The ornamental design for a bedbugdetectiondevice, as shown and described.
FIG. 1 is a perspective view of the device showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a left side view thereof (the right side view is identical to the left side view).
The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design.