Siona lineata (Scopoli, 1763)

Host plants:
The larvae are polyphagous, but feed often on Papilionaceae like sainfoin.

Habitat:
Siona lineata inhabits particularly moderately high growing, but still not too nutrient-rich and extensively managed meadows, grasslands, dams, forest edges and similar places.

Life cycle:
The caterpillar overwinters. Pupation takes place in a spindle-shaped cocoon at straws or near the ground. The adults can be observed from mid-May to early July and are also active during the day.

Endangerment: regionally endangered or decreasing

Endangerment factors:
Siona lineata has declined sharply due to the reduction of extensive open land habitats. Where such habitats are still present in a larger scale like for example on the limestone juniper grasslands in the Jura, Siona lineata can be observed, however, still very regularly.

Remarks:
The spread ranges from the Iberian Peninsula to Mongolia.