Allograpta obliqua is a common North American species of hoverfly, commonly known as oblique streaktail. The larvae are important predators of aphids while adults are pollinators.
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 Allograpta obliqua has left across the world's sequence archives.
At a glance
DNA specimens98
BINs1
Marker genes1
eDNA detections127
Countries4
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P658 bp consensus87 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. 99% of positions are identical in every specimen.
Where individuals differ — all 6 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)0.37%
Haplotypes3
BIN1
Most divergent pair0.46%
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
06Genome at a glanceGoaT · TreeOfSex
The complete instruction manualAllograpta obliqua carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
TreeOfSex · invert — Boyes, J. W. and J. M. Brink (1964). "Chromosomes of Syrphidae." Chromosoma 15(5): 579-590. ↗
08Occurrence & distribution
Record type17 104 records
Wild obs. + sensor14 777
Museum / vouchered2 327
Origin
Native841
Range
Area of Occupancy AOO33 084 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 accuracy79% within 1 km
≤100 m 7 684≤1 km 2 015≤10 km 593>10 km 1 936
12 228 georeferenced · 2 549 without coordinates
Open the mapobservation + sensor14 777
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 accuracy71% within 1 km
≤100 m 544≤1 km 144≤10 km 144>10 km 135
967 georeferenced · 1 360 without coordinates
Open the institutions mapphysical evidence2 327
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 43 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Los Angeles, US
838
Mexico City, MX
342
Champaign, US
171
University of Guelphlocation not on record
165
Lubbock, US
88
San Diego, US
88
Santa Cruz, US
82
University of Nebraska State Museumlocation not on record
75
Essig Museum of Entomologylocation not on record
73
US
71
Lake Placid, US
56
Ciudad de México, MX
34
Georgia Museum of Natural Historylocation not on record
28
Université de Montréallocation not on record
26
University of Western Ontariolocation not on record
17
National Biodiversity Institute, Costa Ricalocation not on record
16
WIlocation not on record
15
US
12
Chicago, US
11
Toronto, CA
11
UFPRlocation not on record
10
University Park, US
9
University of Guelph, Centre for Biodiversity Genomicslocation not on record
8
Cambridge, US
8
New Haven, US
7
Ciudad de México, MX
6
Washington, US
5
Cleveland Museum of Natural History, OH (CLEV)location not on record
5
Philadelphia, US
3
USGS Pacific Island Ecosystems Research Centerlocation not on record
2
University of Alberta Museums (UAM)location not on record
2
Instituto Nacional de Biodiversidad, Costa Ricalocation not on record
2
Biodiversity Institute of Ontariolocation not on record
2
CUlocation not on record
2
Natural History Museum of Utahlocation not on record
1
New Mexico Museum of Natural History and Sciencelocation not on record
1
Wuzhou, CN
1
Universidad de Antioquia (UdeA)location not on record
1
Tapachula, MX
1
Centre for Biodiversity Genomicslocation not on record
1
Saint John, CA
1
Denver, US
1
SUNY ESFlocation not on record
1
43 institutions · 2 299 of 2 327 vouchered records shown · 27 without an institution code
09Environmental DNA127 detections
Where the DNA of Allograpta obliqua 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 found127
Studies independent surveys1
Countries4
Signal confidence: weakweighed across independent studies, places & mapped detections
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 median16.8 °C 12.9–21.4
Seasonal swing summer↔winter17.3 °C
Max temp (day)21.9 °C 15.2–26.7
Min temp (night)13.4 °C 8.00–17.8
Precipitation83.0 mm/mo 2.50–123
Air humidity59.2 % 54.7–66.4
Moisture balance-37.8 mm/mo
Vapour deficit733 Pa 571–1,060
Wind speed3.30 m/s
Cloud cover37.9 % 15.1–46.7
CHELSA 1981–2010, ~9 km grid, at location & month of 115 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 Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility17 104 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI127 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics98 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
Tree of SexTree of Sex Consortiumgenome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗