| Erannis jacobsoni | |
|---|---|
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| Larva | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Geometridae |
| Genus: | Erannis |
| Species: | E. jacobsoni |
| Binomial name | |
| Erannis jacobsoni Djakonov, 1926 | |
| Synonyms | |
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Erannis jacobsoni, or Jacobson's spanworm, is a moth of the family Geometridae. The species was first described by Alexander Michailovitsch Djakonov in 1926. It is found in Europe (Russia: eastern Siberia, the Russian Far East and western Siberia) and Asia (China: Nei Menggu, Japan: Hokkaido, Honshu and Shikoku, Kazakhstan and Mongolia).
The larvae feed on Larix species, including L. gmelinii and L. sibirica.
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