Abstract: The present invention is an arthropod trap including a housing and containment chamber. The housing includes external openings, an overhang, and an internal tube and plate with entry ports. Attracted by bait in the containment chamber, arthropods fly in through the external openings, and then travel through the entry ports in the plate into the containment chamber. Alternatively, arthropods can directly enter the containment chamber through optional entry ports. The containment chamber can be a box or other rigid container, or a bag. This trap can be used to contain or monitor the populations of many different types of flying arthropods, including but not limited to flies, wasps, and yellow jackets.