We claim the ornamental design for the combined insect trap and bait station holder, as shown and described.
FIG. 1 is a front, top and left side perspective view of the combined insect trap an insect bait station holder showing the new design, with a bait holder shown in broken lines and forming no part of the claimed design;
FIG. 2 is another front, top and left side perspective 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;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is another front elevation view thereof; and,
FIG. 10 is a cross sectional view of the design, shown along lines 10-10 of FIG. 9.