Iteomyia capreae
| Iteomyia capreae | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Cecidomyiidae |
| Genus: | Iteomyia |
| Species: | I. capreae
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| Binomial name | |
| Iteomyia capreae (Winnertz, 1853)
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| Synonyms[1] | |
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Cecidomyia salicisfolii Hardy, 1854 | |
Iteomyia capreae is a gall midge which forms galls on willows (Salix species). It was first described by Johannes Winnertz in 1853.
Description of the gall[edit]
The midge forms two different galls which can be found, either on the leaf bade or on a side-vein of a leaf.
- in the leaf blade the gall is a hard, domed pouch above, and below it is conical, with a red-rimmed opening. The opening is hairless and initially greenish, later becoming yellow, brown, purple or red. It contains a single larva which is white at first and later orange or red.
- the side-vein is a 2–3 mm long, hard swelling, containing the larva.[2][3]
When mature the larvae drop from the gall, overwintering in the soil and pupating in the spring.[4]
The galls are found on sallows or their hybrids and include, almond willow (S. triandra), common osier (S. viminalis), crack willow (S. fragilis), dark-leaved willow (S. myrsinifolia), eared willow (S. aurita), European violet willow (S. daphnoides), goat willow (S. caprea), grey willow (S. cinerea) and S. appendiculata.[3]
Distribution[edit]
The insect has been recorded in Asia, and Europe, from Ireland and Portugal in the west, through to Siberia, China and Japan in the east.[5]
References[edit]
- ^ "Iteomyia capreae (Winnertz, 1853)". NBN atlas. Retrieved 23 March 2018.
- ^ Redfern, Margaret; Shirley, Peter; Boxham, Michael (2011). British Plant Galls (Second ed.). Shrewsbury: Field Study Council. pp. 282–299. ISBN 978-185153-284-1.
- ^ a b Ellis, W N. "Iteomyia capreae (Winnertz, 1853)". Plant Parasites of Europe. Retrieved 23 March 2018.
- ^ Chinery, Michael (2011). Britain's Plant Galls. Old Basing, Hampshire: WildGuides. p. 62. ISBN 978-190365743-0.
- ^ "Distribution of Iteomyia capreae". ResearchGate. Retrieved 23 March 2018.
External links[edit]
- Bioimages
Media related to Iteomyia capreae at Wikimedia Commons
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