Willow Gall Sawfly - Eupontania pedunculi

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CJohnsonOHBR
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Joined: Mon Jul 27, 2015 10:41 am

Willow Gall Sawfly - Eupontania pedunculi

Post by CJohnsonOHBR » Fri Oct 16, 2015 9:24 am

I think this gall on Salix aurita has been caused by the Willow Gall Sawfly - Eupontania pedunculi. It fits the description in Redfern & Shirley, but it is rather more diffuse and showing more on the upperside of the leaf than the more typical pea shaped galls I have seen. It is possible that the gall is under-developed or just atypical. There was a single internal chamber, but no obvious larva.
Iteomyia capreae galls were also present, but they were characteristically much smaller and grouped.
Comments would be appreciated.
Thank you

Christine
Pontania-pedunculi2.jpg
Pontania-pedunculi4.jpg

diggleken
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Re: Willow Gall Sawfly - Eupontania pedunculi

Post by diggleken » Sun Oct 18, 2015 10:43 am

Whilst I'm no expert Christine, that looks good, simply using the wildguides macro criteria - and the yellowish, slightly raised scar on the upper surface of the leaf is also spot on.
Cheers
Ken

CJohnsonOHBR
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Re: Willow Gall Sawfly - Eupontania pedunculi

Post by CJohnsonOHBR » Sun Oct 18, 2015 12:37 pm

Thank you Ken, your opinion is appreciated.
I am content with the identification, but a second opinion is always useful.
I'm also trying to put the ocaasional non-fungi post on the forum to encourage others to participate.

Christine

diggleken
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Joined: Wed May 13, 2015 3:13 pm

Re: Willow Gall Sawfly - Eupontania pedunculi

Post by diggleken » Sun Oct 18, 2015 3:48 pm

Good, it needs more than just fungi to work really well - I'm with you!

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