Monarchical

We have three of these caterpillars that we know of, and less and less in the way of milkweed. They are definitely monarch larvae (the caption for this image was "cohort aggression") and members of the asclepias family are all that they will eat. Parks and Wildlife has a Texas monarch-tracking site that has an interesting section about the types of milkweed found in Texas. We have a two-toned orange type and an all-yellow type, both brought by the wind and for the first time this year. Somebody's done an homage to asclepias in Texas with lots of links. At least the orange-and-yellow ones may be curassavica (hierba de zizote). Both of these pictures look like ours.