From Wikipedia - Reading time: 6 min
| Melanogaster hirtella | |
|---|---|
| female | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Genus: | Melanogaster |
| Species: | M. hirtella
|
| Binomial name | |
| Melanogaster hirtella (Loew, 1843)
| |
Melanogaster hirtella is a European species of hoverfly.[1][2][3][4][5]
Wing length: 5.25–6.75 mm (0.207–0.266 in). Black with dark wings. Male thorax and scutellar dorsum with a mixture of long and short hairs, varying from completely yellowish to a large portion of dark hairs. Face broad: width of the head/width of the face under the antennae: 1.91–2.08. Female thoracic dorsum with long, erect black to grey hairs. The male genitalia are figured by Maibach and Goeldlin de Tiefenau (1994).[6] The larva is figured by Hartley (1961).[7]
Palearctic Atlantic Europe. Denmark south to Brittany, the Pyrenees and Portugal. Ireland then east only to the Alps (Switzerland and Liechtenstein).[8][9]

Wetland, fen, marsh, waterside pasture, along woodland streams, beside ponds, lakes, and rivers.[9] Flowers visited include white umbellifers, Caltha, Euphorbia, Iris pseudacorus, Menyanthes, Mimulus guttatus, Potentilla erecta, Pyrus communis, Ranunculus, Sorbus aucuparia, Taraxacum, Viburnum opulus.[10]
The flight period is April to July. The larva is aquatic, associated with various aquatic plants, including Glyceria and Typha. The larvae tap the aerenchyma to gain their air supply.