Ironclad Beetles & others

Description

The family Zopheridae has no common name; it has grown considerably in recent years. Previously, the Ironclad Beetles of subfamily Zopherinae were considered to be the entire family, but now there are up to 6 subfamilies depending on the author.

Ironclad beetles are so named for the incredible durability of their exoskeletons - some of the hardest of all arthropods. It can be genuinely difficult to crush or pierce an ironclad beetle, and they have been reported to survive being run over by cars. However, I strongly advise against testing the durability of living specimens.

Species

Zopherus nodulosus haldemani

"Texas Ironclad Beetle"

Description

Large, long-bodied beetle. Legs are robust and uniformly black. Carapace is white with randomly arranged black spots, concentrated in the center. Spots vary in size and tend toward hexagonal shape.

Notes

Variously considered a subspecies or a separate species, this specific Ironclad beetle is found only in Texas. They are thought to feed on lichens and can be found on tree trunks.

Images of Texas Ironclad Beetle

Click to embiggen
This Texas Ironnclad Beetle was found motionless (but alive) on a tree trunk in cold weather. Notice the distinctive pattern and the visible black "nodules".
Click to embiggen
A close-up view of the head of this Zopherus nodulosus haldemani, illuminated by headlamp.
Click to embiggen
Another full-body angle of this exquisite Z. n. haldemani, roughly 1 inch in length.