Sawfly larvae look like caterpillars but they are actually the larvae of primitive wasp-like insects.
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Dogwood Sawfly Larvae on a dogwood (middle instar stage) (7/17/2020) (Photo courtesy of Susan; Monroe, ME) (compare with adjacent photos of the final two instar stages which are very different)
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Dogwood Sawfly Larvae (nearing the final instar stage) (Naples, ME; 8/28/2023) (Photo courtesy of M. Shepard)
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Dogwood Sawfly larvae [Photo courtesy of Val Libby, Blue Hill (Maine) on 1 Aug. 2021]
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Final larval instar of the Dogwood Sawfly (Macremphytus testaceus) (August 9th, 2009; Medway, Maine)
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Final larval instar of the Dogwood Sawfly (Macremphytus testaceus) (August 9th, 2009; Medway, Maine) (Similar to a White Pine Sawfly larva)
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Elm Sawfly (larval stage) (7/27/2009; Pittsfield, ME)
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Elm Sawfly (larval stage) (7/27/2009; Pittsfield, ME)
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Elm Sawfly adult, resting on a pea plant (7/1/2020; Edgecomb, Maine) (Photo by E. Kerr)
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European Apple Sawfly (larvae)
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European Pine Sawfly larva
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European Pine Sawfly larvae
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Two European Pine Sawfly cocoons attached to a pine needle
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Introduced Pine Sawfly larva (July 11, 2015) (central Maine)
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Introduced Pine Sawfly larva (July, 2015)
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Introduced Pine Sawfly adult (Etna, ME; 4/15/2020)
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Introduced Pine Sawfly adult (Etna, ME; 4/15/2020)
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White Pine Sawfly larvae
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White Pine Sawfly larva