Electrical connector with complementary features on insulative housing and shielding member

An electrical connector, comprising:

• an insulative housing having a mating portion and a main portion extending backwards from the mating portion, the mating portion defining a mating cavity recessed in a front-to-back direction, the main portion having a receiving space depressed from a rear face thereof in a back-to-front direction;
• a terminal module fixed in the insulative housing, and comprising a first terminal module and a second terminal module cooperated with each other, the first terminal module defining a plurality of first contacting portions received in the mating cavity and the second terminal module defining a plurality of second contacting portions, the first contacting portions and the second contacting portions being opposite to each other along an up-and-down direction;
• and
• a shielding member surrounding the mating portion of the insulative housing;
• wherein the main portion has a pair of lateral walls on both sides of the receiving space, and the mating portion defines a pair of side walls on both sides of the mating cavity, the main portion further has a plurality of ribs extending forwardly from front ends of the lateral walls and a plurality of positioning slots, and every two neighboring ribs are spaced apart from each other in the up-and-down direction to form one positioning slot, the ribs are attached on the exterior side faces of the relative side walls, the shielding member is provided with a pair of side plates engaged with the positioning slots;
• at least one of the side walls is provided with a groove recessed inwards from an exterior side face thereof, and at least one side plate defines an elastic pushing arm scudding against the groove, the shielding member is assembled to the mating portion along a front-and-back direction to until the elastic pushing arm is caught by the groove.