Comparative Morphological Studies on the Male Genitalia of Pontia Fabricuis from Xinjiang

【Objective】 The structure of male genitalia of three species in Pontia Fabricuis was studied by traditional comparative morphology to provide strong support for the accurate identification and lay the foundation for the further research of speciation,population formation,and evolution. 【Method】 Three species of Pontia Fabricuis distributed in Xinjiang were selected for the comparative morphological study on male genitalia.These three species included Pontia edusa (Fabricuis),Pontia callidice (Hbüner) and Pontia chloridice (Hbüner). 【Result】 The male genitalia in Pontia Fabricuis, especially the structures of aedeagus,tegumen,uncus,valvae and saccus were quite different among the species which can be effectively applied to the identification of the Pontia Fabricuis in Xinjiang. 【Conclusion】 The difference of morphology and structure of male genitalia is obvious, which is an important basis for species identification, and provides a reference for the study of biological characteristics and ecology of butterflies.