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. 2024 Dec 27;12:e141734. doi: 10.3897/BDJ.12.e141734

Bees of the Mediterranean basin: biodiversity insights from specimens in the IMBE collection (Marseille, France)

Louhane Schneider 1, Charlène Lossouarn 1, Benoît Geslin 2,1,3,4,5,6, Coline C Jaworski 2,1,3,4,5, Lucie Schurr 2,4,5,3,7, Lise Ropars 8, Claire Bouchot 2,1,3,4,5, Marie Zakardjian 2,1,3,4,5, Floriane Flacher 2,3,4,5, Matthieu Aubert 9, David Genoud 10, Éric Dufrêne 9, Vincent Leclercq 9, Gabriel Nève 2,1,3,4,5,
PMCID: PMC11699511  PMID: 39758944

Abstract

Background

The spectacular decline in pollinators and their prominent role in pollination of natural and cultivated plants has stimulated research on pollinating insects. Over the last ten years, much ecological research has been carried out on bees, often generating a large volume of specimens and increasing the importance of entomological collections. Here, we present the bee collection of the IMBE laboratory (Marseille, France) after ten years of study of plant-pollinator networks.

New information

We provide distribution data on 2181 specimens belonging to 246 species of bees, mainly from the Mediterranean Region of France. One of the recorded species, Lasioglossumsoror, is classified as "endangered" at the European level, while 68 of the recorded species are currently Data Deficient according to the 2014 Red List of European bees. This dataset contributes to the broader effort to enhance the knowledge of French bee diversity. It aligns with the objectives of the French Pollinator Plan and supports the development of a national Red List. In this context, information about the distribution of wild bees from the Mediterranean Region, which harbours the highest species diversity in mainland France, are of particular importance.

Keywords: Hymenoptera, Apoidea, distribution, France, Andrenidae, Apidae, Colletidae, Halictidae, Megachilidae, Melittidae

Introduction

Dramatic declines in many pollinator populations have been documented worldwide (Raven and Wagner 2021) raising concerns about the maintenance of their species through time and space and the sustainability of the ecosystem services they provide. In this context, accurate data on pollinator distribution is crucial to document their current status. Amongst these, specimens preserved in natural history collections are reliable pieces of the puzzle that describes ecological communities, habitats and ecosystem health (Raven and Miller 2020). Opening these collections and making them accessible through digitisation and publication is, therefore, of paramount importance for generating science-driven conservation strategies.

Over the past decades, researchers at the Mediterranean Institute of marine and continental Biodiversity and Ecology (IMBE) in Marseille have been investigating relationships between pollinators and plants across a variety of habitats in France, with a focus on the Bouches-du-Rhône Department (Schurr et al. 2019, Ropars et al. 2020a, Ropars et al. 2020b, Schurr et al. 2021, Schurr et al. 2022, Carisio et al. 2022, Jaworski et al. 2022, Badiane et al. 2024). Several projects have been undertaken by the Institute, including field courses on bee identification (Geslin et al. 2018) and field campaigns in the Calanques National Park and the City of Marseille. These campaigns used standardised sampling protocols such as netting, pan-trapping and trap-nesting (insect hotels, Geslin et al. (2020)). This work generated the collection of many specimens that have been kept in the IMBE since 2015. Additionally, some specimens were sent to enrich the collection from some of the renowned professional taxonomists of France (namely M. Aubert, E. Dufrêne and D. Genoud). Each of the specimens collected has been meticulously pinned, labelled and was frozen at least twice a year to avoid the emergence of pests.

This paper aims to publish the raw data of bee specimens currently housed in the IMBE collections. These include specimens collected during studies, as well as those donated to the Institute, with the exception of specimens provided to professional taxonomists, lost, destroyed during preparation or used for DNA sequencing, representing a small fraction of the collection. This dataset serves as a valuable resource for advancing our understanding of the Mediterranean Basin's bee fauna and supports ongoing efforts to develop national checklists and Red Lists.

General description

Purpose

The dataset presented here includes information on a total of 2,181 bee specimens, collected between 2003 and 2023, all identified to the species level, along with detailed information on the date and location of each capture. This dataset includes some Mediterranean species for which few published records are available in national (inpn.mnhn.fr) and international (www.gbif.org) databases.

Additional information

The project aims to compile all recorded data on Apoidea, collected during field campaigns and from donations over the past 10 years, as well as opportunistic captures sent by entomologists to the IMBE laboratory. A total of three scientific field campaigns were conducted in the protected area of the Calanques National Park (Geslin et al. 2018, Ropars et al. 2018, Schurr et al. 2019), two in the urban parks of Marseille (Geslin et al. 2020, Badiane et al. 2024), one in humid area (Solère et al. 2022) and three within the Alpes-de-Haute-Provence Regional Park (Schurr et al. 2021, Carisio et al. 2022, Schurr et al. 2022). A few additional specimens were gathered elsewhere in France, Spain and Italy and sent to the IMBE.

Sampling methods

Sampling description

For each specimen, the following information was retrieved: species, date and location of capture, sex and collector, as well as any relevant ecological data, such as the plant on which the specimen was captured. Specimens were captured with an entomological net or with coloured pan traps. In addition to the data on the original labels, each specimen was assigned a unique identification code written on an added label.

Quality control

The specimens were identified by Mathieu Aubert, Claire Bouchot, Eric Dufrêne, Benoît Geslin, Vincent Leclercq, Lise Ropars, Lucie Schurr, Erwin Scheuchl, Benoît Martha, Emile Gigandet, Gilles Mahé, Yvan Brugerolles, Gérard Le Goff and Nicolas J. Vereecken. The taxonomy was checked to be compatible with the French TAXREF v.17,0 from the Museum national d’Histoire naturelle (Paris) data base (Gargominy et al. 2021) and with the latest checklist of the bees of the French fauna (Ropars et al. in press). In case of name change due to taxonomic update or identification correction, the original name given to the specimen was retained in the 'previousIdentifications' column.

Step description

All data on the 2181 identified specimens currently in the IMBE collection were input in a table format. Latitude and longitude coordinates of each capture location were obtained either directly from the label or inferred from the location description. In the second case, coordinates were retrieved using the geoportail.gouv.fr website. Coordinates originally in Lambert93 format and in degrees minutes seconds were transformed to standard GPS format (latitude and longitude in decimal degrees). The locations were then verified using the https://www.geoportail.gouv.fr/ website. Coordinates uncertainty (‘coordinateUncertaintyInMeters’ column) was set to at least 100 m, depending on the level of detail provided on the capture location on the specimen label. All formats follow GBIF Darwin Core specification, to ensure interoperability with other international databases.

For 32 specimens, only identification to the genus level was possible. This is indicated by a value of 0 in the ‘identificationVerificationStatus’ column, with relevant additional details provided in the ‘identificationRemarks’ column. Species groups were indicated with ‘gr.’ in the ‘identificationQualifier’ column, such as for the Bombusterrestris species group, which requires genetic data for accurate species-level identification (Murray et al. 2008). ‘cf.’ was used to indicate an approximate identification. This was the case of some Hylaeus specimens which could only be assigned to a couple of species: H.pictipes or H.taeniolatus.

All data were entered in CSV format, with the fields separated by tabs and encoded in UTF-8, thus following the protocol compatible with the GBIF database (Global Biodiversity Information Facility, https://www.gbif.org/fr/) as used in previously published datasets (Meunier et al. 2023, Nève et al. 2024, Ollivier et al. 2024).

Geographic coverage

Description

Most of the specimens come from France (2178), one is from Spain and two are from Italy.

In France, 93% the data come from the Bouches-du-Rhône Department, with some from Var, Alpes-Maritimes and Alpes-de-Haute-Provence (Fig. 1; Suppl. material 1).

Figure 1.

Figure 1.

Distribution of Anthophila specimens in the IMBE collection. Specimens from the Departments of Yvelines (n = 13), Seine-et-Marne (n = 4), Manche (n = 2) and Essonne (n = 8) are omitted. One specimen from Spain and two from Italy are omitted.

Coordinates

39.30 and 49.33 Latitude; -1.28 and 9.20 Longitude.

Taxonomic coverage

Description

The dataset covers 246 species of Apoidea belonging to the six bee families found in France: Andrenidae, Apidae, Colletidae, Halictidae, Megachilidae and Melittidae (Tables 1, 2).

Table 1.

Numbers of species and specimens per family in the IMBE Anthophila collection.

Family Number of species Number of specimens
Andrenidae 47 301
Apidae 73 649
Colletidae 19 80
Halictidae 44 318
Megachilidae 61 831
Melittidae 2 2
Total 246 2181

Table 2.

Number of specimens per species in the IMBE Anthophila collection. Nomenclature follows Ropars et al. (in press). European Red List status follows Nieto et al. (2014). DD: Data Deficient, EN: Endangered, LC: Low Concern, NT: Near Threatened. Megachilescupturalis was not assessed in the Red List as it is an introduced species (Le Féon et al. 2018).

Family Species European Red List status Number of specimens
Andrenidae Andrenaagilissima (Scopoli, 1770) DD 2
Andrenidae Andrenaangustior Kirby, 1802 DD 1
Andrenidae Andrenabicolor Fabricius, 1775 LC 9
Andrenidae Andrenabimaculata Kirby, 1802 DD 2
Andrenidae Andrenachrysosceles (Kirby, 1802) DD 1
Andrenidae Andrenacineraria Linnaeus, 1758 LC 2
Andrenidae Andrenacinerea Brullé, 1832 DD 1
Andrenidae Andrenacombinata (Christ, 1791) DD 14
Andrenidae Andrenadorsata (Kirby, 1802) DD 3
Andrenidae Andrenafabrella Pérez, 1903 DD 10
Andrenidae Andrenafalsifica Perkins, 1915 DD 1
Andrenidae Andrenaflavipes Panzer, 1799 LC 3
Andrenidae Andrenafulva (Müller, 1766) DD 1
Andrenidae Andrenafuscipes (Kirby, 1802) DD 2
Andrenidae Andrenahaemorrhoa (Fabricius, 1781) LC 2
Andrenidae Andrenahesperia Smith, 1853 LC 17
Andrenidae Andrenahumilis Imhoff, 1832 DD 1
Andrenidae Andrenalabiata Fabricius, 1781 DD 1
Andrenidae Andrenalagopus Latreille, 1809 LC 10
Andrenidae Andrenalimbata Eversmann, 1852 DD 1
Andrenidae Andrenamarginata Fabricius, 1776 DD 1
Andrenidae Andrenaminutula Kirby, 1802 DD 2
Andrenidae Andrenamorio Brullé, 1832 DD 1
Andrenidae Andrenanigroaenea Kirby, 1802 LC 58
Andrenidae Andrenanitida Müller, 1776 LC 1
Andrenidae Andrenaniveata Friese, 1887 DD 28
Andrenidae Andrenaovatula Kirby, 1802 NT 3
Andrenidae Andrenapandellei Pérez, 1895 LC 2
Andrenidae Andrenapilipes Fabricius, 1781 LC 1
Andrenidae Andrenapolita Smith, 1847 LC 1
Andrenidae Andrenapraecox (Scopoli, 1763) LC 1
Andrenidae Andrenapusilla Pérez, 1903 DD 2
Andrenidae Andrenarhenana Stöckhert in Schmiedeknecht, 1930 DD 10
Andrenidae Andrenarufula Schmiedeknecht, 1883 LC 1
Andrenidae Andrenasenecionis Pérez, 1895 LC 8
Andrenidae Andrenasimilis Smith, 1849 DD 19
Andrenidae Andrenasimillima Smith, 1851 LC 1
Andrenidae Andrenasimontornyella Noskiewicz, 1939 LC 1
Andrenidae Andrenaspreta Pérez, 1895 DD 2
Andrenidae Andrenasubopaca Nylander, 1848 LC 1
Andrenidae Andrenatenuistriata Pérez, 1895 LC 3
Andrenidae Andrenatruncatilabris Morawitz, 1877 DD 1
Andrenidae Andrenavaga Panzer, 1799 LC 1
Andrenidae Andrenavetula Lepeletier, 1841 LC 1
Andrenidae Andrenavillipes Pérez, 1895 LC 4
Andrenidae Andrenavulpecula Kriechbaumer, 1873 DD 33
Andrenidae Panurgusdentipes Latreille, 1811 LC 30
Apidae Amegillaalbigena (Lepeletier, 1841) LC 3
Apidae Amegillagarrula (Rossi, 1790) LC 1
Apidae Ammobatoidesscriptus (Gerstäcker, 1869) DD 1
Apidae Anthophoraaestivalis (Panzer, 1801) LC 5
Apidae Anthophoraaffinis Lepeletier, 1841 DD 11
Apidae Anthophoraatriceps Pérez, 1879 DD 1
Apidae Anthophorabimaculata (Panzer, 1798) LC 7
Apidae Anthophoracrassipes Lepeletier, 1841 DD 1
Apidae Anthophoracrinipes Smith, 1854 DD 13
Apidae Anthophoradispar Lepeletier, 1841 LC 64
Apidae Anthophorafemorata (Olivier, 1789) DD 4
Apidae Anthophoramucida Gribodo, 1873 DD 8
Apidae Anthophoraplumipes (Pallas, 1772) LC 73
Apidae Apismellifera Linnaeus, 1758 DD 90
Apidae Bombushortorum (Linnaeus, 1761) LC 2
Apidae Bombushumilis Illiger, 1806 LC 5
Apidae Bombuslucorum (Linnaeus, 1761) LC 6
Apidae Bombusmastrucatus Gerstäcker, 1869 LC 2
Apidae Bombusmesomelas Gerstäcker, 1869 LC 5
Apidae Bombusmonticola Smith, 1849 LC 4
Apidae Bombuspascuorum (Scopoli, 1763) LC 33
Apidae Bombuspratorum Linnaeus, 1758 LC 4
Apidae Bombusruderarius (Müller, 1776) LC 2
Apidae Bombussichelii Radoszkowski, 1859 LC 1
Apidae Bombussoroeensis (Fabricius, 1777) LC 2
Apidae Bombussylvarum (Linnaeus, 1761) LC 2
Apidae Bombusterrestris Linnaeus, 1758 LC 47
Apidae Ceratinachalcites Germar, 1839 LC 2
Apidae Ceratinacucurbitina Rossi, 1792 LC 13
Apidae Ceratinacyanea (Kirby, 1802) LC 12
Apidae Ceratinadallatorreana Friese, 1896 LC 1
Apidae Ceratinadentiventris Gerstäcker, 1869 LC 4
Apidae Ceratinagravidula Gerstäcker, 1869 LC 2
Apidae Ceratinanigrolabiata Friese, 1896 LC 6
Apidae Epeolusjulliani Pérez, 1884 LC 1
Apidae Euceracaspica Morawitz, 1873 LC 89
Apidae Euceraclypeata Erichson, 1835 LC 3
Apidae Eucerahispana Lepeletier, 1841 DD 8
Apidae Eucerainterrupta Baer, 1850 LC 1
Apidae Euceralongicornis (Linnaeus, 1758) LC 1
Apidae Euceranigrescens Pérez, 1880 LC 4
Apidae Euceranigrifacies Lepeletier, 1841 LC 5
Apidae Euceranigrilabris Lepeletier, 1841 DD 1
Apidae Eucerarufa (Lepeletier, 1841) DD 1
Apidae Eucerataurica Morawitz, 1871 DD 2
Apidae Euceravulpes Brullé, 1832 DD 1
Apidae Melectaalbifrons (Förster, 1771) LC 1
Apidae Melectaitalica Radoszkowski, 1876 DD 2
Apidae Nomadabeaumonti Schwarz, 1967 LC 3
Apidae Nomadabluethgeni Stoeckhert, 1943 LC 1
Apidae Nomadadiscedens Pérez, 1884 LC 9
Apidae Nomadadiscrepans Schmiedeknecht, 1882 LC 2
Apidae Nomadadistinguenda Morawitz, 1873 LC 1
Apidae Nomadafabriciana (Linnaeus, 1767) LC 1
Apidae Nomadafacilis Schwarz, 1967 LC 1
Apidae Nomadafemoralis Morawitz, 1869 LC 1
Apidae Nomadaflavoguttata (Kirby, 1802) LC 11
Apidae Nomadafulvicornis Fabricius, 1792 LC 1
Apidae Nomadafurvoides Stöckhert, 1944 DD 1
Apidae Nomadagoodeniana (Kirby, 1802) LC 1
Apidae Nomadaintegra Brullé, 1832 LC 3
Apidae Nomadamaculicornis Pérez, 1884 DD 4
Apidae Nomadamarshamella (Kirby, 1802) LC 1
Apidae Nomadamocsaryi Schmiedeknecht, 1882 DD 1
Apidae Nomadapanurgina Morawitz, 1868 LC 4
Apidae Nomadasheppardana (Kirby, 1802) LC 20
Apidae Nomadasuccincta Panzer, 1798 LC 10
Apidae Tetraloniafulvescens (Giraud, 1863) DD 1
Apidae Tetraloniamalvae (Rossi, 1790) LC 1
Apidae Tetralonianana Morawitz, 1874 DD 2
Apidae Tetraloniastrigata (Lepeletier, 1841) DD 1
Apidae Xylocopairis (Christ, 1791) LC 1
Apidae Xylocopaviolacea (Linnaeus, 1758) LC 10
Colletidae Colletesalbomaculatus (Lucas, 1848) NT 5
Colletidae Colletessimilis Schenck, 1853 LC 1
Colletidae Hylaeusangustatus (Schenck, 1859) LC 1
Colletidae Hylaeusbrachycephalus (Morawitz, 1868) DD 1
Colletidae Hylaeusbrevicornis Nylander, 1852 LC 2
Colletidae Hylaeusclypearis (Schenck, 1853) LC 15
Colletidae Hylaeuscommunis Nylander, 1852 LC 2
Colletidae Hylaeusconfusus Nylander, 1852 LC 1
Colletidae Hylaeusgibbus Saunders, 1850 LC 8
Colletidae Hylaeushyalinatus Smith, 1842 LC 5
Colletidae Hylaeusimparilis Förster, 1871 LC 3
Colletidae Hylaeusleptocephalus Morawitz, 1870 LC 1
Colletidae Hylaeuslineolatus (Schenck, 1861) LC 1
Colletidae Hylaeuspfankuchi (Alfken, 1919) LC 1
Colletidae Hylaeuspictipes Nylander, 1852 LC 9
Colletidae Hylaeuspictus (Smith, 1853) DD 12
Colletidae Hylaeuspunctatus Brullé, 1832 LC 6
Colletidae Hylaeussignatus Panzer, 1798 LC 1
Colletidae Hylaeusvariegatus Fabricius, 1798 LC 5
Halictidae Halictusbrunnescens (Eversmann, 1852) DD 1
Halictidae Halictuscrenicornis Bluthgen, 1923 DD 2
Halictidae Halictusfulvipes (Klug in Germar, 1817) LC 5
Halictidae Halictusmaculatus Smith, 1848 LC 1
Halictidae Halictuspatellatus Morawitz, 1873 LC 3
Halictidae Halictusscabiosae (Rossi, 1790) LC 11
Halictidae Halictussimplex Bluthgen, 1923 LC 12
Halictidae Lasioglossumalbocinctum (Lucas, 1849) LC 4
Halictidae Lasioglossumbimaculatum (Dours, 1872) LC 31
Halictidae Lasioglossumbluethgeni Ebmer, 1971 LC 2
Halictidae Lasioglossumglabriusculum Morawitz, 1872 LC 4
Halictidae Lasioglossumgriseolum Morawitz, 1872 LC 2
Halictidae Lasioglossumibericum (Ebmer, 1975) DD 1
Halictidae Lasioglossumlaticeps (Schenck, 1868) LC 2
Halictidae Lasioglossumlimbellum Morawitz, 1872 DD 1
Halictidae Lasioglossumlineare (Schenck, 1869) DD 1
Halictidae Lasioglossummalachurum Kirby, 1802 LC 28
Halictidae Lasioglossummediterraneum Bluthgen, 1926 LC 10
Halictidae Lasioglossummesosclerum Pérez, 1903 DD 3
Halictidae Lasioglossumminutissimum Kirby, 1802 LC 2
Halictidae Lasioglossummorio (Fabricius, 1793) LC 6
Halictidae Lasioglossumnigripes Lepeletier, 1841 LC 1
Halictidae Lasioglossumnitidulum Fabricius, 1804 LC 16
Halictidae Lasioglossumpauperatum Brullé, 1832 LC 1
Halictidae Lasioglossumpauxillum (Schenck, 1853) LC 3
Halictidae Lasioglossumpolitum Schenck, 1853 LC 1
Halictidae Lasioglossumprasinum Smith, 1848 NT 1
Halictidae Lasioglossumpygmaeum (Schenck, 1853) NT 18
Halictidae Lasioglossumsexnotatum (Kirby, 1802) NT 2
Halictidae Lasioglossumsoror (Saunders, 1901) EN 21
Halictidae Lasioglossumsubhirtum (Lepeletier, 1841) LC 3
Halictidae Lasioglossumtransitorium (Schenck, 1869) LC 96
Halictidae Lasioglossumvillosulum Kirby, 1802 LC 1
Halictidae Lasioglossumzonulum (Smith, 1848) LC 2
Halictidae Nomiapisdiversipes (Latreille, 1806) LC 2
Halictidae Seladoniaconfusa (Smith, 1853) LC 1
Halictidae Seladoniagemmea (Dours, 1872) LC 5
Halictidae Seladoniapollinosa (Sichel, 1860) LC 1
Halictidae Seladoniasmaragdula (Vachal, 1895) LC 4
Halictidae Seladoniasubaurata (Rossi, 1792) LC 2
Halictidae Seladoniavestita (Lepeletier, 1841) LC 2
Halictidae Sphecodesephippius (Linnaeus, 1767) LC 1
Halictidae Sphecodespellucidus Smith, 1845 LC 1
Halictidae Sphecodesruficrus (Erichson, 1835) LC 1
Megachilidae Anthidiellumstrigatum Panzer, 1805 LC 9
Megachilidae Anthidiumdiadema Latreille, 1809 DD 1
Megachilidae Anthidiumflorentinum Fabricius, 1775 LC 12
Megachilidae Anthidiumloti Perris, 1852 DD 4
Megachilidae Anthidiummanicatum (Linnaeus, 1758) LC 14
Megachilidae Anthidiumoblongatum Immigur, 1806 LC 6
Megachilidae Chelostomadistinctum Stoeckhert, 1929 LC 2
Megachilidae Chelostomaflorisomne Linnaeus, 1758 LC 4
Megachilidae Chelostomarapunculi (Lepeletier, 1841) LC 1
Megachilidae Heriadescrenulata Nylander, 1856 LC 14
Megachilidae Heriadestruncorum Linnaeus, 1758 LC 16
Megachilidae Hoplitisacuticornis (Dufour & Perris, 1840) LC 1
Megachilidae Hoplitisadunca Panzer, 1798 LC 32
Megachilidae Hoplitisanthocopoides Schenck, 1853 LC 6
Megachilidae Hoplitisbenoisti Alfken, 1935 LC 15
Megachilidae Hoplitisbisulca (Gerstäcker, 1869) LC 1
Megachilidae Hoplitisbrachypogon (Pérez, 1880) LC 1
Megachilidae Hoplitiscristatula (Van der Zanden, 1990) LC 11
Megachilidae Hoplitisleucomelana (Kirby, 1802) LC 1
Megachilidae Hoplitismocsaryi (Friese, 1895) LC 1
Megachilidae Hoplitisperezi (Ferton, 1895) LC 1
Megachilidae Megachileapicalis (Spinola, 1808) LC 3
Megachilidae Megachileargentata Alfken, 1924 LC 6
Megachilidae Megachilecentuncularis Linnaeus, 1758 LC 6
Megachilidae Megachileericetorum Lepeletier, 1841 LC 3
Megachilidae Megachileflabellipes Perez, 1895 DD 1
Megachilidae Megachilegiraudi Gerstäcker, 1869 DD 1
Megachilidae Megachileleachella Curtis, 1828 LC 1
Megachilidae Megachilemaritima (Kirby, 1802) DD 1
Megachilidae Megachilemelanopyga Costa, 1863 LC 6
Megachilidae Megachileopacifrons Pérez, 1897 DD 1
Megachilidae Megachileparietina (Geoffroy in Fourcroy, 1785) LC 12
Megachilidae Megachilepusilla Pérez, 1884 DD 2
Megachilidae Megachilepyrenaica Lepeletier, 1841 DD 4
Megachilidae Megachilerotundata (Fabricius, 1793) DD 4
Megachilidae Megachilesculpturalis Smith, 1853 6
Megachilidae Megachilewillughbiella Kirby, 1802 LC 3
Megachilidae Osmiaaurulenta Panzer, 1799 LC 23
Megachilidae Osmiabicornis Linnaeus, 1758 LC 34
Megachilidae Osmiabrevicornis Fabricius, 1798 LC 5
Megachilidae Osmiacaerulescens (Linnaeus, 1758) LC 6
Megachilidae Osmiadimidiata Morawitz, 1870 LC 1
Megachilidae Osmialatreillei (Spinola, 1806) LC 10
Megachilidae Osmialeaiana (Kirby, 1802) LC 4
Megachilidae Osmialigurica Morawitz, 1868 LC 3
Megachilidae Osmiamelanogaster Spinola, 1807 LC 24
Megachilidae Osmiaminutula (Pérez, 1896) DD 1
Megachilidae Osmianasoproducta Ferton, 1910 DD 8
Megachilidae Osmianiveata (Fabricius, 1804) LC 47
Megachilidae Osmiarufohirta Latreille, 1811 LC 20
Megachilidae Osmiascutellaris Morawitz, 1868 LC 10
Megachilidae Osmiasignata Erichson, 1835 LC 3
Megachilidae Osmiasubmicans Morawitz, 1870 LC 10
Megachilidae Osmiatricornis Latreille, 1811 LC 56
Megachilidae Osmiaversicolor Latreille, 1811 LC 9
Megachilidae Protosmiaminutula (Pérez, 1896) DD 3
Megachilidae Rhodanthidiuminfuscatum (Erichson in Waltl, 1835) DD 5
Megachilidae Rhodanthidiumseptemdentatum Latreille, 1809 DD 171
Megachilidae Rhodanthidiumsticticum (Fabricius, 1787) DD 162
Megachilidae Stelisbreviuscula Nylander, 1848 LC 1
Megachilidae Stelissignata (Latreille, 1809) LC 2
Melittidae Dasypodaargentata Panzer, 1809 NT 1
Melittidae Dasypodahirtipes (Fabricius, 1793) LC 1
Total 2181

Temporal coverage

Data range: 2003-3-20 – 2023-9-01.

Notes

The specimens were captured from 2003 to 2023. Twenty specimens were collected at an unknown date. Most of the specimens were captured in April or May (the time of the year in which bees are the most abundant in this region), totalling 60% of the dated captures (Fig. 2).

Figure 2.

Figure 2.

Within year distribution of bees in the IMBE collection.

Collection data

Collection name

IMBE Apoidea collection (Hymenoptera)

Collection identifier

IMBE-H

Specimen preservation method

Dried and pinned specimens

Curatorial unit

IMBE, contact: Gabriel Nève (email: gabriel.neve@imbe.fr)

Usage licence

Usage licence

Creative Commons Public Domain Waiver (CC-Zero)

IP rights notes

This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 Licence. All work derived from the present study should cite it appropriately.

Data resources

Data package title

IMBE Bee collection (Hymenoptera)

Resource link

https://doi.org/10.5281/zenodo.13936315

Alternative identifiers

https://doi.org/10.5281/zenodo.14356371

Number of data sets

1

Data set 1.

Data set name

IMBE Apoidea collection (Hymenoptera)

Data format

CSV (tab delimited values)

Character set

IMBE_beeColl_v02.csv

Data format version

Darwin core, so that it may be transferred later into GBIF.

Description

The dataset includes data on 2181 specimens of Apoidea collected or received by researchers at IMBE, in GBIF compatible format.

Data set 1.
Column label Column description
occurrenceID Unique specimen identifier : H (for Hymenoptera) and four digits.
catalogNumber Insitution code (i.e. IMBE) followed by individual occurenceID. Each specimen bears a label with this identifier.
basisOfRecord The specific nature of the data record (i.e. PreservedSpecimen).
eventDate Event date in the format YYYY-MM-DD if the capture date is known to the date or YYYY if only the year is known. If time of capture is known, then format is YYYYMM-DDTHH:MM, with HH:MM the local time.
year Year of capture.
month Month of capture if known,
day Day of capture if known,
verbatimEventDate Date of capture, as mentioned on the label,
scientificName Lowest taxonomic rank possible, usually the species name, sometimes the subspecies, with author and year.
identificationQualifier In case the identification could be given only to a species group, 'cf.' was input.
identificationRemarks Any comment on the identification of the specimen, with list of possible species.
kingdom Kingdom name (i.e. Animalia).
phylum Phylum name (i.e. Arthropoda).
class Class name (i.e. Insecta).
order Order name (i.e. Hymenoptera).
family Family name.
genus Genus name.
specificEpithet Species epithet of the scientificName.
infraspecificEpithet Subspecific epithet, if any is relevant.
scientificNameAuthorship Name of the scientist who described the species and year of description publication.
sex Male (M) or female (F).
caste Queen or worker if known.
taxonRank Taxonomic rank of the most specific name in the scientificName.
identifiedBy Name of the entomologist who identified the specimen.
dateIdentified Year of identification.
identificationVerificationStatus Whether (coded 1) or not (coded 0) the identification is reliable to species level.
previousIdentifications Species name originally given on the specimen label.
country Country of capture.
countryCode Two letter country code of the specimen capture location.
stateProvince French departmental administrative division. In the case of non-French data, any relevant country administrative subdivision.
locality Location of capture, usually the municipality.
verbatimLocality Any geographical indication on the label.
occurrenceRemarks Any ecological data or comment on the label, including method of capture if known.
decimalLatitude Geographic latitude (in decimal degrees) of the capture location.
decimalLongitude Geographic longitude (in decimal degrees) of the capture location.
geodeticDatum System and set of reference points upon which the geographic coordinates are based (i.e. WGS 84)
coordinateUncertaintyInMeters Uncertainty in coordinates, in meters
minimumElevationInMeters Lower limit of the range of altitudes indicated on the label or in the associated reference
maximumElevationInMeters Higher limit of the range of altitude indicated on the label or in the associated reference.
georeferencedBy Identity of the person who added the latitude and longitude data, i.e. either the original recorder or Nève, Gabriel.
georeferenceProtocol How the georeference was computed, i.e. either from georeference web sites or from label data (verbatimLocality).
georeferenceSources Georeference code was inferred from geoportail.gouv.fr, French ING maps or GoogleEarthPro.
georeferencedDate Georeference work was either performed at the time of recording or in 2024.
recordedBy Name of collector (i.e. legit information).
otherCatalogNumbers Any other code the specimen may have, usually according to the study protocol during which it was captured.
institutionCode Institution where the specimen is held (i.e. IMBE, Marseille).
organismQuantity Number of individuals bearing the same label (usually 1).
organismQuantityType Individuals.
language The dataset is mainly written in French, apart from column headings, which are in English.
associatedReferences Any reference citing the relevant specimen.

Additional information

General discussion

At a time of global pollinator decline, this study highlights once again the French Mediterranean Region as one of the main hotspots for wild bee species (Orr et al. 2021, Reverté et al. 2023). The collection holds about a quarter of the 980 species that thrive in mainland France (Ropars et al. in press) and the data provided here will contribute to improve knowledge about French bee species.

The collected specimens listed here, beyond enhancing our understanding of wild bees as previously mentioned, are also used as a reference collection and for the training of entomologists to ensure the accurate identification of future specimens. Moreover, such a collection acts as a 'memory of nature's diversity,' an exceptional resource available to scientists worldwide. Preserving these specimens provides tangible evidence of biodiversity over time, offering a unique opportunity to monitor its evolution in the long term — a critical aspect in the face of the current widespread biodiversity decline and the current major global changes.

One species in the IMBE collection is classified as 'endangered' by the IUCN at the European level (Nieto et al. 2014). This species, Lasioglossumsoror, was recorded at nine different localities in the Calanques National Park in 2018. Our data suggest that this species is locally widespread and may have been overlooked in other studies as all but two of the 19 specimens in the IMBE collection were collected in coloured pan traps.

Six species in the IMBE collection are classified as “Near Threatened” by the IUCN at the European level (Nieto et al. 2014): Andrenaovatula, Colletesalbomaculatus, Lasioglossumprasinum, Lasioglossumpygmaeum, Lasioglossumsexnotatum and Dasypodaargentata. In addition, D.argentata is also generally recognised as a rare species. The identification of these species is crucial for conservation efforts, as it guides habitat management and protection initiatives. Understanding the status of near-threatened species helps preserve biodiversity and maintain essential ecosystem services provided by pollinators, while raising public awareness and support for bee conservation initiatives. Finally, a total of 68 species recorded in the IMBE collection are currently classified as 'Data Deficient'. This status underscores significant gaps in our understanding of these species' biology, distribution and conservation needs. It highlights the critical importance of maintaining and enhancing monitoring efforts to gather the data necessary for informed conservation decisions. Ensuring the availability of updated and comprehensive information on these species is essential to address potential threats and support their long-term survival.

This study is part of current national effort to document the distribution of pollinators in France. Many initiatives, for example, French National Pollinator Plan, Regional Initiatives ("Plan Régional d'Action") and the French Checklist (Ropars et al. in press) are currently assessing the status of wild bees species in France and this topical issue is part of the research programme. By contributing valuable data to the forthcoming French Red List of bees, we aim to foster a greater awareness of the ecological significance of these species. As the IMBE continues its dedicated research, we anticipate that future studies will further enrich our knowledge and help shape effective conservation strategies, ensuring that these vital pollinators thrive for generations to come.

Abbreviation used throughout

IMBE: Institut Méditerranen de Biodiversité et d’Ecologie marine et continentale (Marseille, France)

Supplementary Material

Supplementary material 1

Numbers of specimens per French Department

Gabriel Nève

Data type

geographic coverage of bee data in France

Brief description

Numbers of bee specimens per French Department in the IMBE collection (Marseille, France). Encoding is UTF-8.

Two specimens from Italy (Sardinia) and one from Spain (Catalonia) are exluded.

File: oo_1201694.csv

Acknowledgements

Erwin Scheuchl, Benoît Martha, Emile Gigandet, Gilles Mahé, Yvan Brugerolles, Gérard Le Goff and Nicolas J. Vereecken identified some of the specimens. Jean-Yves Meunier set up the boxes and the label layout and started the data input of the collection. Robert Mesibov gave us valuable advice on the GBIF format.

This scientific work is part of the natural heritage inventory (inpn.mnhn.fr). In 2023, it received support from PatriNat (OFB-CNRS-MNHN).

Funding Statement

This scientific work is part of the natural heritage inventory (inpn.mnhn.fr). It received support from PatriNat (OFB-CNRS-MNHN).

Author contributions

Study design: GN and BG, data input: LS and CL, capture of specimens and labelling: CCJ, LR, LS, FF, MZ, BG, identification of specimens: MA, CB, ED, BG and VL; data analysis and formatting: GN, writing up: CL, LS, BG, CCJ, LS, MZ and GN, supervision: GN, collection management: GN. All authors commented and agreed on the final manuscript. The first two authors contributed equally to this work.

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Associated Data

This section collects any data citations, data availability statements, or supplementary materials included in this article.

Supplementary Materials

Supplementary material 1

Numbers of specimens per French Department

Gabriel Nève

Data type

geographic coverage of bee data in France

Brief description

Numbers of bee specimens per French Department in the IMBE collection (Marseille, France). Encoding is UTF-8.

Two specimens from Italy (Sardinia) and one from Spain (Catalonia) are exluded.

File: oo_1201694.csv


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