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Acrobasis tumidana ([Denis & Schiffermüller], 1775)
previously: Conobathra tumidana ([Denis & Schiffermüller], 1775)

(Scarce Oak Knot-horn)
62.0330 (B&F: 1435)

»Suborder: Glossata
 »Superfamily: Pyraloidea
  »Family: Pyralidae
   »Subfamily: Phycitinae
    »Tribe: Phycitini

Synonym(s):

Acrobasis verrucella (Hübner, 1796)
Acrobasis rubritibiella (Fischer von Röslerstamm, 1839)

Status and ecology:

National Status: Migrant

Immigrant and suspected episodic resident. Occurs sparingly in a few localities in both vice-counties, very rare in East Sussex. Single-brooded, flying mainly from mid July to late August. Larval foodplant has yet to be determined in Sussex, although oak has been listed elsewhere. (Pratt, 2011).

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Findon Valley, 19 vii 2014 Photo: Mike Snelling

Conobathra tumidana ([Denis & Schiffermüller], 1775)

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Distribution map for Conobathra tumidana

(Distribution at 1km scale)

 |   | All records

Historic records: pre 1980 |  1980 - 1989 |  1990 - 1999 |  2000 - 2009 |  2010 on |  All

Phenology chart for Conobathra tumidana

Phenology: Adult records only

Forms or subspecies:  |   | All records

Historic records: pre 1980 |  1980 - 1989 |  1990 - 1999 |  2000 - 2009 |  2010 on |  All

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