MickETalbot's picture

Gall (Eupontania pedunculi)

Observed: 25th June 2009 By: MickETalbotMickETalbot’s reputation in InvertebratesMickETalbot’s reputation in InvertebratesMickETalbot’s reputation in InvertebratesMickETalbot’s reputation in InvertebratesMickETalbot’s reputation in Invertebrates
Gall - Eupontania pedunculi

On Salix sp caused by Willow Gall Sawfly

Species interactions

No interactions present.


RHoman's picture

"Salix sp" is not really a

"Salix sp" is not really a sufficiently precise ID of the plant to conclude that it is a particular species of Eupontania. That said, Eupontania pedunculi is probably the most common species and therefore the most likely to turn up - does that count as an identification or just an acknowledgment of the punters' favourite?

Robert Homan

MickETalbot's picture

Robert note

the year of the record 2009, it was recorded as "Ball gall on Willow spp BkPrAv"*, at the time. Not being my main point of interest I never followed it up. However I don't wander far, (I don't drive), and visit the tree, maybe a dozen+ or so times a year. Forgot to mention, my thought at the time was Goat Willow, turned out I was correct. Had you suggested, (as your leading me to believe that your not up on your botany), what, (with the given ID) it was on, as in Goat willow, I would of confirmed it with a simple yes.

* That was just a snippet of the data I recorded at the time.

Respect, I am serious about nature too.

dejayM's picture


I am very tempted to agree with the ID here but cannot for a number of reasons, mainly because I think we need to be more certain about the Salix sp.. and we need more pictures.
However see my recent one and say what you think.

MickETalbot's picture

I think

that I am going to go no further with this as my time is now limited on line. Just one question: Are there any galls identical to this species?

dejayM's picture


Origin 29th Aug
....there are a number of Galls on salix, some look like ours.
Say, for instance, Pontania proxima (just a little)
My initial ID was based on the Euura http://cedarcreek.umn.edu/insects/album/025007035ap.html
This is lovely - but not definitive http://adventuresofawildlife.com/2013/01/31/galls-on-willow-salix-species/
I don't think we can be absolutely certain of anything from a picture but we have come to agree because we feel it's right - I feel yours is right except the hair-lack.
I feel MUCH stronger about mine because I researched it well, in depth and then posted a number of pictures including one of the culprit; but NONE of the adult dissected (it's the only way) because I am not up to it.
Do look through the Other Observations (that's how I came here) and agree where you can or add comment so that posters feel they are not wasting time trying..
I wish you well
PS Despite Rob's hesitation, I am convinced. So I returned today and added an agreement - made me feel good!