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Tag Archives: Cornus sanguinea

Dogwood berries

22 Sunday Sep 2024

Posted by sconzani in autumn, plants

≈ 2 Comments

Tags

autumn berries, autumn colour, Common dogwood, Cornus sanguinea, Cornus sericea, Dogwood, Red-osier dogwood

To celebrate the Autumn equinox I thought I’d share some berries, and for this post I’ve confined my enthusiasm for all berries to a shrub that really comes in to its own at this time of year, Dogwood. The species I see most often is Common dogwood (Cornus sanguinea), which grows in hedgerows and along woodland edges, the twigs of which have previously had an interesting use, according to the Woodland Trust website:

The origin of the name comes from the smooth, straight twigs which were used to make butchers’ skewers. Skewers used to be called ‘dags’ or ‘dogs’, so the name means ‘skewer wood’.

240922 dogwood

I only noticed this second species of Dogwood quite recently, and then only because of its stunning berries that start out as tiny globes of purple before turning a bright snowy white. This is Red-osier Dogwood (Cornus sericea), which is usually a cultivated species grown in parks and gardens but which escapes that controlled setting to become naturalised in wilder places.

240922 red osier dogwood

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322/366 Leaf mines: Phytomyza agromyzina

17 Tuesday Nov 2020

Posted by sconzani in autumn, insects, leaves, plants

≈ Comments Off on 322/366 Leaf mines: Phytomyza agromyzina

Tags

Cornus sanguinea, Dogwood, fly leaf mines, leaf mines, leaf mines on Dogwood, leaf-mining fly larvae, leaf-mining larvae, leafminers, Phytomyza agromyzidae

So far, in my recent posts on leaf mines, I’ve only covered a few of the many micro moths whose larvae make mines in leaves. But many fly species also inhabit leaves in their larval stage, and today’s post is about one of those, Phytomyza agromyzina.

201117 Phytomyza agromyzina (1)

You will probably never see the tiny adult fly (and, in fact, I haven’t even been able to find an illustration of one online, though this Wiki page shows an example of one member of the Agromyzidae fly family, which will give you a general idea.) but, anytime between July and November, you should be able to find its larvae’s leaf mines, as it’s probably widespread in Britain (though under-recorded, so if you do find some, please record your sighting).

201117 Phytomyza agromyzina (2)
201117 Phytomyza agromyzina (3)

The mines I’ve found have all been on the leaves of Dogwood (Cornus sanguinea), though it is known to mine other species of Cornus. They’re gallery mines (i.e. forming corridors), long and meandering through the upper side of the leaf surface, and almost completely filled with frass (i.e. poo).

201117 Phytomyza agromyzina (4)

The UK Fly Mines website provides more detailed information on this, and the many other types of leaf mines you can find in Britain.

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About me

sconzani

sconzani

I'm a writer and photographer; researcher and blogger; birder and nature lover; countryside rambler and city strider; volunteer and biodiversity recorder.

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