Allacma fusca

It is a large dark brown springtail reaching 3.5 mm in length. The fourth antennal segment (ant4) is divided into 16 subsegments; some setae on ant3 are longer than others. There are other similar species and certain identification requires detailed examination, if we cannot be certain that an image is Allacma fusca but it is likely to be this species, it is highlighted in a red box.

Found in a variety of moist habitats near to the ground surface.

Peak of activity is from spring to autumn.

Fairly common and quite widespread in Britain particularly in the southern half of the country.

Fairly frequent in Leicestershire and Rutland.