help with id of galls/eggs please

[the naturelover]

Hi can anyone help with names for these please.

thank you
regards tn.

[Adam Cheeseman]

1.5.6 are probably species of Eriophyes

Cheers

Adam

[JRsbugs]

The first one on Sycamore will be Aceria macrorhynchus. I found it recently too.

NatureSpot

It would help to know what the others are on.

Janet

[poschiavanus]

For galls it is essential to note the host plant: although sometimes its quite fun to try and identify the host plant from the gall (see Fungal Plant Parasites passim). If you don't know the host plant, take a picture showing the whole leaf.

1. A mite gall on Sycamore. There are actually two recorded in Britain. Aceria cephaloneus and Aceria macroryhncus, with the latter's galls supposed to be taller and pointed. All the one's I've seen have rounded tops and have not reached close to 6 mm, so I tend to record under A. cephaloneus. But who knows! These are exceedingly common, one's we hope to find in the car park when on field meeting.

2. This is the mysterious object which has not been successfully identified over several seasons on WAB. See this thread.

3. & 4. I'm assuming these are the same, and on Rowan is another very common mite gall. Eriophyes sorbi.

5. & 6. Aceria aceriscampestris on Field Maple. I'm led to believe this might get 'lumped' with the sycamore nail gall mites at some time.

If you turn the Sycamore leaves over you might find patches of hairs caused by yet another mite. Lime trees will also tend to be showing a few easily found mite galls.

[JRsbugs]

I posted my galls on Sycamore on a new thread, they are tall..

Sycamore Gall Aceria macrorhynchus?

[the naturelover]

Thank you all for the very informative answers.
regards tn.