Portion of the body posterior to the legs in a tick or mite.
Abdomen - one of the three main body parts of an insect and one of the two main body parts of spiders.
the abdomen of the scorpion, consisting of seven mesosomal and five metasomal segments. The opisthosoma also bears the genital pore and opercula (1st segment), the pectines (2nd segment), and four pairs of book lung openings on the sternites.