Hertfordshire & Middlesex Branch
Saving butterflies, moths and our environment
| Swallowtail | Papilio machaon subsp. britannicus | Non-resident |
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| Male? | Female? | Nectaring |
| Strumpshaw 2nd generation © Ian Hardy 2006 |
Strumpshaw Fen © Andrew Middleton 2006 |
Strumpshaw Fen © Nick Sampford 2003 |
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| Undersides | Underside | Mating pair |
| Horning village © Liz Goodyear 2006 |
Strumpshaw Fen © Nick Sampford 2003 |
© Roger Gibbons 2009 |
The British sub-species britannicus is restricted to the Norfolk and Suffolk Broads. There are occasional reports along the south coast of England of the continental sub-species gorganus, which is known to migrate (Sawford, 1987)