Isometopus Fieber, 1860

Cephalocoris Stein, 1860: 79 (as new genus). A junior homonym of Cephalocoris Heer, 1853 (fossil Heteroptera).

Type species: Acanthia intrusa Herrich-Schaeffer, 1835 from Austria, Distant 1904: 484 by subsequent designation.

Isometopus Fieber, 1860: 259 (as new genus); Schuh 1995: 8–10 (catalogue); Akingbohungbe 1996: 38–86 (review of European and African species); Schuh 2002 –2013 (online catalogue).

Type species: Acanthia intrusa Herrich-Schaeffer, 1835 from Austria, by subsequent designation.

Turnebus Distant, 1904: 485 (as new genus). Synonymized by McAtee & Malloch 1924: 76.

Type species: Turnebus cuneatus Distant, 1904: 485 from Pundaluoya, Sri Lanka, by original designation; monobasic.

Skapana Distant, 1910: 315 (as new genus).

Type species: Skapana typica Distant, 1910, from Borneo, by monotypy. Synonymized by McAtee and Malloch 1924: 76.

Magnocellus Smith, 1967: 27 (as new genus). Synonymized by Akingbohungbe 1996: 38.

Type species: Magnocellus wacriensis Smith, 1967 from Ghana, by original designation.

Diagnosis. Recognised by the broadly ovate body; the short, flat head; the frons lacking a flange-like hood; the ocelli placed near to eyes on vertex, relatively widely separated by a distance less than three times their diameter in males and less than five times their diameter in females; the antennae originating on the ventral margin of the head; the membrane with a single cell; and the two-segmented tarsi.

Distribution. Widely distributed in southern Europe, the Middle-East, Far East, Africa, and Asia, including India, Japan, Korea, and Sri Lanka (Akingbohungbe 1996).

Five species are known to occur in India.

Note. Kerzhner & Josifov (1999) in their catalogue indicated that Turnebus Distant and Skapana Distant were not synonyms of Isometopus, but did not give reasons why. Akingbohungbe (1993) recognized two subgenera, Isometopus Fieber and Jehania Distant (type species: Jehania mahal Distant, 1911).