Pmac can be found from Quebec to Florida, from New England to the Pacific. While more common in southern areas of the US, the predator can be readily found in any number of crop and non-crop environments in the Midwest.
Predators spend the winter as adults hiding in leaf litter in woods around fields.
Adults begin emerging around mid-April in Indiana. There are 1-3 generations per year. The predator is one of a number of generalist predators that help to keep pest population low in crops such as alfalfa, soybeans and fruit crops. Occasional, the Spined Soldier bug enjoys a little salad with their meat, by sucking on plants to obtain moisture. 25-30 days to become an adult.