Small but mighty, the Two-Marked Treehopper is an able jumper and flier moving from branch to branch on trees and plants.
Treehoppers are a plant-sucking insect that has the ability to leap far and fast. This is a fantastic escape maneuver when threatened by a predator. The movement is so quick, it is often impossible to tell which direction it went. Two-Marked Treehoppers are no exception. They are black/brown and have two yellow marks along the dorsal midline (spine). One mark is longer than the other. This species also has a long horn near the head. It is an extension of the pronotum (shoulder area).
Two-Marked Treehoppers can be a pest. They weaken plants with their consistent feeding from the stems and leaves. This leads to browning and death. The treehopper can also secrete a sweet sticky substance called honeydew. This attracts other insects and can promote mold growth that looks like a black soot or ash.
Popultions of Two-Marked Treehoppers are host specific, yet each seems to feed on a different plant making interactions between populations a bit complicated. They are able to travel to other areas and if they encounter another Two-Marked Treehopper that has always fed from a different plant, the likelihood of the two reproducing greatly diminishes. It's not impossible that the two will mate, just less probable than if a male and female on the same diet would meet.
Additional references: University of Missouri, Department of Biological Sciences 2008 (McNett and Cocroft)
Scientific Name: Enchenopa binotata
Other Name(s): Thorn Bug
Cicada and Planthopper
Size (Adult; Length): 7mm to 9mm (0.27in to 0.35in)
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.