52.012 BF0374  –  Sesiidae –  Sessiinae – Synanthedon vespiformis – Yellow-legged Clearwing – (Linnaeus,1761) Adult Macro:  CAT 2 – Can be confused with other species – Good photographs maybe required – Can be confused with other species       PDF Icon – click for Adult Macro Verification Guidelines

Green –  Rare / Uncommon / Scarce        day-flying – Day-flying
Taxonomy:   Macro   >>  Sesiidae  >> Sessiinae
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Currant Clearwing; Six-belted Clearwing
ID pointers: Yellow and black bands along the abdomen and yellow legs.
Distribution:  (Last record: 4 July 2025 at Glossop )  –  Nationally Scarce B. A rare and notable species in Derbyshire and a probable resident.The larvae feed on 2 year old Oak(Quercus) stumps and where the foodplant exists and in the right conditions, it may well be a common species albeit in isolated colonies. Another wasp-mimic so probably overlooked. Easiest way to record is by the use of pheromone lures.
General Comment: None
Flight Period: May /  June /  July /  August –  On the wing May – August.  – but can be disturbed during the day Photographed: Yes –  Photographed By: Anne Butler, Christian Heintzen  © All Rights Reserved
*** Last updated on 15 January 2026 by TD ***
Forewing: 10-12mm Food Plant: Usually on Pedunculate Oak, but also a wide range of other deciduous trees.
Males come readily to pheromone lures. As with other related species the larvae feed internall on the wood of their preferred food plant. In this cas it is Oak (Quercus) and they prefer two year old tree stummps. Due to precise food requirements, this could be a reason for their scarce status.
Last Recorded Year: 2025
Last Recorded By – Christian Heintzen
Last Recorded General Area – Glossop

Selected Images:  Anne Butler © – To VES Lure -Sandiacre18th August 2023/ Glossop to VES Lure 4/7/2025 – Christian Heintzen©



 

Distribution Map for Synanthedon vespiformis

Found 15 records
    ↳ from 2026+
    ↳ 12 from 2020 - 2025
    ↳ 3 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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Bedrock Geology ** indirectly affects moth distribution by influencing the type of habitat and food plants available in an area. In turn, this may affect the types of moths that can thrive, or where they can most likely be found.


NBN Atlas UK Distribution for – Synanthedon vespiformis

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Note – the NBN Atlas datasets are listed in the map below and vary in their currency (uptodateness) – however, the map does give a general indication of the moth's distribution across the UK.

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Monthly Records By Year: Synanthedon vespiformis
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Synanthedon vespiformis
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Synanthedon vespiformis
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

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Recordings By Year: Synanthedon vespiformis
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Synanthedon vespiformis
AGR: -6.53%   |   Total % Change: -33.3%

Hectad (10kmx10km) Coverage: Synanthedon vespiformis
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Synanthedon vespiformis
( data includes Adult Stage only )

Flight Period chart – the grey hatched area above, which can cross one or more months, pictorially represents the best guess we have for this moth's flight periods [month/s]. The coloured lines represent the actual months seen in flight, from site observation records received between 2020-2026.

Records Behind the Map and Charts - Synanthedon vespiformis – 15 records available

Listed by Year - descending - scroll across to see all table columns

Site NameTetradDateCountStageSource
Park Head, Crich.SK35M09/07/20252adultvc57_irecords_extract
Glossop, Hague Street, Hay MeadowSK09G04/07/20251adultvc57_irecords_extract
Norton Lees, SheffieldSK38L02/06/20251adultvc57_irecords_extract
Park Head, Crich.SK35M31/07/20241adultvc57_irecords_extract
upper cromford gardenSK25Y28/07/20241adultvc57_irecords_extract
Norton Lees, Sheffield, UKSK38L26/06/20241Adultvc57_irecords_extract
Sandiacre GardenSK43S17/08/20232adultvc57_irecords_extract
West Hallam Ash TipSK44L11/07/20231adultvc57_irecords_extract
Glossop, Hague StreetSK09G07/07/20231adultvc57_irecords_extract
Hague Street, Glossop, England, GBSK09G07/07/20231Adultvc57_irecords_extract
Holmebrook Valley Park, ChesterfieldSK37L02/08/20221adultvc57_irecords_extract
Havercroft RoadSK38L17/07/20201Adultvc57_irecords_extract
Norton LeesSK38L30/06/20191adultDanes_2019-2021
Havercroft RoadSK38L22/06/20193Adultvc57_irecords_extract
Stoneley WoodSK38W12/06/19981Adultvc57_irecords_extract

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