Aphylla williamsoni

(Gloyd, 1936) · species

image placeholder — illustration coming later

Animalia/Arthropoda/Insecta/Odonata/Gomphidae/Aphylla

At a glance

Occurrence records1 777

Data sources8

Biological traits0

DNA specimens2

eDNA detections2

Sources8 archives

Databases and archives Aphylla williamsoni's data was compiled from.

WikipediaWikimedia Foundation3 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility1 777 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics2 specimens↗

Open Tree of LifeOpenTreephylogeny backbone↗

WikidataWikimedia Foundationstructured facts↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page4 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Occurrence & distributionGBIF1 777 records

Environmental DNA1 datasets · 1 countries2 detections

DNA & barcodingBOLD2 specimens

01Narrative

Aphylla williamsoni, known generally as the "two-striped forceptail", is a species of clubtails in the family Gomphidae. It is found in North America. The IUCN conservation status of Aphylla williamsoni is "LC", least concern, with no immediate threat to the species' survival. The population is stable.Ware, Jessica L., Pilgrim, Erik, May, Michael L., Donnelly, Thomas W., & Tennessen, Kenneth (2017). "Phylogenetic relationships of North American Gomphidae and their close relatives". Systematic Entomology vol. 42, no. 2, 347-358.

No narrative description available for this taxon yet.

02Traits & measurements

No structured trait data for this taxon yet.

05DNA & barcoding2 specimens

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 Aphylla williamsoni has left across the world's sequence archives.

At a glance

DNA specimens2

BINs1

Marker genes1

eDNA detections2

Countries1

Marker genes sequenced

★ 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 type1 777 records

Wild obs. + sensor1 621

Museum / vouchered156

Range

Area of Occupancy AOO3 956 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 577≤1 km 242≤10 km 55>10 km 47

921 georeferenced · 700 without coordinates

Open the mapobservation + sensor1 621

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 accuracy31% within 1 km

≤1 km 11≤10 km 18>10 km 6

35 georeferenced · 121 without coordinates

Open the institutions mapphysical evidence156

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 institutions6 of 10 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Odonata Centrallocation not on record	55
Washington, US	12
Cornell University Insect Collectionlocation not on record	12
University Park, US	6
Montréal, CA	3
College Station, US	1
New Haven, US	1
Natural History Museum of Utahlocation not on record	1
University of Central Floridalocation not on record	1
Champaign, US	1

10 institutions · 93 of 156 vouchered records shown · 63 without an institution code

09Environmental DNA2 detections

Where the DNA of Aphylla williamsoni 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 found2

Studies independent surveys1

Countries1

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 2 detections have coordinates

Open the map1 country0

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 median25.4 °C 25.4–25.4

Seasonal swing summer↔winter11.2 °C

Max temp (day)30.7 °C

Min temp (night)20.5 °C

Precipitation70.0 mm/mo

Air humidity58.2 %

Moisture balance-106 mm/mo

Vapour deficit1,348 Pa

Wind speed2.70 m/s

Cloud cover30.0 %

CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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.

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Aphylla williamsoni

At a glance

Sources8 archives

At a glance

Record type1 777 records

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions6 of 10 geolocated

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type1 777 records