Entomobrya nicoleti is widespread and very common and reaches 2 mm in length (Figs. 1 to 3). In my experience, this species is most frequent under surface debris such as recently fallen branches and planks of wood, but it is known from many other similar sites at ground level. All the specimens I have collected have had much less pigmentation than that shown in diagrams in the literature. However, the two dark spots of pigment on the posterior margin on either side of the midline of the fourth abdominal segment are always present.

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Fig. 1 (above) and 2 (below): Live specimen of Entomobrya nicoleti (1.5 mm in length) from a garden in Reading.

Fig. 3 (above): Entomobrya nicoleti (2.0 mm in length) collected from Astley Cross, Stourport in February 1953 by D.S. Madge.