Hemichroa crocea | |
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Adult (top). Larva feeding on alder leaf (bottom) | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Suborder: | Symphyta |
Family: | Tenthredinidae |
Genus: | Hemichroa |
Species: | H. crocea |
Binomial name | |
Hemichroa crocea | |
Hemichroa crocea, the striped alder sawfly or banded alder sawfly, is a species of sawfly in the family Tenthredinidae. It is probably native in Europe and has been introduced to North America. The larvae feed on the foliage of several species of alder and sometimes on birch, hazel and willow.
The adult striped alder sawfly has an orange-red thorax, a black abdomen and translucent wings. [1] The larvae resemble caterpillars, and when fully grown are about 20 mm (0.8 in) long. They have black heads and yellowish bodies with a dark brown stripe on each side of the dorsum, and two rows of dark brown markings on each side. [2]
The first generation of striped alder sawflies are on the wing in late May. The eggs are laid in slits beside the midrib of leaves of the host plant. When these hatch, the caterpillars are gregarious and feed together, in time eating the whole leaf apart from the midrib and veins, and moving on to the next leaf. These larvae reach full size in July and descend to the ground where they spend the winter in a thin-walled prepupal cocoon made of sand and soil particles cemented together. A new batch of adults appears in late July and August; larvae from this second generation are present on the host plants in August and September, before they too spend the winter as a prepupa in the ground. [2]
The larvae of this sawfly feed on several species of alder including alder ( Alnus glutinosa ), grey alder ( Alnus incana ) and green alder ( Alnus viridis ), as well as silver birch ( Betula pendula ), and hazel ( Corylus avellana ) and willow. [1] [2] [3]
The striped alder sawfly is probably native to Europe and found in southern Canada and northern United States, where it is extending its range across the continent. [1] [2]
Alnus glutinosa, the common alder, black alder, European alder, European black alder, or just alder, is a species of tree in the family Betulaceae, native to most of Europe, southwest Asia and northern Africa. It thrives in wet locations where its association with the bacterium Frankia alni enables it to grow in poor quality soils. It is a medium-sized, short-lived tree growing to a height of up to 30 metres (98 feet). It has short-stalked rounded leaves and separate male and female flowers in the form of catkins. The small, rounded fruits are cone-like and the seeds are dispersed by wind and water.
The grey pug is a moth of the family Geometridae. It is found throughout the Palearctic region. It is also found in North America. Since it does not place any special demands on climatic conditions, special caterpillar food plants, geological subsoil or the like it is a typical species of almost any Hochstaudenflur, where it occurs in the herb layer, in bushes and even on deciduous trees. It can be found on forest edges and hedgerows, on heath, in rocky places and wetlands, parks and gardens, as well as in villages and town centres.
The scalloped hazel is a moth of the family Geometridae. The species was first described by Carl Alexander Clerck in 1759.
The scalloped oak is a moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.
The rough prominent is a moth of the family Notodontidae, subfamily Phalerinae. It is also known as the white-dotted prominent and the tawny prominent. The species was first described by James Edward Smith in 1797. This common moth is found across North America from the northern boreal forests to as far south as Florida. It is most common in deciduous forests at some elevation. It is nocturnal but attracted to lights. The moths start to fly soon after dusk and return to resting places some time before dawn breaks. The adults live through late spring and early summer, and larvae are active until fall. They then pupate until the following spring.
The grey dagger is a moth of the family Noctuidae.
Agelastica alni, the alder leaf beetle, is a species of leaf beetle (Chrysomelidae) in the genus Agelastica. Agelastica alni is distributed in Europe, the Caucasus, Siberia, north-eastern Kazakhstan, and in the 19th century was introduced to the United States.
Coleophora anatipennella is a moth of the case-bearer family (Coleophoridae).
Epinotia demarniana is a moth of the family Tortricidae found in most of Europe, east to the eastern part of the Palearctic realm.
Choreutis diana, Diana's choreutis moth, is a moth of the family Choreutidae. It is found in northern North America and most of Europe. It was first described by the German entomologist, Jacob Hübner in 1819.
Choreutis pariana, the apple-and-thorn skeletonizer or apple leaf skeletonizer, is a moth of the family Choreutidae. The moth was first described by the Swedish entomologist Carl Alexander Clerck in 1759. It is native to Eurasia and was introduced to New England, USA in 1917.
Coleophora fuscocuprella is a moth of the family Coleophoridae. It is found from Fennoscandia to the Pyrenees, Italy, Albania and Romania and from Ireland to Russia.
Apoderus coryli, common name hazel-leaf roller weevil, is a species of leaf-rolling beetles belonging to the family Attelabidae subfamily Attelabinae. Because of the trunk-like elongated head, it is often mistakenly attributed to the weevils.
Hemichroa australis is a species of sawflies in the family Tenthredinidae.
Craesus septentrionalis, the flat-legged tenthred or birch sawfly, is a species of insect in the order Hymenoptera, the suborder Symphyta and the family Tenthredinidae. It was first described by Carl Linnaeus in 1758. The adult sawflies are black and brown with transparent wings and the larvae are yellowish-green and resemble caterpillars. The larvae feed on the leaves of various species of deciduous tree.
Nematus oligospilus, commonly known as the willow sawfly, is a species of sawfly in the family Tenthredinidae. Native to central and northern Europe and Asia, it was first recorded in South America in the 1980s and New Zealand in 1997, and has also been introduced to Australia, South Africa and Lesotho. Its larvae feed on the leaves of various species of willow.
Eriocampa ovata, known generally as the alder sawfly or woolly alder sawfly, is a species of common sawfly in the family Tenthredinidae. The larvae feed on the leaves of the common alder and the grey alder, sometimes causing defoliation.
Euura nigricantis is a species of sawfly belonging to the family Tenthredinidae. The larvae feed within galls on the leaves of dark-leaved willow. It was first described by Jens-Peter Kopelke in 1986.
Euura proxima is a species of sawfly belonging to the family Tenthredinidae. The larvae feed on the leaves of willows, creating galls and was described by Jean Guillaume Audinet-Serville in 1823.
Profenusa thomsoni, the amber-marked birch leaf miner, is a species of sawfly in the family Tenthredinidae. It is native to the Palearctic realm but has spread to North America. The larvae feed on the foliage of birch trees.