A fruit (seedhead) of puncturevine, Tribulus terrestris, with roundish emergence holes of adult puncturevine seed weevils, Microlarinus lareynii, with an adult beetle partly visible inside the top hole.

A fruit (seedhead) of puncturevine with roundish emergence holes of adult puncturevine seed weevils with an adult beetle partly visible inside the top hole. Credit: Eric Coombs, Oregon Department of Agriculture, Bugwood.org<br />Licensed under a <a href="https://creativecommons.org/licenses/by/3.0/us/">Creative Commons Attribution 3.0 License</a>
Credit: Eric Coombs, Oregon Department of Agriculture, Bugwood.org
Licensed under a Creative Commons Attribution 3.0 License