Year: 2013 (Page 5 of 59)

Bug of the Week: Queen Caterpillar

Fresh from the camera, today we have a stripy-faced caterpillar. (Yes, we still have insects out and about here in Arizona.)

stripy-face-caterpillar

Yum, the buds of the rush milkweed flower are tasty.

The structures that stick out behind the head that look like they might be antennae are actually called tubercles. Queen caterpillars have three pairs of tubercles, for a total of six. Similar monarch larvae have two pairs of tubercles, one set at each end. The tubercles are thought to help protect caterpillars from predators.

stripy-face-better

Where are the real antennae? Butterfly larvae do have two buds in the lower front of the face that will become the long antennae of the adult. Can you see the tiny light-colored “fingers” that the project on either side of the mouth?

When you start to look around the photograph, you start to notice other things. Take the winged aphid, for example. That is an oleander aphid.

stripy-face-better-with-extra

Notice anything else in this photograph? If you chose to, please feel free to leave a comment if you spot something. (I didn’t notice it until I had the photograph on the computer screen).

Mystery Seed of the Week 183

Note:  I’m afraid my computer had a bit of a Thanksgiving overload last week and took a nap. Hopefully, the repair elves can keep it from being a permanent nap. In any case, I don’t have access to many of the photographs I was planning to use for Seed of the Week this month and I’ll be scrambling a bit. Please bear with me.

mystery-seed-183-pod

The seed in the pods look quite delicate. Too bad the plant itself is an invasive meanie throughout much of North America.

mystery-seed-close-up-183(Photograph by Steve Hurst @ USDA-NRCS PLANTS Database)

Do you recognize what plant these seeds are from? If you choose to, please leave a comment with your ideas.

Edit:  The answer is now posted.

Bug of the Week: Long-horned beetle

The locust borer from a few weeks back belongs to the group of beetles known as long-horned beetles, family Cerambycidae.

long-horned-beetle-shows-antennae

Today we have another example. The Cerambycidae are named for their long antennae, often much longer than the insect’s body.

good-long-horned-beetle

I’m pretty sure this is the striped longhorn or double-banded bycid, Sphaenothecus bivittatus. The larvae feed on mesquite and there was a mesquite tree about three feet away from where this photograph was taken.

The next week I went back out to look again, but the flowers had quit blooming so I didn’t have any luck finding more. Shows that sometimes you just have to be at the right place at the right time.

 

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