A revision of Caenodelphax Fennah (Hemiptera: Fulgoroidea: Delphacidae) to include species misallocated to Delphacodes Fieber

The delphacid planthopper genus Caenodelphax Fennah, 1965, although small, has a complicated taxonomic history. It currently consists of 4 species: C. teapae, C. nigriscutellata, C. atridorsum, and C. philyra, all previously assigned to Delphacodes Fieber, 1866. Hamilton (2002) redefined Caenodelphax in a broader sense than prior authors, and noted that 10 unspecified species belong in this genus. This study will revise Caenodelphax allied Delphacodes species with reference to morphological and molecular phylogenetic analysis and develop online resources for included taxa.