Various embodiments of bed bugs detectors are shown having a housing with a first sloped surface and a second sloped surface. The first sloped surface can be disposed about at least part of an exterior of the housing, and the second sloped surface can be disposed to define a perimeter of a trap. The detector can include one or more lures that are configured to attract bed bugs. The first slope surface can have one or more channels configured to direct a flow of carbon dioxide to an exterior of the detector.