Category: Bug of the Week (Page 33 of 218)

What We See, What They See

When I visited the yard this morning to take photographs for this post, first I checked to see what was flowering. Flowers are great places to find insects.

The little leaf cordia (Cordia parviflolia) attracted my eye. It was covered with clusters of white blossoms.

The flowers were beautiful, but nothing was visiting them. In contrast, the plant next to it was humming and buzzing.

That’s the wolfberry, Lycium species. It isn’t much to look at from a human perspective.

From an insect’s perspective, however, it was an open grocery store.

The honey bees and digger bees were lining up to sip nectar.

Smaller bees were wrapped around the anthers harvesting pollen.

When it was done, the underside of this one’s abdomen was white with pollen.

Snout butterflies visited the flowers, too. They are drab when sitting like this.

Surprise!

Numerous flower flies and a few wasps flitted around. This flower or hover fly has a really big head compared to the rest of its body.

From the street (top photograph) the wolfberry bush looks like a small cluster of brownish branches on the left between the bright green Texas sage on the bottom left and the little leaf cordia. If you didn’t know the wolfberry was there, you wouldn’t even see it. Just the same, it provides food for hundreds of insects which in turn pollinate our gardens and serve as food for wildlife.

I hope I can continue to convince our homeowner’s association that it deserves to stay.

Bug of the Week: Scorpion in the Water Bowl

So, look who I found floating in the cats’ water bowl this morning.

How did it get there? The first guess is that it climbed in looking for water. Given that water bowl is glass and scorpions can’t climb glass, it doesn’t seem likely.

Guess two is the cat who likes to dip his “toys” in his water bowl caught the scorpion and decided to “wash” it. In any case, apparently scorpions aren’t good swimmers.

I recently saw a photograph of a grasshopper fluorescing under UV light. The photographer said he used a regular camera to capture the image. Ever since, I’ve been eager to give it a try. Because even drowned scorpions are known to fluoresce,  here was my chance.

I took the bowl with the scorpion into a windowless room and turned off the light. Then I turned on a UV light (blacklight). The scorpion glowed a greenish color. I used the “night mode” setting on my camera to capture the above photograph (I think I need to work on my method.)

Why do scorpions fluoresce when exposed to ultraviolet light? The current theory is that it is part of a chemical process in the scorpion’s “skin” that allows it to detect and avoid ultraviolet light. This makes sense because scorpions are active at night and hide under things away from the sun during the day.

Now if they could only avoid water…

Bug of the Week: Snail Lungs?

Have you ever looked closely at a snail shell?

The shell can be many colors, but it is usually opaque.

When I downloaded this photo, I was surprised to see the channels on the inside of the shell. Can you see the vein-like, branching structures I’m talking about?

Let’s zoom in:


It turns out that in young land snails like this one — with a thinner, more transparent shell — it is possible to see the interior vessels of the mantle and mantle cavity (lung).

In fact, if you look closely you might see some of the other internal organs, as well.

Cool!

Do you like snails? See our previous post about snails:

Snail Q and A and fiction picture book, Escargot

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