The male genitalia of 13 species from four genera of Astathini were described and analyzed. The result showed that five genital characters, such as shape of the apex of 8th abdominal tergaum and sternum, ratio of the ...The male genitalia of 13 species from four genera of Astathini were described and analyzed. The result showed that five genital characters, such as shape of the apex of 8th abdominal tergaum and sternum, ratio of the length of lateral lobes to tegmen, can be used to identify genera of Astathini; six characters, such as ratio of the length of lateral lobes to tegmen, ratio of the length of roof to lateral lobes, shape of the apex of ventral plate of median lobe, can be used to identify species in Bacchisa.展开更多
A new record species of genus Aegosoma Serville, 1832 is reported from China. The male genitalia of seven species from the genus Aegosoma are described and compared. The result shows that 16 genital characters, such a...A new record species of genus Aegosoma Serville, 1832 is reported from China. The male genitalia of seven species from the genus Aegosoma are described and compared. The result shows that 16 genital characters, such as narrow position of the apex of parameres, ratio of length and width of parameres, curvature of tegmen, ratio of spiculum gastrale and spiculum relictum, ratio of penis and tegmen, ratio of median structs and median lobe, curvature of penis, ratio of tegmen and parameres etc., can be used to identify species of Aegosoma. A key to Chinese species of Aegosoma is presented.展开更多
文摘The male genitalia of 13 species from four genera of Astathini were described and analyzed. The result showed that five genital characters, such as shape of the apex of 8th abdominal tergaum and sternum, ratio of the length of lateral lobes to tegmen, can be used to identify genera of Astathini; six characters, such as ratio of the length of lateral lobes to tegmen, ratio of the length of roof to lateral lobes, shape of the apex of ventral plate of median lobe, can be used to identify species in Bacchisa.
基金supported by the Science and Technology Basic Research Fund(2015FY21 0300)
文摘A new record species of genus Aegosoma Serville, 1832 is reported from China. The male genitalia of seven species from the genus Aegosoma are described and compared. The result shows that 16 genital characters, such as narrow position of the apex of parameres, ratio of length and width of parameres, curvature of tegmen, ratio of spiculum gastrale and spiculum relictum, ratio of penis and tegmen, ratio of median structs and median lobe, curvature of penis, ratio of tegmen and parameres etc., can be used to identify species of Aegosoma. A key to Chinese species of Aegosoma is presented.