Male Genitalia of five species of Cletus Stal (Hemiptera: Coreidae) from India

External male genitalia of five species of genus Cletus Stal viz., C. bovillus Distant, C. trigonus (Thunberg), C. bipunctatus (Westwood), C. punctulatus (Westwood) and C. punctiger (Dallas) collected from North India have been compared. A key for these species on the basis of male genitalia is also given.