| Species and also genera of araneomorph spiders are usually separated by specializations of the female epigynum and male pedipalp. |
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| The defensive movements, on the other hand, involve the whole of the pedipalp being drawn in towards the midline. |
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| Successful copulation among spiders requires the pedipalp located on the right side of the male's abdomen to align with the female orifice located to her right and vice versa. |
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| In most groups, after a male has successfully approached a female and mounted her, he inserts his left pedipalp into the left opening of her genital structure and the right pedipalp into the right opening. |
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| Pedipalp chela dilated, with a lobe at the base of the movable finger, corresponding to a notch in the fixed finger. |
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