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Bug of the Week: Bee Fly with a History

After being on the look out last week for flies, it wasn’t surprising that I spotted this one resting in the sun.

I knew right away what is was.

A fly with a fuzzy body and colored wings, it had to be a similar species to the illustration I have framed on my wall.

This illustration is by Edmund J. Detmold, who was born in 1883. On the print you can see his initials, EJD, in the corner.

Detmold did this illustration for Fabre’s Book of Insects in 1921. Jean Henri Fabre was a French entomologist known for his keen observations of insects and his poetic text. The last chapter of his book is devoted to the habits of “The Anthrax Fly.”

On the back of my framed version it says,

“The Anthrax Fly:  Her delicate suit of downy velvet, from which you could take the bloom by merely breathing on it, could not withstand the contact with rough tunnels.”

The fly in the picture is a bee fly of the genus Anthrax. These flies usually lay their eggs in bee or wasp nests, which are the tunnels from the quote. Their larvae are for the most part parasites of bees and wasps.

You can see more photographs of bee flies in the genus Anthrax at BugGuide.

Sometimes discovering an insect can feel like discovering a bit of history.

A translated version of Fabre’s Book of Insects is still available from Dover Publications, although Detmold’s illustrations are not included.

Seed of the Week: Desert Mallow

Our mystery seeds from last week came from plants called desert mallow or desert globemallow, which are actually several species in the genus Sphaeralcea.

Desert mallows are low-growing shrubs native to the southwestern United States. They do well in arid conditions, requiring relatively little water to survive.

The flowers vary from pale pink to deep orange to almost red. Firefly Forest has photographs showing the variety of  desert mallow flower colors and also information about how to identify some of the different species. One species, Fendler’s Globemallow, looks a lot like its hollyhock relatives.

Desert mallows are relatively short-lived perennials, but they do self-seed readily. The ones in our yard were likely planted by birds or the wind.

If you are thinking of using desert mallows in your landscape, keep in mind is that the leaves are coated with tiny hairs that can irritate the skin and eyes if handled. I usually use gloves when working with them.

Here is a short video that shows more of the plant.

Where have you found desert mallows? Do they grow where you live?

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