4 mi. W. Winnsboro, Wood County, Texas, USA May 17, 2016 Size: ~ 10 mm
Came to U/V lights at night. Believe this Hydrophilid is a Tropisternus collaris? Confirmation/correction, and further placement would be appreciated. Towards the rear of the elytra has some mud residue.
Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.