Osmia bicolor, the two-coloured mason-bee, is a Palearctic species of bee in the genus Osmia. It is outstanding amongst other megachilid bees in that it nests in empty snail shells.
No narrative description available for this taxon yet.
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Osmia bicolor has left across the world's sequence archives.
At a glance
DNA specimens35
BINs2
Marker genes1
eDNA detections33
Countries7
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P654 bp consensus30 specimens
ACGT
▸ drag or hover over the strip to read any position — letter and how much it varies
Violet ticks below the strip = positions where individuals differ; flat = the species' unchanging signature. 95% of positions are identical in every specimen.
Where individuals differ — all 30 variable positions, in barcode order
Each circle is a barcode variant; bigger = more specimens, colour = region. Lines join the most similar variants and the tick marks count the mutations between them — a tight cluster is one “dialect”, a long line a more divergent lineage. Click a circle to list its actual specimens.
Diversity (π)1.6%
Haplotypes11
BINs2
Most divergent pair0.61%
Europe
Closest relatives by DNA barcode
The species whose COI barcode is most similar to this one — a quick “who is this most like”. The percentage is how much the barcode differs; it approximates, but is not, the full evolutionary tree.
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★COI-5P
animal barcode
08Occurrence & distribution
Record type11 315 records
Wild obs. + sensor7 178
Museum / vouchered4 097
Other40
Origin
Native1 481
Range
Area of Occupancy AOO12 964 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy70% within 1 km
≤100 m 3 649≤1 km 878≤10 km 1 905>10 km 70
6 502 georeferenced · 676 without coordinates
Open the mapobservation + sensor7 178
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy34% within 1 km
≤100 m 405≤1 km 808≤10 km 2 297>10 km 55
3 565 georeferenced · 532 without coordinates
Open the institutions mapphysical evidence4 097
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions26 of 59 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Philadelphia, US
427
Zürich, CH
359
Provincia di Livornolocation not on record
313
South Kensington, GB
309
SLU Artdatabankenlocation not on record
253
Bern, CH
197
Musee d'Histoire Naturallelocation not on record
163
Naturéum — Muséum cantonal des sciences naturelles, Lausanne, Département Zoologielocation not on record
147
ULglocation not on record
130
Wuzhou, CN
86
Beltsville, US
78
Mons, BE
76
Museum zu Allerheiligen Schaffhausenlocation not on record
63
NHMOlocation not on record
60
Paro, BT
52
NMOKlocation not on record
47
Geneva, CH
36
Trondheim, NO
36
Brussels, BE
33
Tallinn, EE
32
BioFokuslocation not on record
30
Frauenfeld, CH
24
Dhaka, BD
21
KZMlocation not on record
16
PRAZlocation not on record
14
Forschungsinstitut für biologischen Landbau Frick | Research Institute of Organic Agriculture Fricklocation not on record
12
Cambridge, US
11
Sion, CH
10
neflocation not on record
10
ZSMlocation not on record
10
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
10
Natuurpuntlocation not on record
9
Tartu, EE
9
Natural History Museum Rotterdamlocation not on record
8
Helsinki, FI
8
PRUNlocation not on record
8
ARTlocation not on record
7
NCMGlocation not on record
6
Fribourg, CH
6
Tilburg, NL
5
Universität Zürich, Naturhistorisches Museumlocation not on record
4
4
Archäologie und Museum Baselland - Museum.BLlocation not on record
4
Naturmuseum Solothurnlocation not on record
3
Bavarian State Collection of Zoologylocation not on record
3
CBDClocation not on record
3
MNHWlocation not on record
3
Winterthur, CH
2
Naturkundliche Sammlung Urilocation not on record
2
Natural History Museum, Londonlocation not on record
2
AGClocation not on record
2
US
1
Adam Mickiewicz University in Poznańlocation not on record
1
Ghent, BE
1
Gothenburg, SE
1
Ugentlocation not on record
1
Tromsø, NO
1
Mykotektet, National Veterinary Institutelocation not on record
1
University of Oslo, Natural History Museumlocation not on record
1
59 institutions · 3 171 of 4 097 vouchered records shown · 926 without an institution code
09Environmental DNA33 detections
Where the DNA of Osmia bicolor was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found33
Studies independent surveys2
Countries7
Verifiable raw sequence linked2
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 33 detections have coordinates
Open the map7 countries0
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median9.20 °C 5.30–17.0
Seasonal swing summer↔winter18.1 °C
Max temp (day)13.5 °C 8.90–21.2
Min temp (night)4.20 °C 1.20–12.1
Precipitation68.4 mm/mo 48.3–125
Air humidity59.3 % 57.4–62.2
Moisture balance-29.0 mm/mo -57.4–7.00
Vapour deficit474 Pa 361–804
Wind speed3.40 m/s 3.20–5.20
Cloud cover40.4 % 36.7–47.3
CHELSA 1981–2010, ~9 km grid, at location & month of 33 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.