Warwickshire

Last Saturday I had a wander round ,in North Warwickshire. Glorious sunny day, a bit breezy.

This rather docile Female  Banded Demoiselle was on the path up to the hide and remained on this one piece of grass for  at least 15 minutes. I wondered if it was newly "emerged" and was drying its wings. There were also a number of smaller damselflies close to the river.



 Galls
I came across this sapling with its strange infestation.
This is in  fact the protective casing for a Gall wasp Larvae a tiny creature with a huge bomb proof shelter from which it eventually emerges. The gall is actually produced by the host plant reacting to some chemical trigger and serves as both shelter and food supply for the larvae. Quite fascinating. I think these are last years vacated galls.


Hunting Spider
 I'm not a huge spider fan, they give me the creeps but I came across this Hunting Spider lying in wait on a Nettle leaf so took a picture.

It must have heard the shutter and its aggressive instincts kicked in and it turned and reared up to me..!