The dotted miner bee (Andrena cressonii) is a species of miner bee in the family Andrenidae. Another common name for this species is Cresson's andrena. It is found in North America.
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 Andrena cressonii has left across the world's sequence archives.
At a glance
DNA specimens33
BINs3
Marker genes1
eDNA detections22
Countries2
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P658 bp consensus32 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. 97% of positions are identical in every specimen.
Where individuals differ — all 17 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)1.2%
Haplotypes8
BINs3
Most divergent pair2.9%
N.America
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 type4 630 records
Wild obs. + sensor124
Museum / vouchered4 506
Range
Area of Occupancy AOO3 756 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 accuracy89% within 1 km
≤100 m 63≤1 km 33≤10 km 4>10 km 8
108 georeferenced · 16 without coordinates
Open the mapobservation + sensor124
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 accuracy13% within 1 km
≤100 m 35≤1 km 147≤10 km 1 253>10 km 20
1 455 georeferenced · 3 051 without coordinates
Open the institutions mapphysical evidence4 506
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 institutions22 of 41 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
US
2 067
Champaign, US
1 225
University Park, US
191
North Carolina State University Insect Museumlocation not on record
154
Cambridge, US
116
UNHClocation not on record
83
White River Junction, US
77
WIlocation not on record
71
48
LULlocation not on record
48
Cornell University Insect Collectionlocation not on record
41
Beltsville, US
34
Zadock Thompson Natural History Collection, University of Vermontlocation not on record
29
FWSlocation not on record
28
New Haven, US
25
OSUClocation not on record
21
Cleveland Museum of Natural History, OH (CLEV)location not on record
19
Weber State University, Bird and Mammal Collectionlocation not on record
13
Toronto, CA
12
Chicago, US
11
Wuzhou, CN
11
Universidad Católica de Manizaleslocation not on record
9
University of Western Ontariolocation not on record
8
Toronto, CA
6
St. Paul, US
4
Mississippi State, US
4
Vancouver, CA
4
New Haven, US
3
Vermont Center for Ecostudieslocation not on record
3
Decorah, US
3
San Diego, US
3
Florida State Collection of Arthropods, The Museum of Entomologylocation not on record
2
College Station, US
2
Blacksburg, US
2
Philadelphia, US
2
Awka, NG
1
University of Guelph, Centre for Biodiversity Genomicslocation not on record
1
WSUClocation not on record
1
University of Alabamalocation not on record
1
Royal Saskatchewan Museumlocation not on record
1
Colorado State Universitylocation not on record
1
41 institutions · 4 385 of 4 506 vouchered records shown · 121 without an institution code
09Environmental DNA22 detections
Where the DNA of Andrena cressonii 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 found22
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 22 detections have coordinates
Open the map2 countries0
GrasslandMixed habitatForest
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 median15.6 °C 12.2–19.5
Seasonal swing summer↔winter26.1 °C
Max temp (day)20.3 °C 16.8–24.1
Min temp (night)10.8 °C 7.90–16.8
Precipitation86.3 mm/mo 77.8–104
Air humidity57.1 % 55.1–60.5
Moisture balance-38.0 mm/mo -55.7–-15.0
Vapour deficit792 Pa 627–914
Wind speed3.30 m/s 2.70–4.40
Cloud cover41.9 % 38.0–46.8
CHELSA 1981–2010, ~9 km grid, at location & month of 14 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.