Long-tailed blue
Lampides boeticus (Linnaeus, 1767)
LCLeast Concernbutterflies and moths
The long-tailed blue (Lampides boeticus) is an insect in the butterflies and moths group, belonging to the family Lycaenidae and the subfamily Polyommatinae. Its wingspan is 2.8 cm as a representative value, with sources reporting from 2 to 3.6 cm.
Quick facts about the long-tailed blue
The IUCN Red List assesses the long-tailed blue globally as Least Concern (LC), which is not a threatened category. Other English names for this species include Pea blue, Bean butterfly, Long-tailed pea-blue and Long-tailed pea blue.
- Weight
- Not recorded
- Length
- Not recorded
- Wingspan
- 2 cm – 3.6 cmsrc for Wingspan
- Lifespan
- Not recorded
- Diet
- Nectarivoresrc for Diet
- Main food
- flowerssrc for Main food
- Habitat
- grassland, shrublandsrc for Habitat
- Young per litter or clutch
- Not recorded
- Active
- By day (diurnal)src for Active
- On the wing
- All yearsrc for On the wing
- Generations a year
- Severalsrc for Generations a year
- Larval food plants
- Fabaceae familysrc for Larval food plants
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
How big is the long-tailed blue?
Photos of the long-tailed blue
Only freely licensed photos are shown. Each carries its creator and licence.
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Where does the long-tailed blue live?
Not recorded
What is the long-tailed blue?
Lampides boeticus, the pea blue, or long-tailed blue, is a small butterfly that belongs to the lycaenids or gossamer-winged family.
From the Wikipedia article “Lampides boeticus” (en.wikipedia.org/w/index.php?title=Lampides_boeticus&oldid=1383452687), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the long-tailed blue endangered?
The long-tailed blue is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species.
How is the long-tailed blue classified?
- kingdomAnimalia
- phylumArthropoda
- classInsecta
- orderLepidoptera
- familyLycaenidae
- genusLampides
- SpeciesLampides boeticus (Linnaeus, 1767)
Synonyms Lampides armeniensis, Lampides caerulea, Lampides caeruleafasciata, Lampides caeruleamarginata, Lampides clara, Lampides clarafasciata, Lampides claramarginata, Lampides fusca, Lampides fuscafasciata, Lampides fuscomarginata, Lampides grisescens, Lampides kawachensis, Lampides leguminis, Lampides major, Lampides michaeli, Lampides minor, Lampides typicafasciata, Lampides typicamarginata, Lycaena albovittata, Lycaena ecaudata, Lycaena minor, Papilio boeticus, Papilio damoetes
Other names and names in other languages (47)
- Bean butterflyEnglish
- Long-tailed pea blueEnglish
- Long-tailed pea-blueEnglish
- Pea blueEnglish
- LusernbloutjieAfrikaans
- Lusern-bloutjieAfrikaans
- فراشة البازلاءArabic
- فراشة الزرقاء ذات الذيل الطويلArabic
- Blaveta dels pèsolsCatalan
- modrásek cizokrajnýCzech
- Glesyn Cynffon HirWelsh
- Gleision Cynffon HirWelsh
- VandreblåfuglDanish
- Großer WanderbläulingGerman
- Geschwänzter BlasenstrauchbläulingGerman
- Großer Wander-BläulingGerman
- Langschwänziger BläulingGerman
- Λύκαινα µε ουράGreek
- Canela estriadaSpanish
- Azuré porte-queueFrench
- כחלון האפוןHebrew
- vándorboglárkaHungarian
- Licenide del piselloItalian
- 裏波小灰蝶Japanese
- ウラナミシジミJapanese
- 물결부전나비Korean
- Grousse WanderbläulingLuxembourgish
- TijgerblauwtjeDutch
- modrogończyk białopręgiPolish
- Azul-de-cauda-longaPortuguese
- Голубянка гороховаяRussian
- modráčik cudzokrajnýSlovak
- repati lesketavčekSlovenian
- långsvansad blåvingeSwedish
- பட்டாணி நீலன்Tamil
- ผีเสื้อหนอนถั่วThai
- Fasulye Kapsül KurduTurkish
- LampidesTurkish
- Uzun kuyruklu mavi kelebekTurkish
- Синявець гороховийUkrainian
- Cây đuôi dài xanhVietnamese
- 亮灰蝶Chinese
- 曲斑灰蝶Chinese
- 波紋小灰蝶Chinese
- 波紋灰蝶Chinese
- 豆波灰蝶Chinese
- 豆莢灰蝶Chinese
Catalogue of LifeWikipediaiNaturalistITISTAXREFWikidataIUCN Red List
Relatives of the long-tailed blue
Other species in the same genus Lampides.
CompareLong-tailed blue vs Common caeruleanLong-tailed blue vs Butler's caeruleanLong-tailed blue vs Lampides aberransLong-tailed blue vs Lampides aestivus
Common questions
Each answer is written from the sourced facts on this page, and only where they hold the answer.
What kind of animal is the long-tailed blue?
The long-tailed blue is an insect in the butterflies and moths group. It belongs to the order Lepidoptera and the family Lycaenidae.
What is the wingspan of the long-tailed blue?
The long-tailed blue has a representative wingspan of 2.8 cm. Sources report values from 2 to 3.6 cm.
Is the long-tailed blue endangered?
No. The IUCN Red List assesses it globally as Least Concern (LC), which is not a threatened category.
What is the scientific name of the long-tailed blue?
Its scientific name is Lampides boeticus, placed in the genus Lampides.
Who named Lampides boeticus?
The species name is credited as (Linnaeus, 1767).
What other names does the long-tailed blue have?
It is also called Pea blue, Bean butterfly, Long-tailed pea-blue and Long-tailed pea blue.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - LepTraits 1.0: a globally comprehensive dataset of butterfly traits · CC0 1.0 · 1.0
Shirey, V., Larsen, E., Doherty, A. et al. (2022) LepTraits 1.0: a globally comprehensive dataset of butterfly traits. Scientific Data 9: 382. https://doi.org/10.1038/s41597-022-01473-5. Data: https://doi.org/10.6084/m9.figshare.19874602.v1 - TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe · CC BY 4.0 · 2.0
Chauvier, Y., Adde, A., Bergamini, A. et al. (2025) TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe. Zenodo. https://doi.org/10.5281/zenodo.15063844 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Long-tailed blue (Lampides boeticus). Retrieved from https://creaturedata.com/animals/long-tailed-blue
“Long-tailed blue (Lampides boeticus).” CreatureData, 2026, https://creaturedata.com/animals/long-tailed-blue.
@misc{long_tailed_blue_2026,
title = {Long-tailed blue (Lampides boeticus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/long-tailed-blue},
note = {Data as of 2026-11-11}
}