I don’t recall seeing these beetles in as large of numbers as what we are seeing in east central IL this June. Their short front wings caused me to initially think they were rove beetles, but everything else just didn’t fit.
Soldier beetles are characterized by leathery wings and are given their common name due to the striped and outlined, orderly appearance of their markings, resembling the orderly appearance of soldiers’ uniforms.
Adults feed on nectar, pollen and an array of other arthropods. Larvae are generally carnivorous.