← All bee groups
Masked Bees (Hylaeus)
90 species in Europe, in the family Colletidae. 5 of them are listed as threatened on the European Red List.
Family Colletidae90 species
90
Species in Europe
5
Threatened (CR, EN or VU)
7
Too little data to assess (DD)
5
Crops on which species were recorded
How the species are doing
Distribution of the species over the categories of the European Red List of Bees (2026). Not assessed means: no European assessment in the source, often because the species only occurs at the edge of Europe.
- EN Endangered: 5
- NT Near threatened: 4
- LC Least concern: 64
- DD Data deficient: 7
- NA Not applicable (not native or vagrant): 5
- - Not assessed: 5
Scale, from severe to not threatened: CR critically endangered, EN endangered, VU vulnerable, NT near threatened, LC least concern. DD: data deficient.
When the visitors fly
Number of species flying per month, according to the flight calendar from open records in Europe. A species counts in every month it flies.
3Jan
3Feb
6Mar
10Apr
32May
49Jun
47Jul
40Aug
2Sep
Oct
Nov
Dec
Crops these bees visit
Crops and other plants with an EPPO code on which species from this group were recorded.
| Crop | Depends on pollinators | Species from this group | Records |
|---|---|---|---|
| Red raspberryRubus idaeus | great (40-89%) | 2 | 6 |
| Chinese dateZiziphus jujuba | modest (10-39%) | 1 | 2 |
| Common corianderCoriandrum sativum | great (40-89%) | 1 | 2 |
| AzaroleCrataegus azarolus | little (1-9%) | 1 | 2 |
| FennelFoeniculum vulgare | great (40-89%) | 1 | 2 |
All species in Europe
| Species | Red List Europe | Flies | Only in Europe |
|---|---|---|---|
| Hylaeus absolutus | DD Data deficient | May - Jun | |
| Hylaeus adriaticus | LC Least concern | no data | yes |
| Hylaeus alpinus | LC Least concern | Jun - Aug | yes |
| Hylaeus angustatus | LC Least concern | May - Aug | |
| Hylaeus annularis | LC Least concern | Mar - Sep | |
| Hylaeus annulatus | LC Least concern | Jun - Aug | |
| Hylaeus ater | LC Least concern | no data | yes |
| Hylaeus aurifer | - Not assessed | no data | |
| Hylaeus azorae | DD Data deficient | no data | yes |
| Hylaeus biarmicus | NA Not applicable (not native or vagrant) | no data | |
| Hylaeus bifasciatus | NT Near threatened | no data | |
| Hylaeus brachycephalus | LC Least concern | May - Jul | |
| Hylaeus brevicornis | LC Least concern | May - Aug | |
| Hylaeus canariensis | LC Least concern | May | yes |
| Hylaeus cardioscapus | LC Least concern | May - Aug | |
| Hylaeus clypearis | LC Least concern | Jan - Aug | |
| Hylaeus communis | LC Least concern | May - Aug | |
| Hylaeus conformis | NA Not applicable (not native or vagrant) | no data | |
| Hylaeus confusus | LC Least concern | May - Aug | |
| Hylaeus convergens | LC Least concern | no data | yes |
| Hylaeus coriaceus | LC Least concern | no data | |
| Hylaeus cornutus | LC Least concern | May - Aug | |
| Hylaeus crassanus | NT Near threatened | Jun - Aug | |
| Hylaeus cypricola | LC Least concern | no data | |
| Hylaeus deceptorius | LC Least concern | no data | yes |
| Hylaeus difformis | LC Least concern | Jun - Aug | |
| Hylaeus dilatatus | LC Least concern | Jun - Aug | |
| Hylaeus duckei | LC Least concern | no data | |
| Hylaeus euryscapus | LC Least concern | Apr - Aug | |
| Hylaeus friesei | NT Near threatened | no data | yes |
| Hylaeus garrulus | LC Least concern | no data | yes |
| Hylaeus gazagnairei | NA Not applicable (not native or vagrant) | no data | |
| Hylaeus gibbus | LC Least concern | May - Aug | |
| Hylaeus glacialis | EN Endangered | Jun - Aug | |
| Hylaeus globulus | - Not assessed | Jun - Sep | |
| Hylaeus gracilicornis | LC Least concern | Jun - Aug | |
| Hylaeus gredleri | LC Least concern | Jun - Aug | |
| Hylaeus hellenicus | EN Endangered | no data | yes |
| Hylaeus hohmanni | LC Least concern | no data | yes |
| Hyaline Masked BeeHylaeus hyalinatus | LC Least concern | May - Aug | yes |
| Hylaeus hyperpunctatus | LC Least concern | no data | yes |
| Hylaeus hyrcanius | NA Not applicable (not native or vagrant) | no data | |
| Hylaeus ibericus | EN Endangered | no data | yes |
| Hylaeus imparilis | LC Least concern | Apr - Aug | |
| Hylaeus incongruus | LC Least concern | May - Aug | |
| Hylaeus intermedius | LC Least concern | May - Jul | |
| Hylaeus kahri | LC Least concern | Jun - Aug | |
| Hylaeus koenigsmanni | EN Endangered | no data | yes |
| Slender-faced Masked BeeHylaeus leptocephalus | LC Least concern | May - Aug | |
| Hylaeus lineolatus | LC Least concern | May - Aug | |
| Hylaeus longimacula | LC Least concern | May - Jun | |
| Hylaeus maderensis | DD Data deficient | no data | yes |
| Hylaeus mariannae | EN Endangered | no data | yes |
| Hylaeus meridionalis | DD Data deficient | May - Aug | |
| Hylaeus milossa | - Not assessed | no data | |
| Hylaeus moricei | - Not assessed | Apr - Aug | |
| Hylaeus nigrifacies | LC Least concern | no data | |
| Hylaeus nigrita | LC Least concern | Jun - Aug | |
| Hylaeus nivaliformis | LC Least concern | no data | yes |
| Hylaeus nivalis | LC Least concern | Jun - Aug | yes |
| Hylaeus pallidicornis | DD Data deficient | no data | |
| Hylaeus paulus | LC Least concern | Apr - Aug | |
| Hylaeus pectoralis | LC Least concern | Jan - Jul | |
| Hylaeus penalaris | LC Least concern | no data | yes |
| Hylaeus pfankuchi | LC Least concern | May - Aug | |
| Hylaeus pictipes | LC Least concern | May - Aug | |
| Hylaeus pictus | LC Least concern | Jan - Jul | |
| Hylaeus pilosulus | LC Least concern | May - Jul | |
| Punctate Masked BeeHylaeus punctatus | LC Least concern | Jun - Aug | |
| Hylaeus punctulatissimus | LC Least concern | Jun - Jul | |
| Hylaeus punctus | LC Least concern | no data | |
| Hylaeus purpurissatus | LC Least concern | no data | |
| Hylaeus pyrenaicus | NT Near threatened | no data | yes |
| Hylaeus rinki | LC Least concern | Jun - Aug | |
| Hylaeus rubicola | LC Least concern | no data | |
| Hylaeus rugicollis | DD Data deficient | no data | |
| Hylaeus scutellaris | NA Not applicable (not native or vagrant) | no data | |
| Hylaeus scutellatus | LC Least concern | no data | |
| Hylaeus sidensis | DD Data deficient | no data | |
| Hylaeus signatus | LC Least concern | May - Aug | |
| Hylaeus sinuatus | LC Least concern | Jun - Aug | |
| Hylaeus soror | LC Least concern | no data | |
| Hylaeus styriacus | LC Least concern | Jun - Aug | |
| Hylaeus sulphuripes | LC Least concern | Mar - Jul | |
| Hylaeus taeniolatus | LC Least concern | Mar - Aug | |
| Hylaeus teruela | - Not assessed | no data | |
| Hylaeus trifidus | LC Least concern | no data | |
| Hylaeus trinotatus | LC Least concern | no data | |
| Hylaeus tyrolensis | LC Least concern | May - Aug | |
| Hylaeus variegatus | LC Least concern | Jun - Aug |
Sources
This page only uses sources with an open licence. The bee database itself contains more records, from sources for which permission is still pending.
- Vliegperiode per maand, afgeleid uit BeeBDC-waarnemingen met open licentie (CC0 / CC BY)
FairGrow (afgeleid) · version 1.3.4 · licence CC BY 4.0 (afgeleid uit CC0 / CC BY)
Afgeleid door FairGrow uit: Dorey, J. B. et al. (2023). A globally synthesised and flagged bee occurrence dataset and cleaning workflow. Scientific Data 10: 747. https://doi.org/10.1038/s41597-023-02626-w. Cleaned database v1.3.4 (2024-02-15), Figshare. Kleinste maandvenster met 90% van de waarnemingen, minimaal 20 records.
doi.org/10.1038/s41597-023-02626-w - Bij-plantinteracties: EuPPollNet via GloBI (CC BY 4.0)
GloBI / Big Bee · version 7.0 · licence CC BY 4.0
Lanuza, J. B. et al. (2025). EuPPollNet: a European database of plant-pollinator networks. Zenodo 10.5281/zenodo.15183272 (CC BY 4.0), via Seltmann, K. et al. / Big Bee project and GloBI (2025). Global Bee Interaction Data v7.0. Zenodo. https://doi.org/10.5281/zenodo.17957582. Underlying data: Global Biotic Interactions (Poelen et al. 2014).
doi.org/10.5281/zenodo.17957582 - Bij-plantinteracties: DoPI via GloBI (CC BY 4.0)
GloBI / Big Bee · version 7.0 · licence CC BY 4.0
Balfour, N. J. et al. Database of Pollinator Interactions (DoPI). Zenodo 10.5281/zenodo.15224385 (CC BY 4.0), via Seltmann, K. et al. / Big Bee project and GloBI (2025). Global Bee Interaction Data v7.0. Zenodo. https://doi.org/10.5281/zenodo.17957582. Underlying data: Global Biotic Interactions (Poelen et al. 2014).
doi.org/10.5281/zenodo.17957582 - Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila), tab-delimited version
Zenodo / Discover Life · version v57.0 · licence CC-BY-4.0
Ascher, J. S. and J. Pickering. 2024. Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila). http://www.discoverlife.org/mp/20q?guide=Apoidea_species Draft-57, 27 February, 2024
doi.org/10.5281/zenodo.19954082 - BeeBDC beesChecklist: country checklist of the world's bees (Discover Life), 2026-01-12
Flinders University / Figshare · version 2026-01-12 · licence CC BY 4.0
Dorey, J. B. et al. (2023). A globally synthesised and flagged bee occurrence dataset and cleaning workflow. Scientific Data 10: 747. https://doi.org/10.1038/s41597-023-02626-w; beesChecklist 2026-01-12 (Figshare, CC BY 4.0), based on the Discover Life country checklist (Ascher & Pickering).
doi.org/10.1038/s41597-023-02626-w - European Red List of Bees (2026), Appendix 1: Red List status at Pan-Europe and EU27 levels
Publications Office of the European Union / IUCN · version 2026 · licence CC BY 4.0
Michez, D. et al. (2026). European Red List of Bees. Luxembourg: Publications Office of the European Union. https://doi.org/10.2779/521877 (CC BY 4.0). Appendix 1.
doi.org/10.2779/521877 - Wikidata: taxon common names (P1843) and labels of bee species
Wikimedia Foundation / Wikidata · version SPARQL 2026-10-18 · licence CC0 1.0
Wikidata contributors. Wikidata, taxon common names (P1843) and labels, retrieved 2026-10-18. https://www.wikidata.org (CC0).
www.wikidata.org
Other groups in the family Colletidae
Which bees fly around your field?
In the FairGrow bee database you see the species in the cells around your own fields and apiaries, with flight weather and forage landscape.
Keep exploring
Related guides
Bees and cropsFor each crop: how much of the yield depends on pollinators, which bee species visit theRead the guide →Pest and disease risk from the weather, per fieldFairGrow calculates the risk of crop diseases and pests from the weather for each field, usingRead the guide →Crop protection: may this product be used here, on this crop, against this pest?A product authorised in the Netherlands is not thereby authorised in Belgium or Germany. Not evenRead the guide →