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Bug of the Week: Sneaky Geometrid Moths

It’s too windy today for a fresh photograph, so let’s look at some moths from the archives.

Some moths are good at camouflage.

As you might imagine, the brown moth above would be completely hidden on the bark of a tree.

Other moths don’t appear to use camouflage.

For example this white-winged large lace-border, Scopula limboundata stands out against the dark green background. It is not blending in.

So, is this moth in disguise?

It sits completely still on dark green vegetation with its wings outstretched. Nothing could be more obvious.

Maybe from this direction the coloration makes more sense. Doesn’t it look like a dead leaf?

The patterns do look a bit like leaf veins. What do you think?

These moths belong to the family Geometridae. Their caterpillars can also be masters of disguise.

“Nothing to see here,” the caterpillar says.

Bug of the Week: Rover Ants

Because I have an entire blog devoted to ants, I don’t talk about them here often.

Let’s make an exception for the tiny dark rover ants visiting brittlebush flowers this week.

The ants are collecting nectar, like other insects do when they visit plants.

I keep an eye on these little guys because they aren’t from Arizona. They are native to South America, particularly Argentina and Paraguay. They were first seen in the U.S. around 1978.

We often find dark rover ant nests in flowerpots, which mean it is easy to move them from place to place accidentally.

I sometimes discover rover ants at the tops of tall plants. I wonder how they manage to find their way to such heights. Imagine what the world must look like to something this small.

 

 

 

Bug of the Week: Honey Bees in Rosemary Flowers

Rosemary plants grow well here in Arizona.

This time of year, the shrubs are covered with delicate light blue or purplish flowers.

The honey bees visit the flowers in a constant stream of activity.

After watching the bees for a few minutes, you begin to notice the bees have a light-colored dusting of pollen on the back of their head and thorax.

It looks like they’ve been sprinkled with wheat flour.

Where is it coming from?

To answer that question, check out the structure of the rosemary flower up close. See those “antlers” sticking out of the top of the flower? The ones with the deep purple pads on the ends are the stamens. The purple pads are the anthers, where the pollen is released.

When the honey bee sticks her tongue deep into the throat of the rosemary flower to suck up the nectar at it’s base, the stamen catches her on the back of her head and thorax. Like a pad full of powder, the anther dusts her with pollen.

Note:  the photographs are a bit blurry because the honey bees were visiting each flower for only seconds at time.

Have you ever seen a flower dust pollen onto a honey bee?

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