Colias croceus (Fourcroy, 1785)


Colias croceus: Adult (Olympus 2012) [N] Colias croceus: Adult (Olympus 2012) [N] Colias croceus: Male (Madeira, March 2013) [N] Colias croceus: Male (Madeira, March 2013) [N] Colias croceus: Male (Madeira, March 2013) [N] Colias croceus: Male (Madeira, March 2013) [M] Colias croceus: Male-lower side [N] Colias croceus: Adult [N] Colias croceus: Adult (Sardinia, May 2012) [N] Colias croceus: Male upper side [M] Colias croceus: Female [S] Colias croceus: Female (Madeira, March 2013) [N] Colias croceus: Female (Madeira, March 2013) [N] Colias croceus: Courtship with refusing female (eastern Spain, Tarragona, July 2013) [N] Colias croceus: Courtship with refusing female (eastern Spain, Tarragona, July 2013) [N] Colias croceus: Copulation (Madeira, March 2013) [N] Colias croceus: Oviposition (Madeira, March 2013) [N] Colias croceus: Fresh egg (Madeira, March 2013) [M] Colias croceus: Ovum [M] Colias croceus: Ovum after some days [S] Colias croceus: Egg after a few days (e.o. Madeira 2013) [S] Colias croceus: Egg after a few days (e.o. Madeira 2013) [S] Colias croceus: Half-grown larva (Madeira, Santana, March 2013) [M] Colias croceus: Half-grown larva (Madeira, Santana, March 2013) [M] Colias croceus: Half-grown larva (Madeira, Santana, March 2013) [N] Colias croceus: Larva (Madeira, March 2013) [M] Colias croceus: Larva (Madeira, March 2013) [M] Colias croceus: Larva (Madeira, March 2013) [M] Colias croceus: Larva [M] Colias croceus: Larva (Fuerteventura, February 2011) [N] Colias croceus: Larva (Fuerteventura, February 2011) [N] Colias croceus: Pupa [S] Colias croceus: Pupa (east Spain, Castellòn, July 2013) [N] Colias croceus: Pupa [S] Colias croceus: Pupa, dorsal [S] Colias croceus: Habitat in northern Baden-Württemberg in Germany is here a still not too intensive meadow with abundant Trifolium and Lotus (August 2012). Here I observed adults feeding on flowers together with Colias hyale and Lycaena dispar. [N] Colias croceus: Habitat in the extensive agricultural landscape in the vicinity of Mount Olympus in Greece (August 2012) [N] Colias croceus: Habitat in Madeira (Sao Lourenco) in March 2013 (Lotus and Vicia sp, among others). The species is one of the most common butterflies in Madeira. [N]

Host plants:
The larvae feed on Fabaceae such as Lotus, Medicago, Onobrychis and others.

Habitat:
Colias croceus inhabits open land of all kinds. The butterflies love to fly on warm slopes or on red clover and alfalfa fields.

Life cycle:
Colias croceus is a migrant butterfly from the south that can survive north of the Alps only occasional mild winters (in the Upper Rhine Valley somewhat regular). Here the availability of feedable larval host plants seems toplay a role. The wintering caterpillars seem to withstand lighter frosts reltively good (Jürgen Hensle). The adults fly from May to October, rarely even sooner or later.

Endangerment factors:
This migratory species can not usefully be assigned to a risk category, although the decline of sunny, extensively managed slopes and less productive Medicago fields reduces the proliferation potential in the north.

Remarks:
The distribution extends from north Africa across Southern and Central Europe to Central Asia. On migration, Colias croceus can penetrate far to the north.



Colias alfacariensis | Colias aurorina | Colias hyale | Colias palaeno | Colias phicomone