Alaskan Peninsula and Aleutians Region: Popof Island

Trevor Kincaid observed the special adaptations of many insect species found here. Arctophila flagrans, unrelated to the common bumblebee, exhibited mimetic morphology -- meaning it looked a great deal like the stinging bumblebee, and therefore was avoided by predatory birds that otherwise might eat it. Tipula septentrionalis was noted to be short-winged, an adaptation to the high winds of the island.


Alaska insects collected by the Harriman Expedition. Figure 9 shows the adaptive short wings of Tipula septentrionalis.