Abstract: An electrical connector assembly includes a male connector housing having shafts projecting from its opposite side walls respectively. A locking hood is mounted on the shafts to be rotatively moved about them between a lying state that it lies along the top of the male connector housing and a rising state relative to the top of the male connector housing. The locking hood has on its distal end a cam projection lifted up with insertion of a female connector housing into the male connector housing. In a temporary latching state of the connector housings, the cam projection is engaged with a cam block of the female connector housing so that the female connector housing is displaced. The rear end of the locking hood extends obliquely downwardly to provide an elastic member. When the locking hood is rotatively moved to rise up, the elastic member abuts against the top of the male connector housing to elastically deform, urging the locking hood to the former state.