The Clouded Yellow (96)
The Clouded Yellow is an abundant and widespread butterfly in North Africa and the Mediterranean region, from where it migrates north-wards each year.
The butterflies breed in a wide range of habitats including cultivated lucerne fields, clover-rich farm headlands, steep well-drained chalk and limestone grasslands, abandoned quarries, road and rail embankments - anywhere in fact where the foodplants grow in profusion in a warm dry habitat.
The butterfly is multi-brooded in warmer parts of it's range, but in Britain it normally produces only a single generation, emerging from July to mid August - the progeny of adults that migrated northward from the continent in May or June. In particularly warm summers there is often a partial 2nd brood that emerges in October. These late emerging adults and any resulting eggs or caterpillars normally perish in early winter, but at a tiny handful of sites on the south coast larvae occasionally overwinter successfully, producing a few adults in February or March.