Category: moths (Page 28 of 30)

Bug of the Week: Cabbage Looper Moth

Did you wonder what kind of moth was in the cocoon in the “another lacewing larva” post? I did and so I kept an eye on it. This week a brown moth emerged.

cabbage looper moth

It is a cabbage looper moth, Trichoplusia ni. Check out the punk look. Isn’t that wild?

cabbage looper moth

I didn’t muss this moth up, those are naturally arranged scales. It also has some white markings on it’s wing.

The cabbage looper pupa is pale green with some brown marks on the back and it is hidden under a shield of white silk.

The cabbage looper caterpillar was bug of the week in an earlier post. It is a pale green caterpillar that loops when it walks.

Moths are often ignored because they are small, drab and are most active at night. But as you can see, if you look at them close up, they can be quite fascinating.

If you are interested in finding out more about moths, try:

Discovering Moths: Nighttime Jewels in Your Own Backyard by John Himmelman

Bug of the Week: Cabbage Looper

It’s cabbage looper season here again. In some places cabbage loopers might be considered to be pests, but in our yard they are considered to be pets. They are hardy, will eat a wide range of foods, and they show up every year.

cabbage looper

The looper gets its name from the fact it “loops up” in the middle while walking. The caterpillar has two sets of appendages. Its six true legs are right behind the head. Towards the rear is another set of fleshy, wider appendages called “prolegs.” Scientists don’t count the prolegs, so the caterpillar still has the six legs characteristic of insects.

cabbage looper

The caterpillar holds on with the true legs and brings its back end forward. The prolegs meet the true legs, and the back forms a loop. Then it releases the true legs. The head and front spring forward. The looper holds on with its true legs and the process repeats.

This one was nibbling my mint, but I’m not too concerned. The mint is prolific and the caterpillar has a lot of enemies. It is eaten by birds, wasps and parasitic flies. So, loop on little buddy.

Edit: The cabbage looper moth is featured in a later post.

What White-lined Sphinx Caterpillars Eat

I was asked a question last week about what white-lined sphinx moth caterpillars eat. I had read that they eat wild relatives of the four-o’clock, a garden plant. A few weeks ago we visited Boyce Thompson Arboretum State Park and I got some great first-hand information about what kind of plants the caterpillars feed on.

At the arboretum we found caterpillars on a native plant that is being used as a landscape perennial called pink guara (Guara lindeimeri). I noticed, however, the caterpillars were only eating the flowers. Often the flowers lack toxins or feeding deterrents found in the leaves or stems, although I don’t know for sure this is the case here.

whitelined sphinx moth

Some of the caterpillars were working on a plant called white ratany (Krameria grayi).

whitelined sphinx moth

whitelined sphinx moth

I needed a friend’s help to identify that one. The plant has pretty purplish-pink flowers, but they are inconspicuous. She said the plant is a partial parasite that takes food from the roots of fellow desert plants like bursage or creosote bush. I also found out that the flowers produce an oily substance rather than nectar (weird!), but that some native bees will take it to mix with pollen.

whitelined sphinx moth

Finally, we cheered the caterpillars when we found this batch eating the noxious weed, spotted spurge. Go white-lined caterpillars, go! (Sorry, the photo isn’t all that great).

For more information about white-lined sphinx moths and their caterpillars, check these previous posts:

Raising Caterpillars, which also has a photo of the adult

More About White-lined Sphinx Moth Caterpillars

Bug of the Week:  White-lined Sphinx Caterpillars

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