Category: Bug of the Week (Page 217 of 219)

Bug of the Week: Super Fly

Stalking the wild insects in my garden this morning, I was surprised to find these tiny bugs on my asparagus fern. Do you know what they are? I’ll give you some hints. They like cool weather, they tend to build up quickly on the growing tips or buds of plants, and lady beetles love them.

aphids

I also found this fly hovering nearby. At first I thought it was a flower fly (Family Syrphidae). Flower flies lay their eggs near aphids (yes, those are aphids). Their larvae eat aphids, and I find them all the time on infested plants. But flower flies tend to have a shorter, wider abdomen (that is the back section in insects), and mimic bees. I think this one is a thick-headed fly instead (Family Conopidae), because it has a thin waist more like a wasp. One way I can tell she isn’t a wasp is the fact she has two wings. Wasps have four.

thickheaded fly

She was definitely laying eggs, as you can see here.

fly

Where do you go to identify unknown insects like this one? One great place to start is whatsthatbug.com.

By the way, I don’t need to control these aphids, because they will be gone soon. I spotted flower fly larvae and parasitic wasps already at work. For now they are providing some entertainment and drama in the backyard jungle.

Bug of the Week: Praying Mantis

Most of you probably recognize this little insect as a praying mantis. But can you tell how small it is? The milkweed flower bud next to it is roughly 1/3 inch long.

The praying mantis is looking for an insect to eat. As it eats and grows, it will shed its exoskeleton or outer “skin.” Unlike some insects that change a lot when they grow, the mantis will stay about the same. The biggest change will be that it will have wings when it becomes an adult.

Notice the triangle-shaped head with the large eyes. Those eyes could definitely see me trying to take its picture. It kept hiding behind the flower buds, so I had trouble getting a good photo.

Also notice the front legs tucked up under its body. The praying part of the mantis name comes from that posture. It actually uses those legs to grab prey.

praying mantis nymph

Assassin Bug Nymph

What an odd-looking creature I found on my desert milkweed flower this week. It is bright orange with striped legs. Look at the black spines on back end (abdomen). It also seems to have its straw-like beak piercing a black insect.

This insect is a young assassin bug, a stage called a nymph. If it were an adult, it would have wings.

Assassin bugs use their front legs to capture other insects for food. They stick their proboscis or beak into their victim and suck out the juices. In this case the nymph has caught a tiny parasitic wasp. The wasp was probably searching for aphids, which is what its larvae use for food.

assassin bug nymph

Edit:  I was able to find an adult to show in this later post.

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