author(s)
Dayang Louis Djakbe and Tamesse Joseph Lebel

abstract
From April 2011 to July 2015, in different localities of the Adamawa Region of Cameroon, prospections undertaken permitted to evaluate the biodiversity of psyllids of the Psyllidae family. This survey documented 14 species belonging to 3 subfamilies and 7 genera: Aphalaroidinae with Yangus genus (5 species), Ciriacreminae with Heteropsylla genus (1 species), Psyllinae with 5 genera, Palaeolindbergiella (1 species), Psylla (3 species) and 3 new genera (4 species). The proliferation period of each psyllid species depends on the phenology of the host plants. Host plants belong to three families, Fabaceae, Combretaceae and Rubiaceae. The Fabaceae family constitutes the most important one with the largest number of associated psyllids species. The damages caused by psyllids on their host plants are: distortion of leaves, rolling of leaves, discolouration and necrosis of leaves, development of galls. This study enriched the biodiversity of psyllids of the Psyllidae family from Cameroon in particular and Afrotropical in general.