Aeolian Islands
Palmi Paolo.
Farfalle Italiana.
Website: https://www.farfalleitalia.it/ (consulted 31.iii.2024).

Albania
Misja K. 2005.
Fluturat e Shqipërisë. Macrolepidoptera (Rhopalocera, Bombyces & Sphinges, Noctuidae, Geometridae).
Akademia e Shkencave e Shqipërisë, Instituti i Kërkimeve Biologjike,Tiranë, 247 p. [in Albanian].
Website: uploaded on Researchgate by Cuvelier S. who is not a coauthor of this book (cover, url).

Cuvelier S., Parmentier L., Paparisto A. & Couckuyt J. 2018.
Butterflies of Albania – Fluturat e Shqipërisë. New surveys, new species and a new checklist (Lepidoptera: Papilionoidea).
Phegea 46(2): 48-69 (url).

Cuvelier S., Parmentier L., Qirinxhki X. & Paparisto A. 2023.
Butterflies of Albania new data and going online. Fluturatat e Shqipërisë të dhëna të reja dhe faqja online (Lepidoptera: Papilionoidea).
Buletini i Shkencave te Natyres, Tirana university 32(2022): 5-31 (url).

Cuvelier S. & Paparisto A.
Fluturat e Shqipërisë. Buterflies of Albania.
Website: https://biodiversity.unitir.edu.al/Albania_Checklist.htm (consulted 31.iii.2024).

Algeria
Tennent J. 1996.
The butterflies of Morocco, Algeria and Tunisia.
Gem Publishing Company, Brightwell cum Sotwell, Wallingford, Oxfordshire, 217 p.

Tshikolovets V. 2011.
Butterflies of Europe and the Mediterranean Area.
Pardubice: Tshikolovets Publications (Ed.), 544 p.

Andorra
Dantart J. & Jubany J. 2012.
Les Papallones Diürnes d’Andorra.
Centre d’Estudis de la Neu i de la Muntanya d’Andorra, Andorra, 329 p.

Dantart J. & Jubany J.
Cartografia de papallones diürnes d'Andorra.
Website: https://www.iea.ad/cartografia-de-papallones-diuernes-d-andorra (consulted 31.iii.2024).

Austria
Höttinger H. & Pennerstorfer J. 2005.
Rote Liste der Tagschmetterlinge Österreichs (Lepidoptera: Papilionoidea & Hesperioidea).
Zulka K.P. (Ed.): Rote Listen gefährdeter Tiere Österreichs. Checklisten, Gefährdungsanalysen, Handlungsbedarf (xls)

Huemer P. & Wiesmair B. 2017.
DNA-Barcoding der Tagfalter (Lepidoptera, Papilionoidea), Unbekannte genetische Vielfalt im Zentrum Europas.
Meighörner W. (ed). Wissenschaftliches Jahrbuch der Tiroler Landesmuseen 2017. Tiroler Landes museum, Innsbruck. 9–33 p (url).

Reichl E.R. 1992.
Verbreitungsatlas der Tierwelt Österreichs. Band 1. Lepidoptera-Diurna (Tagfalter).
Linz: Forschungsinstitut für Umweltinformatik (Ed.), 159 p (url).

Lepiforum e.V. Bestimmung von Schmetterlingen und ihren Präimaginalstadien.
Website: LepiWiki (lepiforum.org) (consulted 31.iii.2024).

Azores
Tennent W.J. 2005.
A check-list of the butterflies of Macaronesia (Canary Islands, Madeira, Azores).
Entomologist Gazette 56: 133–138.

Vieira V. & Karsholt O. 2010.
Lepidoptera. In: Listagem dos organismos terrestres e marinhos dos Açores [A list of the terrestrial and marine biota from the Azores].
Princípia Editora, Lda (Ed.). 1-429 p. [ISBN 978-989-8131-75-1] (url).

Balearic Islands
García-Barros E., Munguira M.L., Martín Cano J., Romo Benito H., Garcia-Pereira P. & Maravalhas E.S. 2004.
Atlas de las mariposas diurnas de la Península Ibérica e islas Baleares (Lepidoptera: Papilionoidea & Hesperioidea).
Monografias S.E.A., Universidad Autónoma de Madrid & Ministerio de Educación y Cultura (Ed.) 1-228 p. (url).

García-Barros E., Munguira M.L., Stefanescu C. & Vives Moreno A. 2013.
Lepidoptera, Papilionoidea.
Fauna Iberica 37: 1-1216.

Belarus
Korb S.K. & Bolshakov L.V. 2016.
A systematic catalogue of butterflies of the former Soviet Union (Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kyrgyzstan, Kazakhstan, Latvia, Lituania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan) with special account to their type specimens (Lepidoptera: Hesperioidea, Papilionoidea).
Zootaxa 4160(1): 1–324 (url).

Kulak A.V. & Yakovlev R.V. 2018.
Sozological analysis of the Butterflies (Lepidoptera, Papilionoidea) of upper bogs in Belarus.
Ukrainian Journal of Ecology 8(1) : 174–193 (url).

Belgium
De Prins W. 2016.
Catalogus van de Belgische Lepidoptera.
Entomobrochure 9 : 1-279 (url).

Fichefet V., Barbier Y., Baugnée J.Y., Dufrêne M., Goffart P., Maes D., Van Dyck H. 2008.
Papillons de jour de Wallonie (1985–2007). Faune-Flore-Habitats, vol n° 4. Groupe de Travail Lépidoptères Lycaena, Département de l’Etude du Milieu Naturel et Agricole.
(SPW/DGARNE), Gembloux, 320 p.

Lafranchis T. 2000.
Les papillons de jour de France, Belgique et Luxembourg et leurs chenilles.
Collection Parthénope, Biotope (Ed.), 448 p.

Maes D., Herremans M., Vantieghem P., Veraghtert W., Jacobs I., Fajgenblat M. & Van Dyck H. 2021.
IUCN Rode Lijst van de dagvlinders in Vlaanderen 2021 Rapporten van het Instituut voor Natuur- en Bosonderzoek 2021.
Instituut voor Natuur- en Bosonderzoek, Brussel. pp. 1-159 (url).

La biodiversité en Wallonie - Les papillons de jour de Belgique.
Website: http://biodiversite.wallonie.be/fr/nos-especes.html?IDC=3676 (consulted 31.iii.2024).

De Prins W., Steeman C., De Block B., De Prins G., De Prins J., Garrevoet T., Meert R., Sierens T., Veraghtert W. & Wullaert S.
Catalogue of the Lepidoptera of Belgium.
Website: https://projects.biodiversity.be/lepidoptera (consulted 31.iii.2024).

Bosnia and Herzegovina
Koren T. & Jugovic J. 2012.
New data on the presence of three similar species of the genus Melitaea: M. athalia, M. aurelia and M. britomartis (Lepidoptera: Nymphalidae) in the North-Western Balkans.
Annales Ser. hist. nat. 22(1): 25-34 (url).

Lelo S. 2016.
Četvrta revizija popisa dnevnih leptira (Lepidoptera: Hesperioidea i Papilionoidea) Bosne i Hercegovine.
Prilozi fauni Bosne i Hercegovine 12: 49-59 (url).

Koren T. & Kulijer, D. 2016.
New or interesting records of three butterfly (Lepidoptera: Papilionoidea & Hesperioidea) species from Bosnia and Herzegovina and Croatia.
Natura Croatica 25(2): 321-326 (url).

Lelo S. 2018.
Kriptični šumski bijelac, Leptidea juvernica Williams, 1946 (Insecta: Lepidoptera: Pieridae: Dismorphiinae), u Bosni i Hercegovini.
Uzizaţ 14: 59-65 (url).

Russell P. & Pateman J. 2019.
Confirmation of the presence of Melitaea ornata Christoph, 1893 (lepidoptera: Nymphalidae) in Croatia and Bosnia and Herzegovina with its Host-plants.
Entomologist's Gazette 70(2): 79-92 (url).

Bulgaria
Abadjiev S. 2001.
An atlas of the distribution of the butterflies in Bulgaria (Lepidoptera: Hesperioidea & Papilionoidea).
Pensoft, Sofia, 335 p.

Ignatov A., Wetton P. & Beshkov S. 2013.
Chilades trochylus (Freyer, [1845]) (Lep.: Lycaenidae) confirmed for the Bulgaria fauna and doubt cast on earlier records of this and other species.
Entomologist's Rec. J. Var. 125: 119-122 (url).

Langourov M. & Simov N. 2014.
Cacyreus marshalli Butler, 1898 (Lep.: Lycaenidae), a new species for Bulgaria.
Entomologist's Rec. J. Var. 126: 190-192 (url).

Langourov M. 2022.
Butterflies of Bulgaria. Photographic field guide.
National Museum of Natural History, Bulgarian Academy of Sciences, Sofia, 355 p. (url).

Kolev Z.
The Butterflies of Bulgaria.
Website: http://www.butterfliesofbulgaria.net/ (consulted 31.iii.2024).

Canary Islands
Báez M. & Oromí P. 2010.
Lepidoptera. In: Lista de especies silvestres de Canarias. Hongos, plantas y animales terrestres.
Gobierno de Canarias, Santa Cruz de Tenerife. pp 302–318 (url).

Tennent W. 2005.
A check-list of the butterflies of Macaronesia (Canary Islands, Madeira, Azores).
Entomologist Gazette 56: 133–138.

Corsica
Berquier C. & Andrei-Ruiz M.-C. 2017.
Liste rouge des Papillons diurnes et Zygène de Corse.
Office de l’Environnement de la Corse & DREAL de Corse. Corte. 12 p (url).

Crete
Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Rowlings M. & Cuvelier S. 2018.
Zizeeria karsandra (Lepidoptera: Lycaenidae) recorded from Crete (Greece): observations, distribution and habitats.
Phegea 46 (4): 126-131 (url).

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

Gigourtakis N.
Butterflies of Crete. The Flying Wonders of Cretan Natural Heritage.
Website: https://butterfliesofcrete.com/ (consulted 31.iii.2024).

Croatia
Šašić M. & Mihoci I. 2011.
Annotated checklist of Croation butterflies with vernacular names.
Nat. Croat. 20(2): 425-436 (url).

Koren T., Beretta S., Črne M. & Verovnik R. 2013.
On the distribution of Pyrgus malvoides (Elwes & Edwarts, 1897) (Lepidoptera: Hesperiidae) at the eastern part of its range.
Entomologist's Gazette 64: 225-234 (url).

Koren T., Črne M. & Španić R. 2013.
On the questionable record of the Balkan Grayling, Hipparchia senthes (Fruhstorfer, 1908), in Croatia (Lepidoptera: Nymphalidae, Satyrinae).
Nachr. entomol. Ver. Apollo, N.F. 34(3): 133–136 (url).

Verovnik R., Koren T. & Glavan G. 2015.
Contribution to the knowledge of the butterfly and skipper fauna of northern Dalmatia mainland.
Nat. Croat. 24(2): 265-280 (url).

Koren T. & Kulijer, D. 2016.
New or interesting records of three butterfly (Lepidoptera: Papilionoidea & Hesperioidea) species from Bosnia and Herzegovina and Croatia.
Natura Croatica 25(2): 321-326 (url).

Koren T., Withrington D., Štih A. & Gros P. 2018.
The butterflies of the Istria county (Istria, Croatia): A review of their distribution, status and conservation requirements (Lepidoptera, Rhopalocera).
Gortania. Botanica, Zoologia 40: 95-114 (url).

Koren T., Martinović M. & Dender D. 2020.
The distribution and status of Sage Skipper Muschampia proto (Ochsenheimer, 1808) (Lepidoptera, Hesperiidae) at the limit of its range in the north-western Balkans.
Nota Lepidopterologica 43: 211-220 (url).

Cyclades
Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

Cyprus
John E.
Cyprus butterflies. A Guide to the Butterflies of Cyprus, Cyprus Butterfly Recording Schema and Cyprus Butterfly Study Group.
Website: http://www.cyprusbutterflies.co.uk/index.html (consulted 31.iii.2024).

Czech Republic
Beneš J., Konvička M. et al. 2002.
Butterflies of the Czech Republic: Distribution and Conservation I, II.
SOM. Prague, 857 p.

Beneš J. & Konvička M. 2017.
Hesperioidea a Papilionoidea (denní motýli). In: Hejda R., Farkač J. & Chobot K. (Ed.).
Červený seznam ohrožených druhů České republiky. Bezobratlí [Red List of threatened species of the Czech Republic. Invertebrates].
Vol. 36: 177–234 (url).

Mapování a ochrana motýlů České republiky.
Website: https://www.lepidoptera.cz/motyli/ (consulted 31.iii.2024).

Denmark
Eliasson C., Ryrholm N., Holmer M., Jilg K. & Gardenfors, U. 2005.
Fjärilar: Dagfjärilar / Hesperiidae–Nymphalidae. Nationalnyckeln till Sveriges flora och fauna.
Uppsala: ArtDatabanken, Sveriges Lantbruksuniversitet, 407 p.

Aarvik L., Bengtsson B.Å., Elven H., Ivinskis P., Jürivete U., Karsholt O., Mutanen M. & Savenkov N. 2017.
Nordic-Baltic Checklist of Lepidoptera.
Norwegian Journal of Entomology. Suppl. 3: 1–236 (url).

Lars Andersen.
Butterflies from Scandinavia; Denmark - Sweden - Norway and Finland.
Website: http://www.danske-natur.dk/indexsyveng.html (consulted 31.iii.2024).

Dodecanese Islands
Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Cuvelier S. & Mølgaard M. 2012.
Butterflies and Skippers in the Dodecanese Islands (Greece): new data and an update on their distribution (Lepidoptera: Hesperioidea & Papilionoidea).
Phegea 40 (3): 66-80 (url).

Cuvelier S. & Mølgaard M.
Butterflies and Skippers in the Dodecanese Islands (Greece): new data and an update on their distribution (Lepidoptera: Hesperioidea & Papilionoidea) – Revision of 14.xii.2014.
Website: https://archwestpalepido.be/VVE/Dodekanesos.htm (consulted 31.iii.2024).

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

East Aegean Islands
Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Cuvelier S. 2014.
The Butterflies and Skippers of the North-Aegean Islands of Híos, Psará and Lésvos (Greece). New observations and an update on their distribution (Papilionoidea & Hesperioidea).
Phegea 42(3): 58-70 (url).

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

Egypt
Tshikolovets V. 2011.
Butterflies of Europe and the Mediterranean Area.
Pardubice: Tshikolovets Publications (Ed.), 544 p.

Estonia
Aarvik L., Bengtsson B.Å., Elven H., Ivinskis P., Jürivete U., Karsholt O., Mutanen M. & Savenkov N. 2017.
Nordic-Baltic Checklist of Lepidoptera.
Norwegian Journal of Entomology. Suppl. 3: 1–236 (url).

Euboea
Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

European Russia
Korb S.K. & Bolshakov L.V. 2016.
A systematic catalogue of butterflies of the former Soviet Union (Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kyrgyzstan, Kazakhstan,
Latvia, Lituania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan) with special account to their type specimens (Lepidoptera: Hesperioidea, Papilionoidea).
Zootaxa 4160(1): 1–324 (url).

Sinev S.Y. (ed.). 2019.
Catalogue of the Lepidoptera of Russia. Edition 2.
St. Petersburg: Zoological Institute RAS, 448 p (url).

Tuzov V.K. 2000.
Guide to the butterflies of Russia and adjacent territories.
Vol 1-2. Pensoft Publishers, Sofia.

Lepidoptera Caucasi.
Website: http://www.babochki-kavkaza.ru/ (consulted 31.iii.2024).

European Turkey
Hesselbarth G., Van Oorschot H., & Wagener S. 1995.
Die Tagfalter der Turkei. 3 band.
Selbstverlag Sigbert Wagener Hemdener Weg, 19.

Faroe Islands
Jensen J. & Thomsen K. 2019.
Updated overview of Lepidoptera in the Faroe Islands, by 31 December 2019.
Fróðskaparrit 65. og 66. bók (url).

Finland
Eliasson C., Ryrholm N., Holmer M., Jilg K. & Gardenfors, U. 2005.
Fjärilar: Dagfjärilar / Hesperiidae–Nymphalidae. Nationalnyckeln till Sveriges flora och fauna.
Uppsala: ArtDatabanken, Sveriges Lantbruksuniversitet, 407 p.

Aarvik L., Bengtsson B.Å., Elven H., Ivinskis P., Jürivete U., Karsholt O., Mutanen M. & Savenkov N. 2017.
Nordic-Baltic Checklist of Lepidoptera.
Norwegian Journal of Entomology. Suppl. 3: 1–236 (url).

Lars Andersen.
Butterflies from Scandinavia; Denmark - Sweden - Norway and Finland.
Website: http://www.danske-natur.dk/indexsyveng.html (consulted 31.iii.2024).

France
Lafranchis T. 2000.
Les papillons de jour de France, Belgique et Luxembourg et leurs chenilles.
Collection Parthénope, Biotope (Ed.). pp. 1-448.

Lafranchis T., Jutzeler D., Guillosson J.-Y., Kan P. & Kan B. 2015.
La vie des papillons. Ecologie, Biologie et Comportement des Rhopalocères de France.
Diatheo, Montpellier (Ed.), 751 p.

Inventaire national du patrimoine naturel (INPN).
Website: https://inpn.mnhn.fr/accueil/index (consulted 31.iii.2024).

Germany
Reinhardt R. & Bolz R. 2011.
Rote Liste und Gesamtartenliste der Tagfalter (Rhopalocera) (Lepidoptera: Papilionoidea et Hesperioidea) Deutschlands.
Website: https://www.rote-liste-zentrum.de/de/Tagfalter-Lepidoptera-Papilionoidea-Hesperioidea-1760.html (consulted 31.iii.2024).

Lepiforum e.V. Bestimmung von Schmetterlingen und ihren Präimaginalstadien.
Website: LepiWiki (lepiforum.org) (consulted 31.iii.2024).

Schmetterlinge Deutschlands.
Website: https://www.schmetterlinge-d.de/Lepi/Default.aspx (consulted 31.iii.2024).

Grand Duchy of Luxembourg
Lafranchis T. 2000.
Les papillons de jour de France, Belgique et Luxembourg et leurs chenilles.
Collection Parthénope, Biotope (Ed.), 448 p.

Weber G., Conrad E. & Kayser M. 2012.
Les papillons de jour du Luxembourg.
Natur&ëmwelt (Ed.). pp. 1-39 (url).

Greece
Müller G, Kravchenko V., Phillips A., Shwarz-Tzachor R. & Benyamini D. 2005.
The first record of the Eremic Lycaenid Deudorix livia (Klug, 1834) in Europe (Lepidoptera, Lycaenidae).
Atalanta 36(1/2): 109-112.

Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

Hungary
Gergely P. & Hudák T. 2021.
Revision of Threatened Butterfly Species in Hungary (Lepidoptera: Rhopalocera).
Lepidopterologica Hungarica 17(1): 27–39 (url).

Wagener S. 1988.
What are the valid names for the two genetically different taxa currently included within Pontia daplidice (Linnaeus, 1758) ? (Lepidoptera : Pieridae).
Nota lepid. 11(1): 21-38 (url).

Dincă V., Székely L., Bálint Z., Skolka M., Török S. & Hebert D. 2017.
Improving knowledge of the subgenus Agrodiaetus (Lepidoptera: Lycaenidae: Polyommatus) in Eastern Europe: Overview of the Romanian fauna.
Eur. J. Entomol. 114: 179–194 (url).

Iceland
Mølgaard M. (personnal communication)

Imbros
Okyar Z. & Aktaç N. 2006.
Identification of Butterfly (Lepidoptera: Rhopalocera) Fauna of Gökçeada and Bozcaada, Turkey.
Pakistan Journal of Biological Sciences 9(1): 76-79 (url).

Seven S. 2008.
The butterflies of the northern Aegean Island of Gökçeada (Imros) (Lepidoptera: Papilionoidea & Hesperioidea).
Shilap Revta. lepid. 36(141): 125-132 (url).

Ionian Islands
Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

Ireland
Thomas J. & Lewington R. 1991.
The Butterflies of Britain & Ireland.
Dorling Kindersleyin association with the National Trust, 224 p.

Eeles P.
UK Butterflies. Species distributions.
Website: https://www.ukbutterflies.co.uk/distributions.php (consulted 31.iii.2024)

Phelan A.
Irish butterflies.
Website: http://www.irishbutterflies.com/index.html (consulted 31.iii.2024)

Italy
Palmi Paolo.
Farfalle Italiana.
Website: https://www.farfalleitalia.it/ (consulted 31.iii.2024).

Kaliningrad
Sinev S.Y. (ed.). 2019.
Catalogue of the Lepidoptera of Russia. Edition 2.
St. Petersburg: Zoological Institute RAS. pp. 1-448 (url).

Kosovo
Jakšić P. & Živić N. 1995-1998.
The Butterflies of the Kosovo and Metohija in South Serbia (Lepidoptera: Hesperioidea and Papilionoidea).
Glasnik Prirodnjačkog Muzeja u Beogradu 49–50: 201–218 (url).

Zhushi-Etemi F., Bytyci P., Ismail M. & Musliu M. 2017.
Contribution to the knowledge of Nymphalidae fauna (Lepidoptera: Rhopalocera) in Kosovo.
Trakia Journal of Sciences 2: 101–105 (url).

Kabashi-Kastrati E., Zhushi-Etemi F., Çadraku H. & Bytyçi P. 2022.
First record of Heteropterus morpheus (Pallas, 1771) (Lepidoptera: Hesperiidae) from the Republic of Kosovo.
Ecologia Balkanica 14(1): 149-153 (url).

Kabashi-Kastrati E., Zhushi-Etemi F. & Bytyçi P. 2022.
Notes on the presence of Erebia alberganus (De Prunner, 1879) (Lepidoptera: Nymphaliddae) for Kosovo.
Polish Journal of Natural Sciences 37(4): 445-453 (url).

Lampedusa
Vodă R., Dapporto L., Dincă V., Shreeve T., Khaldi M., Barech G., Rebbas K., Sammut P., Scalercio S., Hebert P. & Vila R. 2016.
Historical and contemporary factors generate unique butterfly communities on islands.
Scientific Reports 6, 28828 (url).

Cassar L. & Catania A. 2022.
Preliminary findings on the presence of a taxon with morphological traits of Papilio saharae Oberthür, 1879 in Lampedusa (Italy) (Lepidoptera: Papilionidae).
Shilap Revista de lepidopterología 50(198): 303-312 (url).

Palmi Paolo.
Farfalle Italiana.
Website: https://www.farfalleitalia.it/ (consulted 31.iii.2024).

Latvia
Aarvik L., Bengtsson B.Å., Elven H., Ivinskis P., Jürivete U., Karsholt O., Mutanen M. & Savenkov N. 2017.
Nordic-Baltic Checklist of Lepidoptera.
Norwegian Journal of Entomology Suppl. 3: 1–236 (url).

Latvijas dienastauriņi.
Website: https://www.taurini.lv/index.html (consulted 31.iii.2024).

Libya
Tshikolovets V. 2011.
Butterflies of Europe and the Mediterranean Area.
Pardubice: Tshikolovets Publications (Ed.), 544 p.

Liechtenstein
Aistleitner E. & Aistleitner U. 1996.
Die Tagfalter des Fürstentums Liechtenstein (Lepidoptera: Papilionoidea und Hesperioidea).
Vol. 16. Naturkundliche Forschung im Fürstentum Liechtenstein. Regierung des Fürstentums Liechtenstein, Vaduz: 1-159 (url).

Lithuania
Aarvik L., Bengtsson B.Å., Elven H., Ivinskis P., Jürivete U., Karsholt O., Mutanen M. & Savenkov N. 2017.
Nordic-Baltic Checklist of Lepidoptera.
Norwegian Journal of Entomology Suppl. 3: 1–236 (url).

Rašomavičius V. (Red.). 2021.
Lietuvos raudonoji knyga (Gyvūnai-Augalai-Grybai). [Red Data Book of Lithuania (Animals-Plants-Fungi)].
Ministry of environment of the Republic of Lithuania. Institute of Botany, Institute of Ecology of Vilnius University:144-170 (url).

Povilas I. 1998.
Butterflies (Lepidoptera, Rhopalocera) of Lithuania: Fauna, Distribution and Protection.
Acta Zoologica Lituanica 8: 9-22 (url).

Madeira
Tennent W. 2005.
A check-list of the butterflies of Macaronesia (Canary Islands, Madeira, Azores).
Entomologist Gazette 56: 133–138.

Malta
Cassar L. 2018.
A revision of the butterfly fauna of the Maltese Islands.
Naturalista sicil., S. IV, XLII(1): 3-19 (url).

Moldova
Korb S.K. & Bolshakov L.V. 2016.
A systematic catalogue of butterflies of the former Soviet Union (Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kyrgyzstan, Kazakhstan,
Latvia, Lituania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan) with special account to their type specimens (Lepidoptera: Hesperioidea, Papilionoidea).
Zootaxa 4160(1): 1–324 (url).

Mølgaard M. 2017.
New distributional data regarding the butterflies (Lepidoptera: Papilionoidea) of the Republic of Moldova.
Phegea 45(3): 65-74 (url).

Montenegro
Franeta F. 2018.
Checklist of the butterflies (Lepidoptera: Papilionoidea) of Montenegro.
Zootaxa 4392(1): 128-148 (url).

Morocco
Tennent J. 1996.
The butterflies of Morocco, Algeria and Tunisia.
Gem Publishing Company, Brightwell cum Sotwell, Wallingford, Oxfordshire, 217 p.

Tarrier M. & Delacre J. 2008.
Les Papillons de jour du Maroc, guide d'identification et de bio-indication.
Biotope (Ed.), collection Parthénope, 480 p.

Tshikolovets V. 2011.
Butterflies of Europe and the Mediterranean Area.
Pardubice: Tshikolovets Publications (Ed.), 544 p.

Netherlands
Geraedts W. 1986.
Voorlopige Atlas van de nederlandse dagvlinders – Rhopalocera.
Landelijk Dagvlinderproject LH, Wageningen, 499 p.

Swaay C. van-. 2018.
Basisrapport Rode Lijst Dagvlinders 2019 volgens Nederlandse en IUCN-criteria. Rapport VS2019.001, De Vlinderstichting. Wageningen (url)

De Vlinderstichting.
Website: https://www.vlinderstichting.nl (consulted 31.iii.2024).

North Aegean Islands
Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

North Macedonia
Krpač V. & Darcemont C. 2012.
Red list of butterflies (Lepidoptera: Hesperioidea & Papilionoidea) for Republic of Macedonia.
Revue Ecologie (Terre Vie) 67: 117–122 (url).

Melovski D. 2004.
Araschnia levana (L., 1758), a new species for the Macedonian butterfly fauna (Lep.: Nymphalidae).
The Entomologist’s Record and Journal of Variation 116: 273–275 (url).

Krpač V., Darcemont C., Krpač M. & Lemonnier-Darcemont M. 2011.
Fauna of butterflies (Papilionoidea) in the National Park Galičica, Republic of Macedonia.
Nota lepidopterologica 34(1): 49–78 (url).

Krpač V., Krpač M., Lemonnier-Darcemont M., Darcemont C., Postolov M. & Lazarevska S. 2013.
Invertebrates Fauna (Invertebrata) in the National Park of Mavrovo.
Plant Protection 24(26/27): 7–92 (url).

Abdija X., Beadini N., Beadini S. & Iseni A. 2013.
Preliminary data for the familia Nymphalidae of Sharr Mountain and its surroudings (Mavrovo and Pollog).
Anglisticum Journal (IJLLIS) 2(2): 227–236 (url).

Melovski D. & Bozhinovsk E. 2014.
New records for four butterfly species (Lepidoptera: Papilionoidea & Hesperioidea) in the Republic of Macedonia.
Journal of Natural Sciences Research 4(7): 40–44 (url).

Russell P., Zitnan D. & Major V. 2015.
Confirmation of the presence of Melitaea ornata Christoph, 1893 (Lepidoptera: Nymphalidae) in Macedonia (FYROM) and its host-plants 2015.
Entomologist’s Gazette 66: 13–24 (url).

Švara V., Popović M., Peternel A., Radevski Đ., Vukotić K. & Verovnik R. 2016.
Surveys of butterfly and skipper fauna in the southwestern part of the Republic of Macedonia (Lepidoptera: Papilionoidea & Hesperioidea).
Natura Sloveniae 18(2): 23–37 (url).

Micevski N. & Micevski B. 2017.
Cacyreus marshalli (Butler, 1898) (Lepidoptera: Lycaenidae) Confirmed for the Republic of Macedonia.
Bull. Nat. Hist. Mus. Plovdiv 2: 17-20 (url).

Norway
Eliasson C., Ryrholm N., Holmer M., Jilg K. & Gardenfors, U. 2005.
Fjärilar: Dagfjärilar / Hesperiidae–Nymphalidae. Nationalnyckeln till Sveriges flora och fauna.
Uppsala: ArtDatabanken, Sveriges Lantbruksuniversitet, 407 p.

Aarvik L., Bengtsson B.Å., Elven H., Ivinskis P., Jürivete U., Karsholt O., Mutanen M. & Savenkov N. 2017.
Nordic-Baltic Checklist of Lepidoptera.
Norwegian Journal of Entomology. Suppl. 3: 1–236 (url).

Lars Andersen.
Butterflies from Scandinavia; Denmark - Sweden - Norway and Finland.
Website: http://www.danske-natur.dk/indexsyveng.html (consulted 31.iii.2024).

Pantelleria
Vodă R., Dapporto L., Dincă V., Shreeve T., Khaldi M., Barech G., Rebbas K., Sammut P., Scalercio S., Hebert P. & Vila R. 2016.
Historical and contemporary factors generate unique butterfly communities on islands.
Scientific Reports 6, 28828 (url).

Palmi Paolo.
Farfalle Italiana.
Website: https://www.farfalleitalia.it/ (consulted 31.iii.2024).

Poland
Buszko J. & Nowacki J. 2017.
A distributional checklist of the Lepidoptera of Poland.
Polsih Entomological Society, Poznań, 222 p.

Sachanowicz K., Wower A. & Buszko J. 2011.
Past and present distribution of the cryptic species Leptidea sinapis and L. reali (Lepidoptera: Pieridae) in Poland and its implications for the conservation of these butterflies.
European Journal of Entomology 108: 235–242 (url).

Bury J. 2023.
Pierwsza obserwacja bielinka bliźniaka Pieris mannii (Mayer, 1851) (Lepidoptera: Pieridae) w Polsce.
Acta entomologica silesiana 31: 1-7 (url).

Biodiversity Map. Database.
Website: https://baza.biomap.pl/en/data/unit/ksib00001/taxa/cf/y (consulted 31.iii.2024).

Pontic Islands
Palmi Paolo.
Farfalle Italiana.
Website: https://www.farfalleitalia.it/ (consulted 31.iii.2024).

Portugal
Maravalhas E. 2003.
As Borboletas de Portugal.
Ediçaõ Vento Norte, Porto. 464 p.

García-Barros E., Munguira M.L., Martín Cano J., Romo Benito H., Garcia-Pereira P. & Maravalhas E.S. 2004.
Atlas de las mariposas diurnas de la Península Ibérica e islas Baleares (Lepidoptera: Papilionoidea & Hesperioidea).
Monografias S.E.A., Universidad Autónoma de Madrid & Ministerio de Educación y Cultura (Ed.) pp. 1-228 (url).

Marabuto E. & Maravalhas E. 2008.
Contribuição para o conhecimento dos Lepidopteros do Sitio Natura-2000 "Montesinho-Nogueira", Trás-os-Montes, Portugal (Insecta-Lepidoptera).
Boletín Sociedad Entomológica Aragonesa 43: 45–151.

Marabuto E. 2022.
Spialia rosae Hernández-Roldán, Dapporto, Dincă, Vicente & Vila,2016, and 17 moth species new for the fauna of Portugal(Insecta: Lepidoptera).
Arquivos entomoloxicos 25: 305-322 (url).

Romania
Rákosy L, Goia M, Kovács Z. 2003.
Catalogul Lepidopterelor României.
Societatea Lepidopterologică Română, Cluj-Napoca, 446 p.

Székely L. 2008.
The butterfies of Romania.
Brastar Print, Brașov, 305 p.

Rákosy L. 2013.
Fluturii diurni din România. Cunoaștere, protecție, conservare.
Editura MEGA, Cluj-Napoca, 352 p.

Groza B., Vodă R., Székely L., Vila R. & Dincă V. 2021.
Genetics and extreme confnement of three overlooked butterfy species in Romania call for immediate conservation actions.
Journal of Insect Conservation 25:137–146 (url).

Vlad Dinca.
LepiLab. Lepidoptera Research Lab. Butterflies of Romania.
Website :https://vleps.wordpress.com/butterflies-of-romania/ (consulted 31.iii.2024)

Sardinia
Palmi Paolo.
Farfalle Italiana.
Website: https://www.farfalleitalia.it/ (consulted 31.iii.2024).

Serbia
Alciphron. Habiprot.
Website: https://alciphron.habiprot.org.rs/index.html (consulted 31.iii.2024).

Sicily
Palmi Paolo.
Farfalle Italiana.
Website: https://www.farfalleitalia.it/ (consulted 31.iii.2024)

Slovakia
Pastorális G., Kalivoda H. & Panigaj Ľ. 2013.
Zoznam motýľov (Lepidoptera) zistených na Slovensku. Checklist of Lepidoptera recorded in Slovakia.
Folia faunistica Slovaca 18(2): 101–232 (url).

Slovenia
Verovnik R., Rebeušek F. & Jež M. 2012.
Atlas dnevnih metuljev (Lepidoptera: Rhopalocera) Slovenije, Atlas of butterflies (Lepidoptera: Rhopalocera) of Slovenia.
Center za kartografijo favne in flore, Miklavž na Dravskem polju, 456 p. [ISBN 978-961-93280-0-2]

Čelik T. 2013.
Supplements to the Atlas of Butterflies (Lepidoptera: Rhopalocera) of Slovenia.
Hacquetia 12(2): 55-94 (url).

Spain
García-Barros E., Munguira M.L., Martín Cano J., Romo Benito H., Garcia-Pereira P. & Maravalhas E.S. 2004.
Atlas de las mariposas diurnas de la Península Ibérica e islas Baleares (Lepidoptera: Papilionoidea & Hesperioidea).
Monografias S.E.A., Universidad Autónoma de Madrid & Ministerio de Educación y Cultura (Ed.) pp. 1-228 (url).

Vila R., Stefanescu C. & Sesma J.M. 2018.
Guia de les papallones diürnes de Catalunya.
Lynx (Ed.), Bellaterra, Barcelona, 509 p.

García-Barros E., Munguira M.L., Stefanescu C. & Vives Moreno A. 2013.
Lepidoptera, Papilionoidea.
Fauna Iberica 37: 1-1216.

Sporades
Pamperis L. 2009.
The butterflies of Greece. Second Edition revised and enlarged.
Editions Pamperis, Athens, 766 p.

Pamperis L. 2024.
The butterflies of Greece. An update of distribution Maps, Plates and Diagrams 3.3, in Map 3.4, in Chart 4.15 and in Chart 4.16.
Website: https://pamperis.gr/wp-content/uploads/2023/12/Maps-Butterflies-of-Greece-WGS84-Pamperis-31-XII-2023-Reduced.pdf (consulted 31.iii.2024).

Sweden
Eliasson C., Ryrholm N., Holmer M., Jilg K. & Gardenfors, U. 2005.
Fjärilar: Dagfjärilar / Hesperiidae–Nymphalidae. Nationalnyckeln till Sveriges flora och fauna.
Uppsala: ArtDatabanken, Sveriges Lantbruksuniversitet, 407 p.

Aarvik L., Bengtsson B.Å., Elven H., Ivinskis P., Jürivete U., Karsholt O., Mutanen M. & Savenkov N. 2017.
Nordic-Baltic Checklist of Lepidoptera.
Norwegian Journal of Entomology. Suppl. 3: 1–236 (url).

Lars Andersen.
Butterflies from Scandinavia; Denmark - Sweden - Norway and Finland.
Website: http://www.danske-natur.dk/indexsyveng.html (consulted 31.iii.2024).

Switzerland
Collectif. 1987.
Tagfalter und ihre Lebensräume. Band 1.
Schweizerischer Bund für Naturschutz, Basel, 516p.

Gonseth Y. 1987.
Atlas de distribution des papillons diurnes de Suisse (Lepidoptera Rhopalocera).
Documenta Faunistica Helvetiae 5: 1-242.

Wermeille E., Chittaro Y. & Gonseth Y. 2014.
Liste rouge Papillons diurnes et Zygènes. Espèces menacées en Suisse, état 2012.
Office fédéral de l’environnement, Berne, et Centre Suisse de Cartographie de la Faune, Neuchâtel. L’environnement pratique n° 1403 (Ed.). pp. 1-97 (url).

Lepiforum e.V. Bestimmung von Schmetterlingen und ihren Präimaginalstadien.
Website: LepiWiki (lepiforum.org) (consulted 31.iii.2024).

Atlas en ligne des papillons de Suisse.
Website: https://species.infofauna.ch/groupe/41/especes (consulted 31.iii.2024).

Tunisia
Tennent J. 1996.
The butterflies of Morocco, Algeria and Tunisia.
Gem Publishing Company, Brightwell cum Sotwell, Wallingford, Oxfordshire, 217 p.

Tshikolovets V. 2011.
Butterflies of Europe and the Mediterranean Area.
Pardubice: Tshikolovets Publications (Ed.), 544 p.

Tuscan Archipelago
Palmi Paolo.
Farfalle Italiana.
Website: https://www.farfalleitalia.it/ (consulted 31.iii.2024).

Ukraine
Korb S.K. & Bolshakov L.V. 2016.
A systematic catalogue of butterflies of the former Soviet Union (Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kyrgyzstan, Kazakhstan,
Latvia, Lituania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan) with special account to their type specimens (Lepidoptera: Hesperioidea, Papilionoidea).
Zootaxa 4160(1): 1–324 (url).

Lepidoptera Caucasi.
Website: http://www.babochki-kavkaza.ru/ (consulted 31.iii.2024).

United Kingdom
Thomas J. & Lewington R. 1991.
The Butterflies of Britain & Ireland.
Dorling Kindersleyin association with the National Trust, 224 p.

Eeles P.
UK Butterflies. Species distributions.
Website: https://www.ukbutterflies.co.uk/distributions.php (consulted 31.iii.2024)

General
Tshikolovets V. 2003.
Butterflies of Eastern Europe, Urals and Caucasus.
Czech Rep.: Konvoj Ltd (Ed.), 176 p.

Tshikolovets V. 2011.
Butterflies of Europe and the Mediterranean Area.
Pardubice: Tshikolovets Publications (Ed.), 544 p.