Category: nature (Page 14 of 27)

Bug of the Week: Z the Fruit Fly

Ever wondered where something like “Bug of the Week” might lead? Sure it is fun, but can anything really useful come out of checking the insects in your back yard once a week? It turns out some very cool things can result from regular bug watching.

A few weeks ago when I was looking at the fruit flies in my yard, I found something I didn’t recognize. I sent it to a friend of mine at the University of Arizona to identify.
Take a look:

zaprionus fruit fly
When I looked through my camera lens I saw this fruit fly with incredible white stripes that almost glow florescent, they are so bright.

My friend identified it as Zaprionus indianus, a fruit fly native to Africa, the Middle East, southern Europe and southern Asia.  This species was first found in the Americas in 1998 when it was reported from São Paulo, Brazil. It just arrived in Arizona within the last year or so. I call it “Z” because of the genus name and its fancy zebra stripes.

zaprionus fruit fly

Here is a photo of Z under a powerful microscope:

zaprionus fruit fly

I’ll be keeping a good eye on Z to find out what it likes to eat and how many are around. Right now it hangs out with the other fruit flies in the compost heap.

You never know when you might meet some new insect neighbors, if you just go out and look.

Bug of the Week: Another Lacewing Larva

Lacewings are pretty common in Arizona and I found another lacewing larva last week. (Check previous posts about the life cycle of lacewings).

lacewing larva

This lacewing was walking on the silk cocoon of a moth. You can just see the outline of the pale green moth pupa under the white strands of silk of the cocoon. I think the lacewing larva was trying to get inside, without much luck.

lacewing larva

See its long jaws? I think it might be the larva of a brown lacewing, rather than a green lacewing, because it looks a bit different. The brown lacewing adult has brown wings, hence the name.  They aren’t as fragile-looking as the green lacewing and we tend to find them more often in the colder months.

Bug of the Week: Lacewing Revisited

When we looked for insects today, we found some insect eggs on our lemon leaves. What are they?

Lacewing Life Cycle

Can you see the egg? It is the white oval on the hair-like stalk.

lacewing egg

The insect that laid this egg was featured as “Bug of the Week” early on. It is the beautiful green lacewing adult.

green lacewing
The egg has actually hatched, because it is white and the end is open. The lacewing larva that crawled out probably looks something like this on I found on June 18.
green lacewing larva

When the larva has finished development, it spins a cocoon around itself, forming what looks almost like a spider egg case. In fact, I’m sure a lot of green lacewings are destroyed each year due to mistaken identity.

My son and I found this lacewing cocoon underneath a bird’s nest that fell out of a tree last week.

green lacewing pupa

The green lacewing is a beautiful, beneficial insect that goes through a lot of changes during its life cycle.

For more information for kids, try:

Nature Close-Up – Ant Lions and Lacewings  by Elaine Pascoe


Disclosures: The book was from our local library. Also, I am an affiliate for Amazon. If you click through the linked titles or ads and make a purchase, I will receive a small commission at no extra charge to you. Proceeds will be used to maintain this self-hosted blog.

« Older posts Newer posts »