Click on the first letter of the common name.

British Invertebrates - terrestrial and freshwater

Species 1 - 10 of 10
Thumbnail for Marsh fritillary (Eurodryas aurinia)
Marsh fritillary (Eurodryas aurinia)
The marsh fritillary has a highly patterned pale yellowish-brown upperside with orange-brown markings and brown spots, giving...  More 14 Images1 Video
Thumbnail for Marsh mallow moth (Hydraecia osseola hucherardi)
Marsh mallow moth (Hydraecia osseola hucherardi)
The common name of the Marsh Mallow moth refers to the larval (caterpillar) foodplant of the same name (Althaea...  More 4 Images0 Videos
Thumbnail for Marsh moth (Athetis pallustris)
Marsh moth (Athetis pallustris)
This moth is highly secretive and unpredictable in its appearances. There is a noticeable size difference between the male and the...  More 3 Images2 Videos
Thumbnail for Mayfly (Heptagenia longicauda)
Mayfly (Heptagenia longicauda)
This mayfly is very rare in Britain, and has only ever been found three times in this country. The aquatic nymphs of Heptagenia...  More 2 Images0 Videos
Thumbnail for Meadow brown (Maniola jurtina )
Meadow brown (Maniola jurtina )
The meadow brown is a common butterfly. It is dark brown in colour with an eye-spot on each forewing. Females can be distinguished...  More 9 Images0 Videos
Thumbnail for Medicinal leech (Hirudo medicinalis)
Medicinal leech (Hirudo medicinalis)
This animal has a slightly flattened cylindrical body, divided into 33 or 34 segments. The upperside is dark brown or black with...  More 7 Images1 Video
Thumbnail for Mire pill beetle (Curimopsis nigrita)
Mire pill beetle (Curimopsis nigrita)
Pill beetles have rounded, convex bodies. The mire pill beetle, or 'bog hog' is tiny, measuring just 2 mm in length, and is black...  More 4 Images0 Videos
Thumbnail for Moccas beetle (Hypebaeus flavipes)
Moccas beetle (Hypebaeus flavipes)
The very rare Moccas beetle is a false soldier beetle, or malachite. They are black in colour, with a soft cuticle, and males have...  More 5 Images0 Videos
Thumbnail for Mole cricket (Gryllotalpa gryllotalpa)
Mole cricket (Gryllotalpa gryllotalpa)
This is our largest native orthopteran and one of our most impressive and unusual looking insects. The scientific name derives...  More 8 Images3 Videos
Thumbnail for Mottled bee-fly (Thyridanthrax fenestratus)
Mottled bee-fly (Thyridanthrax fenestratus)
As the common name suggests, the mottled bee-fly is somewhat similar in appearance to a bee. Like all flies, it has a single pair...  More 6 Images2 Videos