Figure 2 from: Freeman J (2011) Tabanidae and other Diptera on Camel's Hump Vermont: Ecological Observations. ZooKeys 147: 559-576. https://doi.org/10.3897/zookeys.147.1989

Figure 2 - Figure 2. Canopy trap in Hut Clearing. Elevation 1158 m. Lower black part of trap changes bright reflection at right to a more "flat" black at left with a 90 degree turn of polarizing filter on camera lens. Photo here is from opening as Long Trail enters from the north. The Hut Clearing is a four-way junction of trails on Camel's Hump and a convenient place for a trap, fully visible to flies.