The ornamental design for a plug in insecttrap with adhesive fan, substantially as shown and described.
FIG. 1 is a front and right side isometric view of a plug in insect trap with adhesive fan according to the present invention;
FIG. 2 is rear and left side isometric thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken line showing of portions of the plug-in insect trap with adhesive fan is included for the purpose of illustrating environmental structure and forms no part of the claimed design.