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Orange-tailed Clearwing
Synanthedon andrenaeformis (Laspeyres, 1801)
Sesiidae: Sesiinae
378 / 52.010
Photo © Mike McCarthy,  05/07/2021 - Horsford

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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
Red List: LC (Least Concern)
Ex Status: Nationally Scarce B
Verification Grade:  Adult: 2
Norfolk Status
Formerly considered Scarce, but with the increased availability and use of pheromone lures (2017+) apparently much more widespread and common than previously thought.
Male comes to pheromone lures but otherwise adults seldom seen.
Several records in the west of the county in recent years.

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


Pheromone attractants: VES
Pheromone activity times: all day peak around 11am.
[available at ALS]

Several records from across VC28 west Norfolk from 2017 with the increased use of pheromone lures.

First VC27 record in 2021 at Horsford. (M. McCarthy, 05/07/21)

Recorded in 15 (20%) of 74 10k Squares.
First Recorded in 2007.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
04/08/2021127TG10 - Wymondham/Cringleford
23/07/2021127TG10 - Wymondham/Cringleford
22/07/2021127TG10 - Wymondham/Cringleford
19/07/2021128TL79 - Methwold/Foulden
18/07/2021127TG10 - Wymondham/Cringleford
Further info: Synanthedon andrenaeformis
 
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