Synonyms: Microphylellus modestus; Stenodema aestivalis; Stenodema autumnalis (heterotypic); Stenodema fuscescens (heterotypic); Stenodema nigrescens; Stenodema pallescens (heterotypic); Stenodema praecox; Stenodema pulla; Stenodema quadrispinosa; Stenodema reducta; Stenodema trispinosa nigrescens; Stenodema trispinosum; Stenodema trispinosum aestivalis; Stenodema trispinosum autumnalis; Stenodema trispinosum fuscescens; Stenodema trispinosum pallescens; Stenodema trispinosum praecox; Stenodema trispinosum pulla; Stenodema trispinosum quadrispinosa; Stenodema trispinosum reducta; Stenodema trispinosum virescens; Stenodema virescens (heterotypic)