Gall-inducing jumping plant-lice of the Neotropical genus Baccharopelma (Hemiptera, Psylloidea) associated with Baccharis (Asteraceae)

The genus Baccharopelma ( new replacement name for Neopelma Burckhardt, 1987 nec Sclater, 1860; and for its replacement name Burckhardtia Straube and Miretzki, 1999 nec Frech, 1907 nec Brown and Hodkinson, 1988) is revised to include five named species and possibly two undescribed species. The junior homonym Burckhardtia Brown and Hodkinson nec Frech is replaced by Hodkinsonia nom. n. The introduction of the two generic replacement names necessitates two new combinations. Four species are described as new. Keys for the identification of adults and the last instar larva are provided along with species diagnoses and illustrations of taxonomically relevant structures. The galls and known biological features are briefly discussed for each species and the phylogenetic relationships among the species are analysed. Baccharopelma spp. are monophagous on Baccharis spp. ( Asteraceae) on which they induce galls. The temperate South American genus has one species restricted to Chile, three to Brazil and one occurring in Argentina, Brazil and Paraguay.