What's Stirring on Christmas Eve

Dec 24, 2012

What's Stirring on Christmas Eve

Dec 24, 2012

'Twas the night before Christmas, when all through the house
Not a creature was stirring, not even a mouse...
--Clement Clarke Moore (1779-1863)

In our house, nothing is stirring, thanks be to the cat. Xena the Warrior Princess does not like anything stirring. Even the dog annoys here.

But in the yard, quite a few insects were stirring on the Passiflora (passion flower vine) this afternoon. We planted it last summer to attract Gulf Fritillary butterflies (Agraulis vanillae). Passiflora is their host plant. In the late summer, we saw the adults mating and an occasional female laying eggs. Then the caterpillars appeared and began munching on the leaves.

Today we spotted about eight Gulf Fritillary caterpillars soaking up what was left of the sun. Also on board was a Gulf Fritillary chrysalis, but it was not stirring.

An overwintering Harlequin bug wandered around looking lost--but we're sure it was up to something. Last summer its ancestors were enjoying our lemon cucumbers, planted nearby. 

As butterfly expert Art Shapiro, distinguished professor of evolution and ecology at UC Davis says about the Harlequin bugs: "They prefer Crucifers (cabbage, cauliflower, broccoli, kale, etc.) but are not limited to 'em!"