Butterfly Conservation - saving butterflies, moths and their habitats
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saving butterflies, moths and our environment
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UTB Butterfly Species

The table below shows the 44 Butterfly Species which can be seen in the Upper Thames Branch area, including the regular migrants. The species are shown grouped by family to help with identification.

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Adonis Blue
Black Hairstreak
Brimstone
Brown Argus
Brown Hairstreak
Chalkhill Blue
Clouded Yellow
Comma
Common Blue
Dark Green Fritillary
Dingy Skipper
Duke of Burgundy
Essex Skipper
Gatekeeper
Grayling
Green Hairstreak
Green-veined White
Grizzled Skipper
Holly Blue
Large White
Large Skipper
Marbled White
Marsh Fritillary
Meadow Brown
Orange-tip
Painted Lady
Peacock
Purple Emperor
Purple Hairstreak
Red Admiral
Ringlet
Silver-spotted Skipper
Silver-studded Blue
Silver-washed Fritillary
Small Blue
Small Copper
Small Heath
Small Skipper
Small Tortoiseshell
Small White
Speckled Wood
White Admiral
White-letter Hairstreak
Wood White
Skippers (Hesperiidae)

Photo © Dave Wilton
Large Skipper (Ochlodes sylvanus)

Larval foodplant: Variety of grasses.
Flight period: Late May to end of August.
Over-winters: Larva.

Photo © Dave Wilton
Small Skipper (Thymelicus sylvestris)

Larval foodplant: Mostly Yorkshire-fog although other grasses are used.
Flight period: Late June to late August.
Over-winters: Larva.

Photo © Peter Eeles
Essex Skipper (Thymelicus lineola)

Larval foodplant: Various grasses, usually Cock's-foot.
Flight period: Mid June to end of August.
Over-winters: Egg.

Photo © David Hastings
Silver-spotted Skipper (Hesperia comma)

Larval foodplant: Sheep's-fescue.
Flight period: mid July to mid September.
Over-winters: Egg.
UTB Species Champion: Richard Soulsby

Photo © David Hastings
Dingy Skipper (Erynnis tages)

Larval foodplant: Common Bird's-foot-trefoil.
Flight period: Late April to late June. Occasional partial second generation in August.
Over-winters: Larva.
UTB Species Champion: Dave Wilton

Photo © David Hastings
Grizzled Skipper (Pyrgus malvae)

Larval foodplant: Various plants from the Rosaceae family but mainly Agrimony, Creeping Cinquefoil and Wild Strawberry.
Flight period: Late April to late June.
Over-winters: Pupa.
UTB Species Champion: David Hastings
Whites (Pieridae)

Photo © Pete Eeles
Brimstone (Gonepteryx rhamni)

Larval foodplant: Buckthorn and Alder Buckthorn.
Flight period: Can be seen at most times of the year, but peak emergence is in March/June and second generation in July/August.
Over-winters: Hibernates as Adult.

Photo © Jan Haseler
Clouded Yellow (Colias croceus)

Larval foodplant: A range of leguminous plants - clovers, Lucerne, Common Bird's-foot-trefoil.
Flight period: Immigrants usually arrive inland during May/June.
Over-winters:

Photo © Derek Brown
Large White (Pieris brassicae)

Larval foodplant: Cabbage, Oil-seed Rape, Nasturtium and Wild Mignonette.
Flight period: Peak emergence in April and second generation in July.
Over-winters: Pupa.

Photo © Derek Brown
Small White (Pieris rapae)

Larval foodplant: Brassicas are used, especially cabbages and Nasturtium.
Flight period: Peak emergence in May and second generation in July.
Over-winters: Pupa.

Photo © David Redhead
Green-veined White (Pieris napi)

Larval foodplant: A range of wild crucifers is used, such as Garlic Mustard, Cuckooflower and Hedge Mustard.
Flight period: Peak emergence in May and second generation in July.
Over-winters: Pupa.

Photo © David Hastings
Orange-tip (Anthocharis cardamines)

Larval foodplant: Cuckoo-flower and Garlic Mustard are favoured.
Flight period: Late April to mid June.
Over-winters: Pupa.

Photo © Tim Watts
Wood White (Leptidea sinapis)

Larval foodplant: Meadow Vetchling and other legumes.
Flight period: Mid May to end June, then partial second brood end of July/August.
Over-winters: Pupa.
UTB Species Champion: VACANT
Hairstreaks, Coppers & Blues (Lycaenidae)

Photo © Dave Wilton
Adonis Blue (Polyommatus bellargus)

Larval foodplant: Horseshoe Vetch.
Flight period: Late May to late June and second brood from mid August to mid September.
Over-winters: Larva.
UTB Species Champion: Maureen Cross - click here to go to the Species Champion page.

Photo © David Redhead
Chalkhill Blue (Polyommatus coridon)

Larval foodplant: Horseshoe Vetch.
Flight period: Early July to mid September.
Over-winters:
UTB Species Champion: Nick Bowles - click here to go to the Species Champion page.

Photo © Allen Beechey
Holly Blue (Celastrina argiolus)

Larval foodplant: Holly and Ivy.
Flight period: Peak emergence is April/May with a second brood in August.
Over-winters: Pupa.

Photo © David Hastings
Common Blue (Polyommatus icarus)

Larval foodplant: Mainly Common Bird's-foot-trefoil but also uses Greater Bird's-foot-trefoil, Black Medick, Common Restharrow, White Clover and Lesser Trefoil.
Flight period: Peak emergence in May/June with second brood in August/September.
Over-winters: Larva.

Photo © Derek Brown
Brown Argus (Plebeius agestis)

Larval foodplant: Common Rock-rose and Crane's-bills.
Flight period: May/June with second brood in August/September.
Over-winters: Larva.

Photo © Peter Eeles
Silver-studded Blue (Plebeius argus)

Larval foodplant: A wide variety of ericaceous and leguminous plants are used such as Heather, Bell Heather and Common Bird's-foot-trefoil.
Flight period: End June to end July.
Over-winters: Egg.
UTB Species Champion: Grahame Hawker - click here to go to the Species Champion page.

Photo © David Hastings
Small Blue (Cupido minimus)

Larval foodplant: Kidney Vetch.
Flight period: Mid May to end June and partial second brood in July/August.
Over-winters: Larva.
UTB Species Champion: David Turnbull - click here to go to the Species Champion page.

Photo © Paul Gee
Black Hairstreak (Satyrium pruni)

Larval foodplant: Blackthorn.
Flight period: Single-brooded, on the wing for about 3-4 weeks mainly in June.
Over-winters: Egg.
UTB Species Champion: Stuart Hodges - click here to go to the Species Champion page.

Photo © Dave Wilton
Brown Hairstreak (Thecla betulae)

Larval foodplant: Blackthorn.
Flight period: Late July to early October.
Over-winters: Egg.
UTB Species Champion: Dave Wilton - click here to go to the Species Champion page.

Photo © Peter Eeles
White-letter Hairstreak (Satyrium w-album)

Larval foodplant: Elm.
Flight period: Mid June to late August.
Over-winters: Egg.
UTB Species Champion: Peter Cuss - click here to go to the Species Champion page.

Photo © Paul Gee
Purple Hairstreak (Neozephyrus quercus)

Larval foodplant: Oak trees.
Flight period: Mid June to end August.
Over-winters: Egg.

Photo © Dave Wilton
Green Hairstreak (Callophrys rubi)

Larval foodplant: A variety of plants depending on habitat including Common Rock-rose, Common Bird's-foot-trefoil, Gorse, Broom and Dogwood.
Flight period: Mid April to end of June.
Over-winters: Pupa.
UTB Species Champion: David Turnbull - click here to go to the Species Champion page.

Photo © Allen Beechey
Small Copper (Lycaena phlaeas)

Larval foodplant: Common Sorrel and Sheep's Sorrel.
Flight period: Peak emergence is May/June with a second brood in August/September.
Over-winters: Larva.

Photo © Derek Brown
Duke of Burgundy (Hamearis lucina)

Larval foodplant: Cowslip, Primrose and occasionally Oxlip.
Flight period: Late April to early June.
Over-winters: Pupa.
UTB Species Champion: Ched George - click here to go to the Species Champion page.
Vanessids & Fritillaries (Nymphalidae)

Photo © Dave Wilton
Comma (Polygonia c-album)

Larval foodplant: Mainly Common Nettle.
Flight period: Hibernators: March onwards. Peak emergence of summer broods in July/August and September.
Over-winters: Adult hibernates.

Photo © David Hastings
Small Tortoiseshell (Aglais urticae)

Larval foodplant: Common Nettle.
Flight period: Hibernators: March onwards. Peak emergence of summer brood in July/August.
Over-winters: Adult hibernates.

Photo © David Hastings
Peacock (Inachis io)

Larval foodplant: Common nettle.
Flight period: Hibernators: March onwards. Peak emergence of summer brood in July/August.
Over-winters: Adult hibernates.

Photo © David Hastings
Red Admiral (Vanessa atalanta)

Larval foodplant: Common Nettle.
Flight period: Can be seen throughout the year, numbers peaking during July to September.
Over-winters: Migrant, but small numbers successfully hibernate as adults.

Photo © David Hastings
Painted Lady (Vanessa cardui)

Larval foodplant: Mainly Thistles.
Flight period: Peak of immigration usually occurs in June.
Over-winters: Migrant.

Photo © David Hastings
White Admiral (Limenitis camilla)

Larval foodplant: Honeysuckle.
Flight period: Mid June to mid August.
Over-winters: Larva.
UTB Species Champion: Julia Huggins - click here to go to the Species Champion page.

Photo © David Hastings
Purple Emperor (Apatura iris)

Larval foodplant: Goat Willow.
Flight period: Late June to early August.
Over-winters: Larva.
UTB Species Champion: Dennis Dell - click here to go to the Species Champion page.

Photo © David Hastings
Dark Green Fritillary (Argynnis aglaja)

Larval foodplant: Common Dog-violet.
Flight period: Mid June to mid/late August.
Over-winters: Larva.
UTB Species Champion: Ched George - click here to go to the Species Champion page.

Photo © Dave Wilton
Silver-washed Fritillary (Argynnis paphia)

Larval foodplant: Common Dog-violet.
Flight period: Late June to end August.
Over-winters: Larva.
UTB Species Champion: Mick Campbell - click here to go to the Species Champion page.

Photo © David Hastings
Marsh Fritillary (Euphydryas aurinia)

Larval foodplant: Devil's-bit Scabious.
Flight period: End of May to mid June.
Over-winters: Larva.
UTB Species Champion: Jim Asher - click here to go to the Species Champion page.
Browns (Nymphalidae)

Photo © Dave Wilton
Gatekeeper (Pyronia tithonus)

Larval foodplant: Various grasses.
Flight period: Late June to end of August.
Over-winters: Larva.

Photo © Pete Eeles
Grayling (Hipparchia semele)

Larval foodplant: Various grasses including Sheep's-fescue, Red Fescue, Bristle Bent and Early Hair-grass.
Flight period: Mid July to end of August.
Over-winters: Larva.
UTB Species Champion: Des Sussex - click here to go to the Species Champion page.

Photo © Dave Wilton
Meadow Brown (Maniola jurtina)

Larval foodplant: Various grasses.
Flight period: Early/mid June to early September.
Over-winters: Larva.

Photo © Dave Wilton
Ringlet (Aphantopus hyperantus)

Larval foodplant: Coarser grasses such as Cock's-foot.
Flight period: Mid June to mid/late August.
Over-winters: Larva.

Photo © Allen Beechey
Marbled White (Melanargia galathea)

Larval foodplant: Various grasses.
Flight period: Mid June to mid August.
Over-winters: Larva.

Photo © David Hastings
Small Heath (Coenonympha pamphilus)

Larval foodplant: Various fine grasses.
Flight period: Early/mid May to early September.
Over-winters: Larva.

Photo © Pete Eeles
Speckled Wood (Pararge aegeria)

Larval foodplant: Various grasses.
Flight period: Early April to October (3 overlapping broods.)
Over-winters: Larva and Pupa.

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