Male and female identification of scorpion

Scorpion is female and androgynous, and the difference between the two sexes is obvious, mainly in the following aspects:

(l) the female scorpion is longer than the male scorpion, and the male scorpion is about 4. 8 cm, while the female scorpion grows at 5. More than 2 centimeters.

(2) the pincers of the female scorpion's tentacles are thin and long, the ratio of the length of the movable finger to the width of the metacarpal segment is 2.5 and 1.0, and that of the male crab is thick and short, and the ratio of the length of the movable finger to the width of the metacarpal segment is 2.1 Rau 1.0.

The main results are as follows: (1) the base of the movable finger of the tentacle is different, and the inner edge of the male scorpion is obviously raised, but the female scorpion is not obvious.

(4) the trunk width of the female scorpion is more than 2. 5% of the tail width. 0 ~ 2. 5 times, while the male scorpion is less than 2 times.

(5) the lower edge of the chest plate of female scorpion is wider, while that of male scorpion is narrower.

(6) the fecundity of female scorpion is softer and that of male scorpion is harder.

(7) the number of pectinate teeth of female and male scorpion is different, male scorpion is generally 21, female scorpion is 19.