Nine Ohio field crickets were captured using jars; 6 females and 3 males. Female crickets are easily identify by their ovipositor or egg layers protruding out their back between two feelers called cerci, circled in red. The males have cerci, but no oviposition and they are a smaller than females, circled in blue. A juvenile male cricket was also captured, circle in yellow. Cricket are usually not see, because they hide, however the white sand fill with no place to hide in the bottle makes them easy to study. Wild field crickets are much more active than domesticated crickets sold in the pet store. Nine crickets is probably more than needed to study crickets. Maybe a couple male and female would be sufficient.