Revised taxonomy of Temognatha duponti (Boisduval) and T. stevensii (Gehin) (Coleoptera: Buprestidae: Stigmoderini), with definition of the grandis and stevensii species-groups

The nominal species Temognatha duponti (Boisduval, 1835) and T. barbiventris (Carter, 1916) are considered conspecific. The specific name barbiventris (Carter, 1916) syn. nov. is a subjective synonym of the name duponti (Boisduval, 1835). The nominal species Temognatha stevensii (Gehin, 1855) is not considered conspecific with Temognatha duponti (Boisduval, 1835). The specific name stevensii (Gehin, 1855) is revalidated as the name of the species Temognatha stevensii (Gehin, 1855). The specific name tibialis (Waterhouse, 1874) is a subjective synonym of the name stevensii (Gehin, 1855). The prevailing usage (ICZN, Article 33.3.1) of the name stevensii over stewensii is preserved for the species Temognatha stevensii (Gehin, 1855). Both valid species are diagnosed/redescribed and illustrated, and their relationships, biology and distributions are discussed. Complete synonymies and references, and photos/illustrations of some diagnostic head, elytral and genitalic structural features, are also provided. The Temognatha grandis and T. stevensii species-groups are defined. Lectotypes are designated for Buprestis duponti Boisduval, 1835 and Stigmodera tibialis Waterhouse, 1874.