The ornamental design for an insecttraphousing, substantially as shown and described.
FIG. 1 is a bottom, front and right side isometric view of the insect trap housing according to the present invention;
FIG. 2 is a top, front and left side isometric view of the insect trap housing of FIG. 1;
FIG. 3 is a top and rear isometric view of the insect trap housing of FIG. 1;
FIG. 4 is a top plan view of the insect trap housing of FIG. 1; and,
FIG. 5 is a bottom plan view of the insect trap housing of FIG. 1.
The broken lines are for illustrative purposes and represent environmental structure and unclaimed portions of the invention and therefore form no part of the claimed design.