990495n –
19495 Lymantria umbrosa
(Butler, 1881)
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| Distribution: |
Japan, and the Kuril Islands, Russia; not found in North America north of Mexico. |
Seasonality
and Size: |
Male forewing length ranges 18-25mm, females ranges 20-30mm |
Larva and
Host Plants: |
Larvae range 18-20mm long and are polyphagous on representatives of the Aceraceae (maple), Betulaceae (alder, birch, hornbeam) Fagaceae (oak), Moraceae (mulberry), Pinaceae (fir, larch), Rosaceae (plum, peach, raspberry, rose), Salicaceae (poplar, willow), and Ulmaceae (elm). |
| Genitalia: |
Male and female genitalia are indistinguishable from L. d. dispar or L. d. japonica Genitalic illustrations provided by Mike Pogue, from Pogue and Schaefer (2007) |
| Similar Species: |
- Forewing markings similar in appearance to L. d. japonica and are less distinct than in L. d. dispar; hindwing of L. umbrosa with more white than either of the two aforementioned species. Pogue and Schaefer (2007) describe L. umbrosa females as having a more “rufous cast to the longer scales of the wings and body” with “fewer forewing markings than either L. d. dispar or L. d. japonica”. Male and female genitalia are indistinguishable from aforementioned species. Genitalic illustrations provided by Mike Pogue, from Pogue and Schaefer (2007)
- Pinned specimens of related species. (Hint: select View by Region on the related species page.)
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| Synonymy: |
Porthetria umbrosa Butler 1881
L. dispar praeterea von Kardakoff, 1928
L. dispar umbrosa Matsumura, 1933
L. dispar hokkaidoensis Goldschmidt, 1940
L. dispar nesiobia Byrk, 1942 |
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| References |
- (1) Pogue, M.G., and Schaefer, P.W. (2007). A review of selected species of Lymantria Hubner [1819] including three new species (Lepidoptera: Noctuidae: Lymantriinae) from subtropical and temperate regions of Asia, some potentially invasive to North America. Forest Health Technology Enterprise Team.
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Photographs are needed for this species. |
