Butterfly or moth
Clouded Yellow
Colias croceus · Pieridae · Lepidoptera
Best monthsJul–Sepmost records
Records337,098in 46 countries
Most seen inFrance128,957 records
Red List–IUCN status
About
Clouded Yellow in brief
The clouded yellow (Colias croceus) is a butterfly or moth of the Pieridae family — species of butterfly.
Across the 46 countries we cover it has 337,098 published records, most of them from France, Switzerland and the Netherlands. It is strongly seasonal: records peak in July, August and September and fall to their lowest in January and December.
Records by month
All countries combined · the strongest months highlightedJFMAMJJASOND
Where & when
When to look in each country
France128,957 records · best Aug, Sep
Switzerland54,528 records · best Aug, Sep
Netherlands46,601 records · best Aug, Sep
Spain40,317 records · best Jun, Jul
Belgium20,474 records · best Aug, Sep
Portugal7,645 records · best May, Jul
Serbia6,789 records · best Jul, Jun
Israel6,472 records · best Apr, May
Italy6,324 records · best Jul, Sep
Austria5,952 records · best Aug, Sep
Greece3,718 records · best May, Apr
Hungary1,250 records · best Oct, Sep
Bulgaria1,235 records · best Jul, Jun
Ireland921 records · best Aug, Sep
Croatia894 records · best Sep, Aug
Slovenia674 records · best Jul, Aug
Cyprus651 records · best Apr, May
Morocco631 records · best May, Jun
Türkiye620 records · best Jul, Jun
North Macedonia518 records · best Jun, Jul
Albania306 records · best Jun, Jul
Georgia293 records · best Sep, Aug
Andorra242 records · best Aug, Jul
Algeria167 records · best May, Jun
Liechtenstein138 records · best Aug, Jul
Malta131 records · best Apr, Nov
Montenegro127 records · best Jun, Sep
Armenia119 records · best Jun, Jul
Iran78 records · best Jun, May
Kosovo48 records · best Nov, Jun
Palestine42 records · best May, Apr
Azerbaijan41 records · best Jun, May
Tunisia39 records · best Jun, May
Bosnia and Herzegovina38 records · best Oct, Jun
Syria35 records · best May, Jun
Iraq15 records · best May, Apr
Lebanon15 records · best Jun, May
Qatar11 records · best Mar, Jan
Cape Verde10 records · best Oct, Jan
Moldova9 records · best Aug, Jun
Libya7 records · best Nov, Jul
Egypt6 records · best Feb, Jan
Kuwait5 records · best Oct, Apr
Jordan3 records · best Oct, May
San Marino1 records · best Jul, Jan
Bahrain1 records · best Sep, Jan
Map
Where it has been recorded
Density of published records; brighter cells have more records.
Relatives
All butterflies & moths
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