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| Nemoria caerulescens larva, final
instar. Parent female collected Rio Arriba Co., NM, 22 June 2007 |
Nemoria caerulescens larva |
| Nemoria caerulescens larvae
generally resemble the larval form of
Nemoria bistriaria or
N. bifilata, which Ferguson
grouped with caerulescens on the base of genitalic similarities.
The natural host plant remains unknown. The larvae we reared would not
feed on Rhus trilobata nor on oak leaves, even those from
native Quercus gambelii found in the region where adults
have been collected. They fed slowly at first on exotic oak
catkins, though no oaks are in flower at the time that eggs are laid so
this is not a possible natural food source. Larvae would not feed on
numerous plants that are documented as host plants or have been used to
rear other Nemoria species. Larvae rejected several Polygonaceae including an
Eriogonum species and also rejected Vaccinium,
Juniper, Salix and several Rosaceae. |
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