Lower Adur Valley and Downs
 

	Small Tortoiseshell	Aglais urticae	Frequent - Very Common	Downs, gardens and Adur Levels
	Orange Tip	Anthocharis cardamines	Rare - Occasional	Woods Mill  Shermanbury,  Henfield  Lancing Manor Adur Levels
	Ringlet	Aphantopus hyperantus	Rare (One record, more expected)	Slonk Hill south
	Dark Green Fritillary	Argynnis aglaja		Possible, but not recorded
	Brown Argus	Aricia agestis		Slonk Hill south Mill Hill
	Green-veined White	Artogeia napi	Rare - Frequent	Adur Levels Mill Hill
	Green Hairstreak	Callophrys rubi	Rare	Reported from Lancing Ring Pepperscombe (W. of Steyning)  Mill Hill  (unconfirmed)
	Holly Blue	Celastrina argiolus	Common	Lancing, outskirts of the town centre, spring. Shoreham town. Lancing Clump Adur Levels
	Small Heath	Coenonympha pamphilus	Frequent	Mill Hill and other Downs,  Halewick Lane, Lancing.
	Clouded Yellow	Colias croceus	Rare - Common	Immigrant, absent or rare most years but common everywhere except gardens in 2000.  Slonk Hill 2002.
	Dingy Skipper	Erynnis tages	Frequent	Mill Hill.  Upper Beeding.
	Brimstone	Gonepteryx rhamni	Occasional - Frequent	Reported from North Lancing (urban area).  Lancing churchyards.  Mill Hill. Downs.  Shermanbury.  Adur Levels
	Peacock	Inachis io	Frequent	Lancing Clump and Widewater. Lancing churchyards. Adur Levels Downs, Town centres and gardens.
	Wall Brown	Lasiommata megera	Frequent	Occasionally spotted on the Downs.  Adur Levels Shoreham town.
	Small Copper	Lycaena phlaes	Occasional - Frequent	Southwick Hill.  Beeding Hill Adur Levels Lancing Clump Mill Hill lower slopes
	Adonis Blue	Polyommatus bellargus	Rare - Common	Southwick Hill. Mill Hill.
	Chalkhill Blue	Polyommatus coridon	Frequent - Abundant	Common on the Upper Downs.
	Meadow Brown	Maniola jurtina	Common	Common on the Downs and Adur Levels Town centres and gardens.
	Marbled White	Melanargia galathea	Frequent - Common	Upper Downs occasional, sometimes common.  Sometimes abundant on McIntyres Field (near Lancing Clump)
	Large Skipper	Ochlodes venata	Occasional - Frequent	Lancing Ring, Mill Hill
	Speckled Wood	Pararge aegeria	Frequent - Common	Frequent at Lancing Clump. Occasionally at Mill Hill and other Downs scrub, and near Buckingham Park. Lancing churchyards.
	Large White	Pieris brassicae	Common	Gardens, Downs, Beach and Adur Levels
	Small White	Pieris rapae	Common - Very Common	Gardens,Downs, Beach and Adur Levels
	Comma	Polygonia c-album	Rare - Frequent	Lancing Clump and Lancing churchyards. Shoreham Town.  Adur Levels
	Common Blue	Polyommatus icarus	Common	Beach and Downs, occasionally from the Adur Levels.
	Grizzled Skipper	Pyrgus malvae	Frequent	Mill Hill Slonk Hill North
	Gatekeeper	Pyronia tithonus	Common - Very Common	Adur Levels and scrub areas of the Downs. Town.
	Essex Skipper	Thymelicus lineola	Frequent	Downs
	Small Skipper	Thymelicus sylvestris	Frequent	Lancing Ring, Mill Hill, Southwick Hill, wasteland in towns, Adur Levels Shermanbury.
	Red Admiral	Vanessa atalanta	Common	Parks & Gardens and Adur Levels. Lancing Ring. Mill Hill. Southwick Hill.  Shoreham and Lancing Beach.
	Painted Lady	Vanessa cardui	Frequent - Common	Widewater Lagoon  Towpath on the Adur between Shoreham and Bramber  Lancing Ring Mossy Bottom and Mill Hill

 

ACFOS

SUPERABUNDANT = 10,000 +
ABUNDANT 1000- 10,000
VERY COMMON = 500-1000
COMMON 100-500
VERY FREQUENT = 50-100
FREQUENT 10 - 50
OCCASIONAL 2-10
SCARCE = ONLY 1

Scarce 1-10 per year
Very Scarce 2 or 3 per year

Rare   less than one every year
Very Rare   1-5 records in total since 2000

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