Friday Beetle Blogging: Spider Beetle

Gibbium sp. Spider Beetle, Arizona

Gibbium sp. Spider Beetle, Arizona

Spider beetles are not predators like their namesakes but are instead pests of stored grain.  I was surprised at how difficult they were to photograph.  Their round bodies were hard to fit into a single focal plane, while their reflective elytra were prone to harsh glare.  I could not do much about the first problem, but the lighting was solved by placing the beetle inside a white box and firing an off-camera strobe into the box but away from the beetle.

Gibbium sp., Arizona

Gibbium sp., Arizona

photo details (both images): Canon MP-E 65mm 1-5x macro lens on a Canon EOS 20D

ISO 100, 1/250 sec, f/13, indirect strobe fired into white box

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I'm intrigued by the fine, dense, rust-colored pilosity covering the appendages - I didn't realize they had this (maybe just this species). Of course, I've never seen such a detailed macrophotograph of one either - nice shot.

regards--ted