Figures 2–3 in A checklist of the sap beetle (Coleoptera: Nitidulidae) fauna of Indiana, with notes on effective trapping methods

Figures 2–3. Examples of trap designs. 2) Plastic "jug" trap baited with fermenting mixture hung from tree branch in an open wooded area. 3) Plastic "boat" trap baited with apple cider vinegar placed in the crotch of a large tree. The lid is propped open to allow attractant to spread but still shield the container from rain.