The Spear-marked Black Moth is a boldly patterned geometrid with jet-black wings crossed by irregular white bands and streaks. Its contrasting pattern is thought to make it difficult for predators to judge distance or trajectory in flight. The inchworm caterpillar is pale with dark banding and feeds primarily on alder in moist forests.
Best time to see a Spear-marked Black Moth
The best time to see a Spear-marked Black Moth is June–July, when about 92% of U.S. sightings happen, based on 653 research-grade iNaturalist observations.
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Recent Spear-marked Black Moth sightings near you
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