Trichopepla semivittata

variable, often with a tinge of pink, an unusual color for a Nearctic pentatomid They rarely occur alone and sometimes can be pretty numerous. The stripes and amount of light or dark brown can vary quite a bit, and I've even seen individuals with a decidedly pink tinge. They seem to feed on a variety of plants, mostly weeds. I have found large populations of T. semivittata in the autumn on Eryngo ( Eryngium leavenworthii , Apiaceae), at which time they were mating and laying eggs. Nymphs are brown with transverse stripes. In the spring, I've seen adults feeding on Poison Hemlock ( Conium maculatum , Apiaceae). ( 5 ) e.g.