Adama (Zinjella) Linnavuori & Al-Ne’amy, 1983

Xu, Deliang & Zhang, Yalin, 2023, Taxonomy of the leafhopper genus Adama (Hemiptera: Cicadellidae: Deltocephalinae: Selenocephalini: Adamina) with description of a new species from Botswana, Zootaxa 5361 (4), pp. 579-584 : 580

Subgenus Adama (Zinjella) Linnavuori & Al-Ne’amy, 1983

Adama (Zinjella) Linnavuori & Al-Ne’amy, 1983: 29

Type species: Distantia maculithorax Jacobi, 1910 , by original designation.

Diagnosis. Crown with broad black band and black spot next to each eye; frontoclypeus with conspicuous black anterodorsal margin; anterior margin of pronotum with black spots in transverse row; head approximately as wide as pronotum or wider than pronotum; anterior margin of head with numerous irregular carinae and distinct sulcus; fore femur with several additional nearly ventral macrosetae; connective Y-shaped, stem articulated with long pseudostyles.

Distribution. Afrotropical region.

Remarks. Adama includes four subgenera and their external morphology is similar. However, they can be distinguished by the following characters: crown with fore margin broadly parabolic or nearly foliaceous, thinner than in other subgenera, pseudostyles usually recurved mesally and crossing each other apically in Adama (Adama) ; crown much shorter in Adama (Zinjella) , Adama (Paracostemma) and Adama (Krisnella) . Head narrower than pronotum, face with frontoclypeus narrow in Adama (Krisnella) ; head at least as wide as pronotum, face with frontoclypeus strongly broadening upward in Adama (Zinjella) and Adama (Paracostemma) . Connective U-shaped, fused to pseudostyles in Adama (Paracostemma) ; connective Y-shaped, articulated with pseudostyles in Adama (Zinjella) .