Comprising the families Acanthosomatidae, Scutellaridae, Cydnidae, Thyreocoridae and Pentatomidae, shieldbugs comprise one of the most easily recognised groups of true bugs (Hemiptera, Heteroptera). About 43 species have been recorded for Britain and Ireland but a high proportion has a southern and eastern distribution. In common with several other insect groups responding to warming temperatures (Stewart...