Minsmere Crimson Underwing

Minsmere Crimson Underwing

Catocala coniuncta

Daily sighting probability ~10% · With luck
at Porto

In 3 days ~20% in a week ~30%

20 Verified sightings at Porto
35 In all 2 parks From 2019 to 2026
August Best month
☀️🌙 Day & Night When it's spotted

About the Minsmere Crimson Underwing

Catocala coniuncta is a circum-Mediterranean species of moth whose range extends across southern Europe, North Africa and extending to the Middle East. Its species name has for a long time been misspelled "conjuncta"; this was only corrected in 2010.

Like other related species C. coniuncta has mottled brown fore-wings and crimson-red hind-wings with a black central line. The species differs from its European congeners in the shape of the post-median line on the fore-wing and the straighter black line on the hind-wings. The larvae feed on holm oak (Quercus ilex).

Extra-limitally, C. coniuncta has occurred just once in Britain, being found at light by Robin Harvey at the RSPB Minsmere reserve on the Suffolk coast on 14 September 2004. Following this record the English name Minsmere crimson underwing has been adopted. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Cévennes National Park 🇫🇷 France
~10%
2 Pyrénées National Park 🇫🇷 France
<5%

Cities Where Found

# City Country Daily sighting probability
1 Porto 🇵🇹 Portugal
~10%
2 Madrid 🇪🇸 Spain
<5%

Before you go

What are the chances of seeing a Minsmere Crimson Underwing in Porto?

With luck

About 10% of wildlife watchers report a Minsmere Crimson Underwing sighting in Porto on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 242nd most-seen of the 498 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Minsmere Crimson Underwing in Porto?

August and September

In those months about 10% of wildlife watchers report a Minsmere Crimson Underwing in Porto on a given day, against under 5% in October to July, the lowest months. Those are among Porto's driest months, with about 35 mm of rain a month against 140 mm in January.

What time of day is best to see a Minsmere Crimson Underwing?

Between 10 pm and 1 am

Across all the parks we cover, that three-hour window holds the most Minsmere Crimson Underwing sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.

Is Porto the best place to see a Minsmere Crimson Underwing?

Yes

Of the 2 cities where we can rate Minsmere Crimson Underwing sightings, Porto has the highest daily chance: about 10%. Next come Madrid (Spain, under 5%).

Where does the Minsmere Crimson Underwing sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Minsmere Crimson Underwing is recorded against all the insects logged in Porto (20 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

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