There are several patches of evening primrose at the arboretum. The plants are still young, but growing rapidly, and attracting lots of different kinds of insects.
Eggs of the white-lined sphinx moth dot some of the leaves.
They are a lovely, pale green.
A hatchling white-lined sphinx caterpillar is just barely visible. (See the spike on the tail?)
This one was about an inch long, the biggest I saw. Most of the caterpillars at the arboretum live at great risk of predation by wasps. Fortunately for these guys, the weather has been too cloudy and chilly for the wasps. I don't know how big is too big for a caterpillar to be carried off by a wasp.
This one was a similar size, but very pale green. That's one of the things I like about these caterpillars: the variation in coloring.
A few ladybugs. I think they must be anticipating an aphid infestation.
These little beetles were pretty, but I think their larvae are chewing up a lot of the new growth on the plants. (The larvae wrap themselves in the leaves, and they're tiny, so I wasn't able to get a good shot of them. Maybe I'll try again later.)
A small katydid species.
Hatchling nymph of above. (I think)