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Orange-tailed Clearwing
Synanthedon andrenaeformis (Laspeyres, 1801)
Sesiidae: Sesiinae
378 / 52.010
Photo © Bill Urwin

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Similar Norfolk Species
Yellow-legged Clearwing
Synanthedon vespiformis
Forewing: 9-11mm.
Flight: May - July.
Foodplant:   Wayfaring-tree, less frequently Guelder Rose
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 2
Norfolk Status
Rare, but posibly overlooked.
Several records in the west of the county in recent years with the increased availability and use of pheromone lures.

Distinctive orange tail fan.
Chalk downland, limestone grassland and woodland edges.

First Norfolk record in 2007.
Successfully bred from capped mines found at two sights in Norfolk, both mines were on Viburnum opolus (Guelder Rose).
The trees where the mines were found had been infested for some time!
Mines are best searched for in early spring when no leaves are on the trees. The thickness of branch can vary from finger size to 30mm. Rob Dyke

It has been suggested that the insect may be utilizing other related viburnum as a foodplant, such as honeysuckle, snowberry or elder and may also thrive on Dogwood. JC

Male comes to pheromone lures but otherwise adults seldom seen. [available at ALS]

Pheromone attractants: ves
Pheromone activity times: all day peak around 11am.

Recent records from across VC28 west Norfolk in 2017/18 with the increased use of pheromone lures.

Not yet recorded in VC27!

Recorded in 10 (14%) of 69 10k Squares.
First Recorded in 2007.
Last Recorded in 2020.

Latest 5 Records
Date#VC10k Area
11/07/2020128TF90 - Watton/Shipdham
20/06/2020128TL79 - Methwold/Foulden
14/06/2020228TF50 - Upwell/Marshland
14/06/2020128TF81 - Castle Acre/Litcham
13/06/2020128TF50 - Upwell/Marshland
Further info: Synanthedon andrenaeformis
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