No identification made yet.
No interactions present.
A slug with its head chopped off?
BMIG website: www.bmig.org.uk (centipedes, millipedes & woodlice)
BMIG Newsletters ~ www.bmig.org.uk/view/resource/bmig-newsletter
BMIG Bulletins ~ www.bmig.org.uk/view/resource/bmig-bulletin
Well, Steve, the slug was climbing a tree when I photographed it, and would a slug be full of little baby slug-like wriggling, crawling things, if its head was cut off?
I've not seen this before, and I have photographed a lot of tree climbing slugs.
Insects such as dipterans are known parasitoids of mollusks. To complete their development, many dipterans use slugs as hosts during their ontogeny. Some species of blow-flies (Calliphoridae) in the genus Melinda are known parasitoids of Arionidae, Limacidae and Philomycidae. Flies in the family Phoridae, specially those in the genus Megaselia, are parasitoids of Agriolimacidae, including many species of Deroceras. House flies in the family Muscidae, mainly those in the genus Sarcophaga, are facultative parasitoids of Arionidae.
The most important parasites of slugs are the marsh flies (sciomyzids). The females lay 300 eggs or more, and each developing larva will kill several slugs, especially field slugs. Although called marsh flies, these insects are not confined to wet areas and can be found wherever there are slugs. You have to be an expert to identify them as they are simply anonymous looking flies, about 6 mm long, but it is very good to know that they are there.
Lat/Lng: 52.3617, -2.2504
OS grid ref: SO830737