How to Tell Male and Female Scorpions Apart? A Detailed Guide to Sex Identification Methods

 Scorpions are dioecious (separate sexes), and the differences between the sexes are fairly obvious, mainly shown in the following aspects:

(l)Female scorpions are longer than males; males have a body length of about 4 . 8 cm, while females have a body length of 5 . 2 cm or more.

 (2)In female scorpions, the pincers of the pedipalps are slender and long, and the ratio of the length of the movable finger to the width of the manus is 2.5：1.0; in male crabs the pincers of the pedipalps are thick and short, and the ratio of the length of the movable finger to the width of the manus is2.1：1.0。

（1）       The base of the movable finger of the pedipalp differs: in male scorpions this area has a distinct bulge on the inner edge, while in females it is not obvious.

 ( 4 )The trunk width of female scorpions exceeds the tail width by 2 . 0 ～ 2 . 5 times, while in males it is less than 2 times.

 ( 5 )The lower edge of the sternum (pectinal plate area) is wider in female scorpions and narrower in males.

 ( 6 )The genital operculum of female scorpions is softer, while that of males is harder.