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) .