Thick-headed Fly

Physoconops sp.

A Thick-headed Fly, Physoconops, photo © by Mike Plagens

Observed at Sycamore Canyon on the west side of the Mazatzal Mountains, Maricopa Co., Arizona, USA. 16 May 2010. The immature stage is a parasite, possibly of a bee.

Sponsored Links:

A naturalist who takes the effort to observe and learn about these colorful insects that can be found visiting flowers for nectar, should come away with a sense of awe. To find that an insect has a wasp-disguise so precise. A precision designed by evolution over tens of millions of years as sharp-visioned insectivores ate the would-be ancestors with less-than-convincing habits and colors. Now the best wasp look-alikes can quietly sip nectar as birds and lizards choose not to get stung - even though this fly cannot sting at all. The behaviors of all conopids are among the most unusual in the insect world.

Conopidae -- Thick-headed Fly Family

More Information:

Sponsored Link:

Arizona Naturalist
Sycamore Canyons
Invertebrates in Arizona's Sycamore Canyons


Copyright Michael J. Plagens, page created 8 March 2012