Geometridae : Ennominae
  Prev | Next  
Photo © Paul Butter

Upload a Photo
Similar Dorset Species: None
 
Dusky Thorn
Ennomos fuscantaria

(Haworth, 1809) 1914 / 70.235

Davey, P., 2009: A species occurring across England and Wales, the larva feeding on ash (Fraxinus spp.). In Dorset, the moth is widely distributed across the county wherever ash is found, but it is usually at low density and seldom common. It is found in ash-dominated woods that grow on chalky soil, and in open localities where ash grows in relative isolation.

Recorded in 37 (93%) of 40 10k Squares.
First Recorded in 1929.
Last Recorded in 2019.
(Data up to end 2019)
Additional Stats

Forewing: 17-21mm
Flight: July - October
Foodplant:   Ash
Red List: Near Threatened (NT)
GB Status: Common
BAP Status: Declining (Research only)
Verification Grade:  Adult: 1
< Canary-shouldered Thorn | September Thorn >
List Species Records   [Show All Latest]
Latest 5 Records (data up to end 2019)
Date#VC10k Area
16/10/201919SY98 Wareham
07/10/201919SY78 Broadmayne
07/10/201919SY49 Bridport
30/09/201919SY79 Puddletown
30/09/201919SY98 Wareham

We need your records!
Do you have records of Dusky Thorn?
Put your own dot on the map!

Golden Cinnabar Membership

  • Help with running costs of dorsetmoths.co.uk
  • View detailed maps
  • List detailed species records
  • 12 month membership

dorsetmoths.co.uk
   You can really help...

Copyright © Lepidoptera UK 2025
   
Click Map for Details...

  Immature   Adult
Show Details | 1990 to 2019 | 2000 to 2019 | Graph Key
© dorsetMoths.co.uk 2025 NOLA®; Database using MapMate® Digital Maps © Bartholomew 2010. Design © Jim Wheeler 2025
This site requires necessary cookies to function correctly. We'd also like to set Google analytics cookies that help us make improvements by measuring how you use the site. These will be set only if you accept all cookies. Necessary cookies enable core functionality such as security, network management, and accessibility. You may disable these by changing your browser settings, but this will affect how the website functions. Cookies Policy