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Photo#1532089
Larvae actively dragging along a cylindrical shell up a vertical stucco wall.
Copyright © 2018 David Thornburg

Larvae actively dragging along a cylindrical shell up a vertical stucco wall.
Cottonwood 34.688318 -112.051444 elevation 4080 ft., Yavapai County, Arizona, USA
June 6, 2018
Size: about 3mm
The larvae house is thin and brittle, and the rim is pottery like. The larvae moves it quite rapidly on a flat surface. The inside of the tube is clean. Just wondering how this was constructed and how the critter grew inside the open ended tube.

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Larvae actively dragging along a cylindrical shell up a vertical stucco wall. Larvae actively dragging along a cylindrical shell up a vertical stucco wall. Larvae actively dragging along a cylindrical shell up a vertical stucco wall.
Contributed by David Thornburg on 6 June, 2018 - 5:03pm
Last updated 7 June, 2018 - 7:06pm

Moved
Moved from ID Request.

This is a case-bearing leaf beetle (Cryptocephalinae). The case is mostly made of the larva's frass; the larva adds to it as it grows.
… Charley Eiseman, 7 June, 2018 - 7:06pm

 
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Most interesting explanation!
… A. Hendrickson, 7 June, 2018 - 10:10pm

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