Very short, in the night / morning
Pinus sylvestris, Picea, Pseudotsugo meniesii, Larix
This species is medium difficult to rear. Some say they need to be put
in humid conditions, others in dry. Caterpillars must first drink after
emerging. You can put the young caterpillars onto the food plant with
a pencil. You can put them in a dark place so they start to feed.
Caterpillars die easy when going into the next instar. I put some tissue
on the bottom and spray them. On top a dry tissue, and then the
foodplant. This will give some humidity in a closed box, so the
caterpillars will survive. Clean daily! In later instar it is better to keep
them separate, not to many with each other, and open condition for
some airflow. It is a Mountain species, so it is best to keep them
Cocoons should be kept a little bit humid. Temperature not above 22-
23°C! Pairing is not very difficult. For helping the female to deposit the
eggs, you can put some feeding plants inside the cage. If you keep
the cocoons in cold storage, they overwinter.
* NOTE: Some people say they don't do well on cut foodplants. If you
use potted plants, and rear them inside, you could best spray them
every day to prevent dehydration of the caterpillars.