Animalia > Arthropoda > Insecta > Lepidoptera > Papilionoidea > Lycaenidae > Polyommatus > Polyommatus icarus

Polyommatus icarus (Common Blue Butterfly)

Synonyms: Lycaena alexis casanensis; Lycaena andreas; Lycaena arion arionoides; Lycaena icarus amoena; Lycaena icarus biarcuata; Papilio candaon; Papilio candiope; Papilio candybus; Polyommatus alexis; Polyommatus icarus albistria; Polyommatus icarus apicata-caerulescens; Polyommatus icarus apicata-cuneata; Polyommatus icarus apicata-supracaerulea; Polyommatus icarus apicata-thestylis; Polyommatus icarus apicata-thetis; Polyommatus icarus apico-juncta; Polyommatus icarus arcua; Polyommatus icarus arcuata; Polyommatus icarus basi-elongata; Polyommatus icarus basijuncta

Wikipedia Abstract

The common blue (Polyommatus icarus) is a small butterfly in the family Lycaenidae, widespread over much of the Palaearctic and recently introduced in eastern Canada.The larva feeds on plants from the family Leguminosae. Recorded foodplants are Lathyrus spp., Vicia spp., Vicia cracca, Oxytropis campestris, Lotus corniculatus, Trifolium pratense, Oxytropis pyrenaica, Astragalus aristatus, Astragalus onobrychis, Astragalus pinetorum, Medicago romanica, Medicago falcata, and Trifolium repens.
View Wikipedia Record: Polyommatus icarus



Litter Size [1]  180
Wing Span [2]  1.4 inches (.035 m)

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Alte Valli Stura e Maira 103806 Italy  
Asby Complex 7715 England, United Kingdom
Avon Gorge Woodlands 376 England, United Kingdom
Bath and Bradford-on-Avon Bats 265 England, United Kingdom  
Beskid Slaski 65261 Poland  
Border Mires, Kielder – Butterburn 29286 England, United Kingdom
Borrowdale Woodland Complex 1650 England, United Kingdom
Bredon Hill 889 England, United Kingdom  
Cairngorms 142543 Scotland, United Kingdom
Carmarthen Bay and Estuaries/ Bae Caerfyrddin ac Aberoedd 163340 Wales, United Kingdom
Cerne and Sydling Downs 912 England, United Kingdom
Culbin Bar 1514 Scotland, United Kingdom  
Dee Estuary/ Aber Dyfrdwy 39057 England/Wales, United Kingdom
Dorset Heaths 14161 England, United Kingdom
Dorset Heaths (Purbeck and Wareham) and Studland Dunes 5491 England, United Kingdom
Fenland 1529 England, United Kingdom
Firth of Lorn 51830 Scotland, United Kingdom
Glen Coe 7329 Scotland, United Kingdom  
Gower Commons/ Tiroedd Comin Gwyr 4390 Wales, United Kingdom
Inverpolly 29349 Scotland, United Kingdom
Leutratal - Cospoth - Schießplatz Rothenstein 4258 Germany  
Limestone Coast of South West Wales/ Arfordir Calchfaen de Orllewin Cymru 3940 Wales, United Kingdom  
Lochs Duich, Long and Alsh Reefs 5883 Scotland, United Kingdom  
Mendip Limestone Grasslands 1032 England, United Kingdom
Monadh Mor 622 Scotland, United Kingdom
Moor House – Upper Teesdale 95867 England, United Kingdom
Moray Firth 373987 Scotland, United Kingdom  
Morecambe Bay 151985 England, United Kingdom
Morecambe Bay Pavements 6449 England, United Kingdom
Morfa Harlech a Morfa Dyffryn 2626 Wales, United Kingdom
North Pennine Moors 254789 England, United Kingdom
North York Moors 108930 England, United Kingdom
Pembrokeshire Bat Sites and Bosherston Lakes/ Safleoedd Ystlum Sir Benfro a Llynnoedd Bosherston 303 Wales, United Kingdom  
Pen Llyn a`r Sarnau/ Lleyn Peninsula and the Sarnau 360832 Wales, United Kingdom
Rannoch Moor 24965 Scotland, United Kingdom
Söterbachtal 331 Germany  
Sefton Coast 11278 England, United Kingdom
Severn Estuary/ Môr Hafren 182155 England/Wales, United Kingdom
Solway Firth 107829 England/Scotland, United Kingdom
South Solway Mosses 4849 England, United Kingdom
South Uist Machair 8482 Scotland, United Kingdom
Strathglass Complex 58277 Scotland, United Kingdom
Sunart 25320 Scotland, United Kingdom
West Dorset Alder Woods 814 England, United Kingdom
Witherslack Mosses 1202 England, United Kingdom


Prey / Diet

Astragalus pinetorum[3]
Bistorta officinalis (meadow bistort)[4]
Cardamine pratensis (Cuckoo Flower)[4]
Lotus corniculatus (birdfoot deervetch)[5]
Lotus pedunculatus (big trefoil)[4]
Medicago falcata (Blue Alfalfa)[3]
Medicago lupulina (nonesuch)[4]
Medicago sativa (yellow alfalfa)[4]
Ononis spinosa (spiny restharrow)[5]
Ononis spinosa subsp. hircina (field restharrow)[5]
Ononis spinosa subsp. procurrens (Restharrow)[5]
Ornithopus perpusillus (little white bird's-foot)[5]
Oxytropis campestris (northern yellow locoweed)[3]
Oxytropis neglecta (Pyrenaen- Spitzkiel)[3]
Pimpinella saxifraga (solidstem burnet saxifrage)[5]
Pisum sativum (Common Pea)[5]
Ranunculus acris (meadow buttercup)[4]
Silene flos-cuculi (ragged robin)[4]
Tanacetum bipinnatum subsp. bipinnatum (Tansy)[4]
Trifolium dubium (hop clover)[5]
Trifolium pratense (Red Clover)[4]
Trifolium repens (Ladino Clover)[4]
Vicia cracca (cow vetch)[3]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Actebia praecox (Portland Moth)2
Adelphocoris lineolatus (alfalfa plant bug)4
Adelphocoris seticornis2
Aglais urticae (Small Tortoiseshell)2
Ancylis badiana3
Anthocharis cardamines (Orange Tip Butterfly)2
Anthophila fabriciana (Nettle-tap Moth)2
Aphrophora alni (Alder Spittle Bug)3
Apis mellifera (honey bee)5
Aplasta ononaria (Rest Harrow)2
Aporia crataegi (Black-veined White Butterfly)5
Asphondylia melanopus2
Aspitates gilvaria (Straw Belle)2
Aspitates ochrearia2
Autographa gamma (Silver Y Moth)5
Berytinus minor2
Boloria selene (Silver-bordered fritillary)4
Bombus lapidarius (Stone Humble-bee)4
Bombus terrestris (Large Earth Humble-bee)3
Callistege mi (Mother Shipton Moth)8
Callophrys rubi (Green Hairstreak Butterfly)4
Closterotomus norvegicus (strawberry bug)3
Cnephasia asseclana (Flax Tortrix Moth)3
Cnephasia genitalana3
Cnephasia incertana (Light Grey Tortrix Moth)3
Cnephasia stephensiana (Grey Tortrix Moth)3
Coenonympha pamphilus (Small Heath Butterfly)5
Coleophora discordella2
Colias croceus (Clouded Yellow Butterfly)7
Colias hyale (Pale Clouded Yellow)5
Contarinia loti3
Cyaniris semiargus2
Dasineura trifolii (clover leaf midge)3
Eilema caniola (Hoary Footman)2
Eilema complana (Scarce Footman)3
Ematurga atomaria (Common Heath Moth)4
Empis picipes2
Eristalis arbustorum2
Erynnis tages (Dingy Skipper)3
Euclidia glyphica (Burnet Companion Moth)10
Eudonia truncicolella2
Euxoa nigricans (Garden Dart)2
Gonepteryx rhamni (Brimstone Butterfly)2
Helophilus pendulus (Striped Hover Fly)2
Jaapiella loticola2
Lasiocampa trifolii (Grass Eggar)6
Leptidea sinapis (Wood White)6
Leucoptera lotella2
Liriomyza congesta4
Lycaena phlaeas (Small Copper Butterfly)2
Lygus pratensis (Common Meadow Bug)2
Marasmarcha lunaedactyla2
Meliscaeva cinctella2
Orthosia gothica (Hebrew Character)2
Pachytodes cerambyciformis2
Papilio machaon (Old World swallowtail)2
Peridroma saucia (variegated cutworm)2
Philaenus spumarius (meadow froghopper)3
Pieris brassicae (Large White)2
Pieris napi (Green-veined White Butterfly)3
Piezodorus lituratus (Gorse Shield Bug)3
Plebejus argus (Silver-studded Blue)4
Polia bombycina (Pale Shining Brown)2
Pyrgus malvae (Grizzled Skipper)5
Pyrrhia umbra (Bordered Sallow)2
Scopula rubiginata (Tawny Wave)2
Scotopteryx bipunctaria4
Scotopteryx chenopodiata (Shaded Broad-bar Moth)4
Selidosema brunnearia2
Siona lineata (Black-veined Moth)2
Siphona geniculata2
Stenurella melanura2
Syncopacma larseniella2
Syncopacma taeniolella2
Thrips vulgatissimus2
Thymelicus acteon (Lulworth Skipper)2
Thymelicus lineola (European skipper)2
Thymelicus sylvestris (Small Skipper)2
Zygaena filipendulae (Six-spot Burnet)3
Zygaena lonicerae (Narrow-Bordered Five-Spot Burnet)4
Zygaena trifolii2


Aneomochtherus hungaricus <Unverified Name>[6]
Echthistus rufinervis[6]
Philonicus albiceps[6]


Pollinator of 
Achillea distans subsp. distans (yarrow)[3]
Asphodelus aestivus[3]
Calluna vulgaris (heather)[3]
Cardamine pratensis (Cuckoo Flower)[4]
Centaurea jacea (Brown Knapweed)[3]
Eryngium campestre (field eryngo)[3]
Lavandula stoechas (French lavender)[3]
Lepidium draba (Whitetop)[3]
Leucanthemum vulgare (oxeye daisy)[3]
Lotus corniculatus (birdfoot deervetch)[3]
Lotus pedunculatus (big trefoil)[4]
Matricaria chamomilla (German chamomile)[3]
Melilotus albus (Sweet Clover)[3]
Succisa pratensis (devilsbit)[3]
Taraxacum tenejapense[3]
Trifolium pratense (Red Clover)[3]
Trifolium repens (Ladino Clover)[4]
Vicia hirsuta (Hairy Vetch)[3]




Attributes / relations provided by
1Body size, egg size, and their interspecific relationships with ecological and life history traits in butterflies (Lepidoptera: Papilionoidea, Hesperioidea), Enrique García-Barros, Biological Journal of the Linnean Society (2000), 70: 251–284
2De Keyser, R., Breuker, C. J., Hails, R. S., Dennis, R. L., & Shreeve, T. G. (2015). Why Small Is Beautiful: Wing Colour Is Free from Thermoregulatory Constraint in the Small Lycaenid Butterfly, Polyommatus icarus.
3Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
4Ecology of Commanster
5Biological Records Centre Database of Insects and their Food Plants
6Predator-Prey Database for the family Asilidae (Hexapoda: Diptera) Prepared by Dr. Robert Lavigne, Professor Emeritus, University of Wyoming, USA and Dr. Jason Londt (Natal Museum, Pietermaritzburg)
Protected Areas provided by Natura 2000, UK data: © Crown copyright and database right [2010] All rights reserved. Ordnance Survey Licence number 100017955
GBIF Global Biodiversity Information Facility
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access