This table lists the earliest sightings of resident and regular migrant butterfly species in 2019 reported to Butterfly Conservation HQ and Nick Bowles.

These first sightings are gathered as the butterfly season progresses so as to provide up-to-date information about species emergence. They are not reviewed retrospectively by reference to transect data or distribution records and therefore represent what we believed to be the first report of a species at the time rather than a comprehensive analysis of the actual first dates recorded in a particular year.

View previous years (2010-2018) sightings as a download.

UK First sightings 2019      
Vernacular name Scientific name Date Location
Swallowtail  Papilio machaon 12 May Norfolk
Dingy Skipper Erynnis tages 11 April Sussex
Grizzled Skipper Pyrgus malvae 30 March Sussex
Chequered Skipper Carterocephalus palaemon 11 May Argyll
Essex Skipper Thymelicus lineola 17 June  Hertfordshire
Small Skipper  Thymelicus sylvestris 3 June Hertfordshire
Lulworth Skipper  Thymelicus acteon 6 May  Dorset
Silver-spotted Skipper  Hesperia comma 13 July  Sussex
Large Skipper  Ochlodes sylvanus 15 May  Derbyshire & Isle of Wight
Wood White  Leptidea sinapis 20 April Herefordshire
Cryptic Wood White  Leptidea juvernica 1 May Cos Antrim, Armagh & Fermanagh
Orange-tip  Anthocharis cardamines 19 March Devon
Large White  Pieris brassicae 22 Feb Norfolk
Small White  Pieris rapae 23 Feb   London, Oxfordshire & Sussex
Green-veined White  Pieris napi 24 Feb Derbyshire
Clouded Yellow Colias croceus 24 Feb Dorset
Brimstone Gonepteryx rhamni 1 Jan  Hampshire
Wall  Lasiommata megera 27 March Cornwall
Speckled Wood  Pararge aegeria 8 Jan  Derbyshire
Large Heath  Coenonympha tullia 22 May  Lancashire
Small Heath  Coenonympha pamphilus 15 April Hertfordshire
Mountain Ringlet Erebia epiphron 30 May  Cumbria
Scotch Argus Erebia aethiops 20 July Cumbria
Ringlet Aphantopus hyperantus 1 June  Northamptonshire
Meadow Brown Maniola jurtina 22 May  Hampshire
Gatekeeper Pyronia tithonus 16 June  Suffolk
Marbled White Melanargia galathea 30 May Somerset
Grayling Hipparchia semele 1 June Lancashire
Pearl-bordered Fritillary Boloria euphrosyne 11 April  Cornwall
Small Pearl-bordered Fritillary Boloria selene 30 April Devon
Silver-washed Fritillary Argynnis paphia 5 June  Sussex
Dark Green Fritillary Argynnis aglaja 22 May  Devon
High Brown Fritillary Argynnis adippe 10 June  Devon
White Admiral Limenitis camilla 2 June  Sussex
Purple Emperor Apatura iris 11 June Hampshire
Red Admiral Vanessa atalanta 1 Jan Berkshire, Devon, Hampshire, Kent & Sussex
Painted Lady Vanessa cardui 1 Jan Devon
Peacock Aglais io 1 Jan Derbyshire, Devon, Dorset, Nottinghamshire, Somerset, Sussex & Yorkshire
Small Tortoiseshell Aglais urticae 1 Jan  Derbyshire
Comma Polygonia c-album 28 Jan  Glamorgan & Middlesex
Marsh Fritillary Euphydryas aurinia 6 May  Wiltshire
Glanville Fritillary Melitaea cinxia 7 May  Isle of Wight
Heath Fritillary Melitaea athalia 18 May  Devon
Duke of Burgundy  Hamearis lucina 17 April  Buckinghamshire & Hampshire
Small Copper  Lycaena phlaeas 5 March  Norfolk
Brown Hairstreak Thecla betulae 8 July  Surrey
Purple Hairstreak Favonius quercus 1 June  Hertfordshire
Green Hairstreak Callophrys rubi 24 March Kent
White-letter Hairstreak Satyrium w-album 8 June Middlesex & Sussex
Black Hairstreak Satyrium pruni 21 May Sussex
Small Blue  Cupido minimus 14 April Kent
Holly Blue  Celastrina argiolus 12 Jan Essex
Large Blue  Maculinea arion 3 June Somerset
Silver-studded Blue  Plebejus argus 23 May  Cornwall
Brown Argus  Aricia agestis 18 April Glamorgan
Northern Brown Argus  Aricia artaxerxes 21 May  Fife
Common Blue  Polyommatus icarus 20 April Somerset
Adonis Blue  Polyommatus bellargus 30 April Dorset
Chalk Hill Blue  Polyommatus coridon 29 June  Isle of Wight & Kent