Achlya flavicornis, the yellow horned, is a moth of the family Drepanidae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It is found from Europe to the eastern Palearctic ecozone. Larva Birch woodland habitat The wingspan is 35–40 mm. The length of the forewings is 17–20 mm. The ground colour is greenish grey, sometimes speckled or dusted with darker grey. The reniform and orbicular marks are generally clear and distinct, but in some examples they are united and form a whitish blotch outlined in blackish; the cross lines are usually well defined, but in the dark grey dusted form are very obscure. The moth flies from February to April depending on the location. The final instar larva is either off white all over or off white below the spiracles and darker greyish or olive green dorsally. There is a row of black spots and finely black-edged white dots. The insect overwinters as a pupa in a cocoon, amongst leaf litter. The larvae feed on birch.
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 Achlya flavicornis has left across the world's sequence archives.
At a glance
DNA specimens53
BINs2
Marker genes3
eDNA detections59
Countries9
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P658 bp consensus48 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. 98% of positions are identical in every specimen.
Where individuals differ — all 15 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%
Haplotypes12
BINs2
Most divergent pair2.7%
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-3P★COI-5PEF1-alpha
animal barcodemarker
06Genome at a glanceGoaT
The complete instruction manualAchlya flavicornis 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.
Genome sizehow big the whole instruction manual is
Genome size≈444 558 171 bp assembly estimate
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
BACTERIUM Carsonella ruddii0.00016 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
THIS GENOME Achlya flavicornis0.44 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
Assembly levelChromosome
Completeness98.8% BUSCO
08Occurrence & distribution
Record type59 592 records
Wild obs. + sensor53 877
Museum / vouchered5 614
Other101
Origin
Native816
Range
Area of Occupancy AOO39 712 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 accuracy43% within 1 km
≤100 m 15 779≤1 km 6 720≤10 km 29 489>10 km 174
52 162 georeferenced · 1 715 without coordinates
Open the mapobservation + sensor53 877
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 accuracy55% within 1 km
≤100 m 1 504≤1 km 1 346≤10 km 2 313>10 km 65
5 228 georeferenced · 386 without coordinates
Open the institutions mapphysical evidence5 614
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 50 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Helsinki, FI
1 812
DanishLepidopterologicalSocietylocation not on record
765
Kuopio, FI
259
NHMOlocation not on record
222
Tartu, EE
120
Salzburg, AT
106
Zürich, CH
98
South Kensington, GB
87
NTNU-VMlocation not on record
85
SLU Artdatabankenlocation not on record
81
ZMAAlocation not on record
73
Philadelphia, US
39
Tromsø, NO
35
Natural History Museum Rotterdamlocation not on record
32
Tallinn, EE
31
Adam Mickiewicz University in Poznańlocation not on record
29
Durban Natural Science Museumlocation not on record
28
Frauenfeld, CH
24
SFRAlocation not on record
23
Geneva, CH
22
Bern, CH
20
Musee d'Histoire Naturallelocation not on record
19
MZLUlocation not on record
19
Muzeum Górnośląskie w Bytomiulocation not on record
18
RMZlocation not on record
16
Dhaka, BD
16
DABUHlocation not on record
14
NMOKlocation not on record
14
Stockholm, SE
13
Nijmegen, NL
12
Provincia di Livornolocation not on record
11
Uniwersytet Jagiellońskilocation not on record
10
Sion, CH
9
ZSMlocation not on record
7
Museum zu Allerheiligen Schaffhausenlocation not on record
5
neflocation not on record
5
Rovaniemi, FI
4
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
4
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
4
Bavarian State Collection of Zoologylocation not on record
2
Archäologie und Museum Baselland - Museum.BLlocation not on record
2
NMBU:MINAlocation not on record
2
BioFokuslocation not on record
2
Uniwersytet Łódzkilocation not on record
2
KSTRlocation not on record
1
Metsähallituslocation not on record
1
Naturmuseum St. Gallenlocation not on record
1
Zoological Museum of the University of Chittagong, Bangladeshlocation not on record
1
University of Oslo, Natural History Museumlocation not on record
1
Brussels, BE
1
50 institutions · 4 207 of 5 614 vouchered records shown · 1 407 without an institution code
09Environmental DNA59 detections
Where the DNA of Achlya flavicornis 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 found59
Studies independent surveys3
Countries9
Verifiable raw sequence linked8
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 59 detections have coordinates
Open the map9 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 median6.00 °C 1.90–14.8
Seasonal swing summer↔winter18.7 °C
Max temp (day)8.90 °C 4.70–18.0
Min temp (night)2.40 °C -3.80–11.1
Precipitation67.1 mm/mo 49.3–115
Air humidity60.7 % 58.4–64.3
Moisture balance6.90 mm/mo -31.4–77.5
Vapour deficit362 Pa 273–715
Wind speed3.40 m/s 2.10–5.20
Cloud cover48.0 % 41.3–58.3
CHELSA 1981–2010, ~9 km grid, at location & month of 57 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.