Category: moths (Page 15 of 30)

Bug of the Week: Flying Moths

Every morning when I stumble out to pick up the newspaper, I like to take a moment to look around at what is happening in the yard. Usually it is still peaceful. Only the birds are awake.

This morning something was zooming around the clumps of desert marigolds. It looked like a small hummingbird, and it flew fast and strong like a bird. Except it wasn’t.

Here’s one from an older slide I had scanned.

The white-lined sphinx moths have emerged!

White-lined sphinx moths are unusual for moths because they can be seen flying during the day, particularly in the early morning. Aren’t they beautiful?

Have you seen any insects this week?

 

Bug of the Week: Cotton Leaf Perforator Caterpillar

Even after all these years of recording insects in our yard, it is still possible to discover a few new ones.

Take last week. I found this tiny caterpillar feeding on a Thurber’s cotton leaf.

(I’m afraid the photograph is a bit blurry because it was a windy day.)

With a little research I found out it is the larva of the cotton leaf perforator moth, Bucculatrix thurberiella. The youngest caterpillars mine the leaves on the inside, creating tiny tunnels. When they get larger, they stay on the surface chewing out window panes of leaf tissue.

You can see photographs of the adult moth at Discover Life.

Am I worried about this caterpillar feeding on my plant?

Well, no. First of all the caterpillar is very small, and the plant is very big. Secondly, it is winter and the cotton plant is losing its leaves anyway. What difference does it make if a caterpillar takes a few bites before the leaf falls off?

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This is what the Thurber’s cotton plant looked like earlier in the year:

You can see more at this related post about Thurber’s cotton.

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