Reservoir path at Tudeley

Its very late in the year now, and hoverflies seem few and far between. The weather was poor, with a cool breeze blowing clouds across the sky intermittently threatening rain. However I wanted to try an area that had water near by, with a chance of a few remaining flowers, as dry flowerless areas seem to make very poor hunting grounds. The reservoir path at Tudeley looked good, although ideally I would be out reasonably early in the morning, not towards the end of the afternoon.

I was looking for anything and everything: spiders, bugs, leaf-miners and fungi. I moved slowly, hoping that shyer stuff would show itself. Suddenly I saw a small hoverfly moving slowly low down in the foliage by the side of the path, and on first sight it looked as though it had a waisted abdomen, and I thought could this be my first Baccha elongata, long overdue for such a common species. So it turned out, although the photos were tricky, and it could be argued that I should stick to Baccha sp. as an ID, allowing for a split to be re-established between the two original species suspected to exist in the UK, Baccha elongata and Baccha obscuripennis. This is a female, the males may be even  more elongate!

The eyes on this fly look almost absurdly large and wide on the head, especially in comparison to the very narrow abdominal segment 2! I am so glad to see this species at last, this individual presumably being part of the known second peak in the year, which is said to be in September by S & F.

The yellow banding on the rear edges of tergites 2 and 3 are more visible in this blurry photo of the insect in flight:

The abdomen didn't seem swollen with eggs in the next photo, and I couldn't see any of the reddening of the female abdomen that often seems to be associated with such swelling.

In some of the photos on the web (although I don't get much of this from my photos except maybe this last one) it looks as though the wings are slightly spotted, with the stigma and a couple of slightly discoloured cross veins all about half way along the wings, and maybe at the tip. On the website "LifeDesks Flower Flies Syrphidae (entry by Ximo Mengual)" it quotes the following "cross-veins and extreme apex of the wing faintly clouded in some specimens", so that seems to fit.

The yellow rear edges in this photo look a bit more like spots than bands here, although this isn't supported by the photo of the fly in flight - again however there is some support from this on the LifeDesks website entry. Tergite 4 looks to have the start of some yellow at the rear of the tergite, small hints of triangles on  the lower sides. I also think I believe some yellow dusting (pruinose?) on the lower thoracic pleura.

This fly is said to be rather a shade-lover, and rather more difficult to spot than some! Having seen one I'll have to keep my eye out for some more! The habitat here certainly fitted part of the S & F habitat profile, a shady woodland ride, quite humid with nettle beds close to hand.

Ranscombe Farm with the Field Club

Myathropa florea, Eristalis tenax, Eristalis pertinax, Eristalis arbustorum, Sphaerophoria scripta, Episyrphus balteatus, Melanostoma scalare, Volucella inanis,

Interesting solitary wasps

Both Acerias on Acer

Corncockle, Nettle-leaved Bellflower, Fluellens, Ground Pine, Blue Pimpernel, Stinking Iris,

Greensand Way path down from West Peckham

Episyrphus balteatus, Myathropa florea, Melanostoma scalare, Epistrophe grossulariae, Syrphus vitripennis/rectus, Eristalis pertinax, Dasysyrphus albostriatus, Eristalis arbustorum, Meliscaeva auricollis, Sphaerophoria, Cheilosia illustrata, Chelosia sp., Common Red Soldier Beetle,

Hedge Woundwort, Black Horehound, Fireweed, Hogweed, Dandelion, Nettle, Ivy, Sycamore seedlings, Enchanters Nightshade, Alkanet, Lettuce, Coltsfoot, Nipplewort, Roberts Weed, Selfheal, Geum urbanum,

Green Woodpecker heard. Kestrel overflying Matthews Lane on way back. 

Haysden Country Park

A bright male Eristalis arbustorum photographed well with most characters seen: whitish face, bright abdominal pattern, yellow on T2 continuous with T3, pale base to hind tibia, swollen hind metatarsus, dark tip to mid tibia, dark tips to mid and front tarsi, a hint of long hairs on arista in one photo.

This picture concentrates on the swollen hind metatarsus.

Also seen were Eristalis pertinax I think, and Eristalis tenax definitely. 

To the Pheasantry and back.

Eristalis arbustorum and Eristalis pertinax, bug, Carder bee, white/buff tailed bee, honey bee, Volucella pellucens,  Episyrphus balteatus, Small White, Gatekeeper, Meadow Brown, Speckled Wood, Pararge aegeria, Holly Blue, Common Carpet, seven spot ladybird, spider.


Spearmint, meadow vetchling, vetches, water mint, water parsnip, common centaury, ragwort, yellow loosestrife, woody nightshade, yarrow, common knapweed, black horehound,                  

Back to Dene Park

I found a nice moth on the grassy meadow which I think must be a species of Epirrhoe, perhaps the Common Carpet, Epirrhoe alternata.

Interesting to see the greyish tuft of hairs on the side of the thorax of this female Episyrphus balteatus. She seems to have a swollen abdomen (full of eggs?) and to be taking pollen directly from the anther. Note also the small facial bump, the whitish frons with the small dark Y above the antennae and the longitudinal stripes on the top of the thorax.

I photographed two Eristalis and both of those turned out to be male Eristalis pertinax.

Damp meadow

A short walk down to the damp meadow by the River Bourne demonstrated once again the great diversity of flowers there, with plenty of Hawkweed, Bristly Oxtongue, Fleabane, Ragwort,  Mayweed, Birds-Foot Trefoil, Meadowsweet, Mint, Knotgrass and a small yellow trefoil of some sort, all in full flower. Last year there were plenty of Common Blue butterflies, but I didn't see any today. There was however a minute skipper, possibly an Essex Skipper, although I could not get around to looking at the underside of its antennae tips.

The other Lepidopteran seen - apart from the usual grass plumes - was a Shaded Broad Bar, Scotopteryx chenopodiata (confirmed almost instantly on ispot).

There was also this odd fly, plunging its proboscis deep into the flower throats of this mint head

Not much variety in the hoverflies, but particularly good for Sphaerophoria scripta, 

together with some Episyrphus balteatus

and a couple of Eristalis tenax.

and there was one of the very common (this year at least) Myathropa florea.

On the way down by the side of the footpath beside the large OSR field, I found a nice Syritta pipiens, so recognisable by its size, shape and jizz. you can see the rear tibiae colour pattern slightly more clearly in the second photo.