American Snout
(Libytheana carinenta)
American Snout sightings, by week (about)
Click to enlargeCherokee Marsh, Madison, WI. July 28, 2006.
Click to enlargeCherokee Marsh, Madison, WI. July 28, 2006.
The American Snout is one of the few butterflies that even though you have never seen it, if you are aware of its existence, you will immediately be able to identify it because of its uniqueness. Members of the Snout family have enlarged palpi that look very much like a snout. This species probably replenishes itself in Wisconsin each year from farther south. This species is known to have huge migrations and in the southwestern United States and Mexico it may become so abundant that the butterflies literally darken the sky.
Identifying characteristics: The most distinguishing characteristic is the extra long palpi that resemble a snout. The sexes are essentially the same with the upper surface somewhat brownish with central orange splotches on both wings and several white spots near the forewing tips. Below it resembles a dead leaf with various shades of gray and brown. Orange patches may be seen on the forewing below if the wings are more open. Notice in the photo on the right, this is not evident.
Similar species: None in Wisconsin.
Habitat: The American Snout prefers wooded areas where Hackberry, the larval host plant is found.
Flight: At least two generations a year possible. This species migrates north each year in May or June and may become established and rear at least a second brood.
Abundance: Not common in Wisconsin, but more common in the southern part of the state where its host plant, Hackberry is found.
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American Snout
Libytheana carinenta