Tortricidae : Olethreutinae
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Photo © Neil Sherman,  Netted at dusk flying over saltmarsh. Hemley. June 2020

Similar Suffolk Species
Eucosma tripoliana
Saltmarsh Bell
Eucosma conterminana
Pale Lettuce Bell
Approx Length (c. 10mm) Wingspan (16-20 mm)
      
      
      
      
    
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Eucosma rubescana
Pale Saltern Bell

(Constant, 1895)1191 / 49.271
=Eucosma catoptrana

Morley’s Final Catalogue: Not listed.

Recent Status: A rare salt-marsh species in Suffolk.

Life Style: A single brooded species flying at dusk. It can be found during June and July. The larvae feed on Aster tripolium. They spin the flowers of the foodplant together as refuge. They hibernate in a cocoon on the ground in which they pupate.

Identification: Eucosma rubescana has narrower more elongate wings than the two other Suffolk salt-marsh species, E. tripoliana and E. lacteana. The costal strigulae shapes of each are distinctive. The species is most similar to E. conterminana, though again the costal strigulae of each are distinctive and E. rubescana lacks the clearly defined proximal edge to the dorsal patch. If necessary they can be separated with difficulty by the genitalia of the male and more easily of the female. E. rubescana shows a strong grey speckled band on the termen.

Determination by Genitalia Examination (gen. det.) Required

Recorded in 1 (2%) of 58 10k Squares.
First Recorded in 2009.
Last Recorded in 2019.
Additional Stats

Eucosma campoliliana  |  Eucosma tripoliana >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
29/06/2019125TM44 - Orford Ness
24/06/2019+25TM44 - Orford Ness
24/06/2017125TM44 - Orford Ness
02/06/2017125TM44 - Orford Ness
05/08/2016125TM44 - Orford Ness
Show Details | 1990 to 2019 | 2000 to 2019 |
Express Record Eucosma rubescana
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Copyright © Jim Wheeler 2020
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 16-20 mm
Foodplant:   Aster tripolium
Nat Status: pRDB2
Verification Grade:  Adult: 4
 Immature Adult
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ - Suffolk 2020. © James Wheeler - Norfolk Moths 2007 - 2020. Data © NOLA™ - Suffolk 2020
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