Nick Upton's picture

Club-horned sawfly

Observed: 10th July 2011 By: Nick UptonNick Upton’s reputation in InvertebratesNick Upton’s reputation in InvertebratesNick Upton’s reputation in InvertebratesNick Upton’s reputation in Invertebrates
Club-horned sawfly (Abia sericea) feeding on Wild angelica (Angelica sylvestris) flowers, chalk grassland meadow, Wiltshire, UK, July.

Feeding on umbel flowers (Wild Angelica i think) in chalk grassland with many Field scabious around, the larval foodplant if I've got the ID right.

Species interactions

No interactions present.


Yashca's picture

What distinguishes this from

What distinguishes this from A. candens, out of interest?

Wildlife Ranger's picture


Abia candens, is rare. As to a key thats another thing


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Yashca's picture

Looking at the NBN map, it

Looking at the NBN map, it seems that A. candens is less common, but very widespread. I'd hesitate to confidently ID one based on rarity.

Nick Upton's picture

"Likely" to be sericea

That's why I recorded as "likely" to be A. sericea, though I thinks it's very likely unless candens has been under-recorded, but you are right that candens can't be 100% ruled out. A. candens is consistently described as rare or "excessively" rare in the UK, and there are only two known sites in Wiltshire, neither very close to my location near Corsham, if the NBN map can be trusted. I read that microscopic examination of males is needed to be sure of the ID, based on the width between the eyes - with the gap in A candens being narrower (half the diameter of an ocellus as opposed to the full diameter) see

Nick Upton, naturalist and photographer.