|  | In spring, the Little Tortoiseshell (Aglais urticae) places a heap of green eggs on the underside of a leaf of stinging nettles. The "urticae" part of its Latin name refers to this plant species, expressing the close bond of the butterfly to it as a food plant. About 100 eggs make a heap like this one. The eggs show little emerging ribs (or fins?). During few days, the eggs become darker as they mature. Soon the little caterpillars hatch. First, they make a small gray web for their own shelter, where they can safely feed and grow. | 
|    | Butterfly | Eggs | Caterpillar | 
| Chrysalis | Hatching | The Host | |
| A Parasite | A Hyper-parasite, male | A Hyper-parasite, female | 
| Photograph by José Verkest, Text by Maria Pfeifer |