The hoverflies of the Dauzet collection at the Musée des Confluences in Lyon (Diptera, Syrphidae)

The hoverfly Dauzet includes 1725 hoverfly records from 221 species. 1302 of these are backed by specimens in the Musée des Confluences, Lyon, and 423 by cards handwritten by Maurice Dauzet. [Version 1 did not include the data from cards]

These specimens were colleted by Maurice Dauzet (1927-2021) from 1980 to 2017, mainly in Loire and Haute-Loire departments, France.

Data from these specimens are presented here, with date of capture, and location details.

The collection is hosted at the Musée des Confluences, Lyon (contact : Harold Labrique Harold.Labrique[at]museedesconfluences.fr). 

Data in Darwin core: CSV format, UTF-8, compatibe with GBIF system. 

Beware of apostrophes (') in some locality names or comments, as these may be misinterpreted by R statistical system. 

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, including the Musée des Confluences (Lyon) where the material is held.

Some tips on how to open this file are given in the associated Read_me_EN_Syrphidae_Dauzet.pdf file.

French users : Quelques indications sur comment ouvrir le fichier de données dans un tableur sont données dans le fichier associé Lisez_moi_FR_Syrphidae_Dauzet.pdf .

Full details are given in :

Nève, G., Claude, J. & Labrique, H. 2025. The hoverflies of the Dauzet collection at the Musée des Confluences in Lyon (Diptera, Syrphidae). Biodiversity Data Journal [in press]

Variables are : 

occurrenceID: Individual identification code. Each specimen bears a label with this code.
materialEntityID: the record was written on a card by Maurice Dauzet.
basisOfRecord: The specific nature of the data record (i.e. PreservedSpecimen for the entomolgical collection or MaterialEntity for handwritten cards)
eventDate Event date in the format YYYY-MM-DD if the capture date is known to the date,
                  or YYYY-MM if only the month and year are known, or YYYY if only the year is
                  known. If the specimen was captured during a time lapse in which the first and
                  last days are known, then these two dates are given deparated by a slash bar (/),
                  e.g. 2015-06-02/2015-07-15.
year: Year of capture.
month: Month of capture.
day: day of capture
verbatimEventDate: Date of capture, as mentioned on the label.
kingdom: Kingdom name (i.e. Animalia).
phylum: Phylum name (i.e. Arthropoda).
class: Class name (i.e. Insecta).
order: Class name (i.e. Insecta).
family: Family name.
previousIdentifications: Species name originally given on the specimen label by Maurice Dauzet.
genus: Genus name.
specificEpithet: Species epithet of the scientificName.
scientificNameAuthorship: Name of the scientist who first described the species and year of publication of the description.
scientificName: Lowest taxonomic rank possible given to the specimen, usually the species name, sometimes the genus, with author and year.
sex: Male (M) or female (F).
taxonRank: species or genus.
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.
IdentifiedBy: Name of the entomologist who identified the specimen.
dateIdentified: year of most recent identification.
identificationVerificationStatus: Whether (coded 1) or not (coded 0) the identification is reliable to species level
country: Country of capture.
countryCode: Two letter country code of the specimen capture location.
stateProvince: French departmental administrative division.
locality: Location of capture, usually the municipality.
verbatimLocality: Any geographical indication, as it is written on the label.
decimalLatitude: Geographic latitude (in decimal degrees) of the capture location.
decimalLongitude: Geographic longitude (in decimal degrees) of the capture location.
coordinateUncertaintyInMeters: Uncertainty in coordinates, in meters.
recordedBy: Name of collector (i.e. legit information ; i.e. usually Dauzet, Maurice)
occurrenceRemarks: Any ecological data or comment on the label.
minimumElevationInMeters: Lower limit of the range of altitudes indicated on the label or in the associated reference
maximumElevationInMeters: Higher limit of the range of altitudes indicated on the label or in the associated reference
geodeticDatum: System and set of reference points upon which the geographic coordinates are based (i.e. WGS84)
georeferencedBy: Identity of the person who added the latitude and longitude data, i.e. Nève, Gabriel
georeferenceProtocol: How the georeference was computed, i.e. from label data (verbatimLocality).
georeferenceSources: Georeference code was inferred from geoportail.gouv.fr.
georeferencedDate: Georeference work was performed in 2024.
institutionCode: Institution where the specimen is held (i.e. MHNL : Muséum d'Histoire Naturelle de Lyon, now hosted within the Musée des Confluences, Lyon).
CollectionCode: Collection code within the Museum, i.e. M. Dauzet
catalogNumber: Combination of box number and individual specimen number.
organismQuantity: Number of individuals bearing the same label (i.e. 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