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INSECTS ON ASPEN: EXTERNAL FEEDERS This page is still pretty much under construction. |
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External-feeding sawflies (Hymenoptera: Symphyta) |
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Stauronematus compressicornis (Hymenoptera: Tenthredinidae) This nematine species is called the "palisade sawfly", because larvae make small columns of dried saliva around their feeding sites. The palisades probably have a defensive role, because ants try to avoid touching them. |
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Colony of Stauronematus compressicornis larvae on Populus tremula. Note the white palisades made of dried saliva around the holes on the leaf. |
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Leaf beetles (Coleoptera: Chrysomelidae) |
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Chrysomela populi (Coleoptera: Chrysomelidae) |
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Chrysomela populi on Populus tremula. |
Mating pair of Chrysomela populi on Populus tremula in the spring. |
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Larva of Chrysomela populi on aspen shoot. |
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Gonioctena decemnotata (= Phytodecta rufipes) (Coleoptera: Chrysomelidae) |
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Gonioctena decemnotata on Populus tremula. |
Gonioctena decemnotata female guarding batch of larvae on Populus tremula. |
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Phratora sp. (Coleoptera: Chrysomelidae) |
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Group of Phratora sp. larvae skeletonizing underside of Populus tremula leaf. |
Adult Phratora sp. on Populus tremula. |
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Cryptocephalus octopunctatus (Coleoptera: Chrysomelidae) |
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Cryptocephalus octopunctatus on Populus tremula. |
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Butterflies and moths (Lepidoptera) |
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Notodonta ziczac (Lepidotera: Notodontidae) |
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Pair of Notodonta ziczac larvae devouring a Populus tremula leaf. |
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Cerura vinula (Lepidotera: Notodontidae) |
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One of the odder sights in nature: Cerura vinula larva on a Populus tremula leaf. The species also feeds on various willow species |
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Leucoma salicis (Lepidotera: Lymantriidae) |
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Larva of the lymantriid moth Leucoma salicis feeding on Populus tremula. As the name implies, the species also occurs on many willows. |
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