Tenthredinidae (lode)

Tenthredinidae is the largest family of sawflies, with well over 7500 species worldwide. Larvae are typically herbivores and feed on the foliage of trees and shrubs, with occasional exceptions that are leaf miners, stem borers, or gall makers

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Tenthredo notha (type of sawfly) (Coton NR)

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A large lemon-yellow and black sawfly. Very similar to T. arcuata and T. brevicornis. The species are very difficult to separate without detailed examination. Where the image has not received expert verification, which is necessary to be certain of accuracy in this species, it is highlighted with a red box. For that reason it is only claimed as likely to be this species. Images taken at the end of August would suggest that the species is unlikely to be T. arcuata which flies quite early.
Habitat
Adult takes small insects and visits umbellifers for pollen and nectar
When to see it
From June to September… NatureSpot

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Tenthredo notha

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Description
A large lemon-yellow and black sawfly. Very similar to T. arcuata and T. brevicornis. The species are very difficult to separate without detailed examination. Where the image has not received expert verification, which is necessary to be certain of accuracy in this species, it is highlighted with a red box. For that reason it is only claimed as likely to be this species. Images taken at the end of August would suggest that the species is unlikely to be T. arcuata which flies quite early.
Habitat
Adult takes small insects and visits umbellifers for pollen and nectar
When to see it
From June to September
Life History
The larvae of T. notha are associated with clover species.
UK Status
Fairly common species in Britain

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Birch Sawfly – Cimbex femoratus

Large Birch Sawfly, Cimbex femoratus -1

I have just seen what i am sure was a Birch sawfly in the garden , I was just about to take the shot and I got buzzed by one of my bees that seem to be a little angry after I went in the hives today. So this is a google pic till I get my own