Vanessa atalanta rubria
Photo Life History: Vanessa atalanta rubria
Host Plants: Urtica dioica
Suitable Lab Host Plants:
Caring for Live Female Butterflies: Feed females regularly.
How to Find Eggs: Is not very easy. However females during the mid-summer months will sometimes oviposit on hostplants with new growth or towards the top of taller plants. It is much easier to find caterpillars. (See below.)
How to Hatch Eggs: Consolidate eggs into one container
How to Find Caterpillars in the Field: Finding caterpillars is not too difficult if you search for their unique nests around June or July. (Watch this video which demonstrates the differences between red admiral and milbert's tortoise shell nests vs. satyr comma nests.)
Overwintering Stage: Adult.
Emergence: Emergence Container
Number of Broods per Year: 1-2 depending upon location.
Avoiding Diapause Techniques:
Disease Prevention: Change out host plant and remove frass every three to six days.
Field Notes: Red Admirals are sometimes spotted migrating north with painted ladies during the spring.