Showing posts with label Hygrocybe nigrescens. Show all posts
Showing posts with label Hygrocybe nigrescens. Show all posts

Friday, 20 August 2010

Respite

The rain has abated slightly and I found these Blackening Waxcaps - Hygrocybe nigrescens - in various stages of development on my lawn:



Waxcaps are primarily grassland species, and their presence on my lawn is very welcome: they are an indicator of 'unimproved' grassland, with associated benefits to wildlife. I'd expect to see a succession of Waxcap species as the years progress.

Xylaria polyforma - Dead Man's Fingers - is associated with Beech:

I found this Sawfly larva feeding on Meadowsweet:

Sawfly larvae are distinguishable from those of moths and butterflies primarily by their extra prolegs, but once you get your eye in, there's very little doubt and counting isn't required. Sadly, as I've mentioned before, Sawflies are very badly under-documented, and a trawl through the Meadowsweet species failed to turn up a match.

Coincidentally, I saw this adult Sawfly no more than a metre away from the larva, on Angelica. Wouldn't it be nice if......naaah.....erase that thought.


Thursday, 30 July 2009

Occasional names

I saw what appeared to be a minute, strangely-coloured ladybird on the Ragwort and it was only when I blew up the image that I could identify it as a teneral (freshly emerged, and not yet fully-coloured) 10-spot Ladybird - Adalia decempunctata. These are about 3-4 mm. long, so that makes the beetle below it about 1 mm long.


Few Tachinids can be successfully named from pictures, but this is one of them. Eriothrix rufomaculata (named after the distinctive red marks on the abdomen) is a bit of an enigma: it is readily identifiable, but its host and larval stages are unknown. I only ever see it on Ragwort, so Cinnabar moth comes easily into the frame, but the fly has never been reared from them.


Moving on from one nameable beast to another, the ichneumonid on the left is Amblyteles armatorius. Its size can be easily reckoned from the neighbouring Tree Wasp - Dolichovespula norwegica. It's really good to be able to show these close relatives side by side. They aren't particularly dangerous to each other, but the ichneumonid is keeping a very close watch on the wasp - note the antennae.

That wasn't a chance shot, by the way: I noticed the ichneumonid was gradually approaching the Tree Wasp and waited until it was right next to the wasp before I rattled off a few shots.

Angelica is a major nectar source for many insects at this time of year. Female ichneumonids are swarming over the florets, refuelling before they go off in search of hosts.



Evacanthus interruptus is one of the more scarce leaf hoppers in this area. I might see one or two per year.

Phyllonorycter moths are minute - only a couple of millimetres long as adults. This is the mine of Phyllonorycter maestingella, on Beech. The larva tucks the lower surface of the mine a few times, contracting it and pulling the upper surface into a dome, thereby making a tube to live and feed inside.


This glimpse of the emerging Blackening Waxcap - Hygrocybe nigrescens - reminds me that the fungal season is almost upon us. It's time to dust down the fungal part of my brain.