Update

The sawfly larva I showed here a couple of weeks ago has now been identified as Arge gracilicornis. This species feeds on Raspberry and Bramble leaves.

Geometry

Can anything in nature be more geometric than ferns?

At this time of year the spores are mature and the sporangia, or spore-bearing structures, are beginning to rupture and discharge their contents to start the life cycle one more time.

Each species of fern has its own way of maximising the space available for spore production. This is Lady Fern - Athyrium filix-femina - which has very delicate fronds with curved sporangia:

Scaly Male Fern - Dryopteris affinis - on the other hand, has very round sporangia in much straighter rows.

I'll try for shots of other ferns in the next couple of days.

Slowing down

Things are definitely getting colder now, and the morning dew clearly shows how many spider webs there are on the Gorse:

I wonder what the spider thinks when it sees a host of water droplets in its web for the first time:

This close-up shows that the droplets have even more minute droplets in between them:

We appear to have quite a heavy crop of Haws this year:

Even though most insects have now gone for the year, Ivy continues to provide valuable autumn and winter nectar for the few hoverflies and bees that are still around. A sunny spell will make Ivy worth looking at just in case:
This curious fuzzy bobble on Germander Speedwell took me some considerable time to identify when I first spotted it a few years ago:
It's a gall caused by the plant louse Jaapiella veronicae. If you open the gall you'll find tiny larvae living inside it.

Cold moths

As I write, the first sub-zero temperatures of the season are about to arrive, but moths are still arriving at light. Some, like the Red-Green Carpet moth below, are nearing the end of their season; others are about to emerge for the first time this year, and still others are emerging for their second brood of the year.

The Red-green Carpet can often be more green than the Green Carpet: this specimen hasn't got the slightest trace of red anywhere, but the diagnostic white blotch at the outer edge of the wing is just enough to convince me of its identity:

The Spruce Carpet is bivoltine: it has two generations per year. I suppose two generations increase the chance of reproduction, but it makes the moth interesting in that it can tolerate heat and cold at all stages of its lifecycle:

The Feathered Thorn, on the other hand, is most certainly a cold-weather specialist. Thorn moths are generally seen later in the year - hence the 'fallen-leaf' appearance of the wings - and this male clearly shows where the 'feathered' comes from: those antennae look very much like feathers.

Light is our toy

Yet another day of wonderful light, so I went out several times during the day.

The patch of Phaeolepiota aurea has continued to expand (I think it might be a ring-forming fungus), and this mature specimen had dew on the cap surface:

A vertical close-up provides a nice abstract shot:

This Fenusa dohrnii sawfly larva was clearly visible as it mined the Alder leaf:

Yet another sawfly larva on Bramble:

This Autumn Hawkbit flower is just in the process of opening from the bud:

A couple of shots of the hoverfly Eristalis tenax on Smooth Hawksbeard:

Lovely eyes.

Sunniest day of the year

After early mist lifted, we had a clear blue sky and 22 degrees: we might get 2 days like this a year. So off up to the forestry to see what was going on.

Eristalis Hoverflies are still in evidence, and the males were holding station on the pathway:

Manual focus on those!

This little Braconid wasp was one of many looking over and under Willow leaves. They're probably still looking for the last of the sawfly larvae to parasitise:

Those of you who have been following my travels will know exactly how I feel about Slender St. John's Wort. The specific name 'pulchrum' shows what the people who named this in the 1700's thought of it, too:

This tiny (3 mm) Chrysomelid beetle was posed adjacent to next year's Willow leaf bud:

And finally - just to convince ourselves that we actually are in October - a solitary specimen of the Deceiver, Laccaria laccata:

More new species

This Green-brindled Crescent moth took me a while to identify, although it's rather distinctive once you know the main identification features. These boil down to the presence of green scales in the mid-wing area and the pale 'drawn crossbow' mark where the rear wing edges overlap.

The moth lives on larger shrubs, especially old Hawthorn.

As I was checking the various moths, I suddenly heard a very loud droning and this Necrodes littoralis Burying Beetle landed and proceeded to fold its (surprisingly large) wings:

Burying Beetles excavate beneath animal carcasses, effectively burying them for their larvae to feed on. Beetles, along with fungi, are our main recyclers.

That's two more new species for my list, which is currently standing at 1386 species. I suspect number 1400 will be found sometime in April/May next year.