Xylocopa valga is a species of carpenter bee common to: western, central and southern Europe, except for far northern latitudes; the Caucasus; Middle East; Central Asia; and Mongolia. The solitary bee has a black and blue coloured body, 20–27 mm in length, and densely covered with purple hairs. The small wings also have a purple tint. The bee creates cavity nests by gnawing the wood in the trunks of dead trees and in old wooden structures. It inhabits both forests and urban areas. They have been observed pseudo-copulating on the petals of Iris paradoxa near Gosmaljan, Azerbaijan. X. valga on Chinese wisteria.
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 Xylocopa valga has left across the world's sequence archives.
At a glance
DNA specimens22
BINs1
Marker genes2
eDNA detections3
Countries7
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P658 bp consensus12 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. 100% of positions are identical in every specimen.
Diversity (π)0.17%
Haplotypes2
BIN1
Most divergent pair0.46%
Where individuals differ — all 3 variable positions, in barcode order
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-5P16S
animal barcoderibosomal
08Occurrence & distribution
Record type4 483 records
Wild obs. + sensor2 495
Museum / vouchered1 862
Other126
Origin
Native331
Range
Area of Occupancy AOO10 556 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 accuracy76% within 1 km
≤100 m 1 028≤1 km 328≤10 km 376>10 km 57
1 789 georeferenced · 706 without coordinates
Open the mapobservation + sensor2 495
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 accuracy40% within 1 km
≤100 m 68≤1 km 341≤10 km 590>10 km 18
1 017 georeferenced · 845 without coordinates
Open the institutions mapphysical evidence1 862
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 institutions18 of 38 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Zürich, CH
97
66
Bern, CH
65
Provincia di Livornolocation not on record
51
Philadelphia, US
45
Musee d'Histoire Naturallelocation not on record
43
Paro, BT
32
Naturéum — Muséum cantonal des sciences naturelles, Lausanne, Département Zoologielocation not on record
30
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
28
Museum zu Allerheiligen Schaffhausenlocation not on record
17
Beltsville, US
15
Wuzhou, CN
13
PRAZlocation not on record
12
Tartu, EE
11
Geneva, CH
10
Sion, CH
10
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
8
Universität Zürich, Naturhistorisches Museumlocation not on record
8
Muzeum Górnośląskie w Bytomiulocation not on record
7
Dhaka, BD
6
ARTlocation not on record
5
Fribourg, CH
4
ZSMlocation not on record
3
Bavarian State Collection of Zoologylocation not on record
3
Cambridge, US
3
Natural History Museum Rotterdamlocation not on record
3
ENSAT - L'Ecole Nationale Superieure Agronomique de Toulouselocation not on record
2
IENElocation not on record
2
New Haven, US
2
Frauenfeld, CH
2
University of Tokyo, Department of Zoologylocation not on record
1
US
1
NMOKlocation not on record
1
Washington, US
1
European Distributed Institute of Taxonomy (EDIT)location not on record
1
University of Florence, Department of Biologylocation not on record
1
UMUlocation not on record
1
Coimbra, PT
1
38 institutions · 611 of 1 862 vouchered records shown · 1 251 without an institution code
09Environmental DNA3 detections
Where the DNA of Xylocopa valga 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 found3
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 3 detections have coordinates
Open the map2 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 median15.4 °C 15.0–15.6
Seasonal swing summer↔winter15.9 °C
Max temp (day)19.2 °C 19.1–19.7
Min temp (night)9.90 °C 9.60–10.4
Precipitation79.3 mm/mo 75.8–89.1
Air humidity59.5 % 58.8–60.4
Moisture balance-39.9 mm/mo -47.2–-31.8
Vapour deficit723 Pa 683–724
Wind speed3.40 m/s 2.00–3.60
Cloud cover41.6 % 38.3–42.2
CHELSA 1981–2010, ~9 km grid, at location & month of 3 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.
WikipediaWikimedia Foundation7 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 483 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics22 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗