Desoria tigrina

    Description

    Desoria species are covered in fine setate but unlike other Isotomids have no few macrosetate. Desoria tigrina is a grey-brown species with a dosal stripe plus two lateral stripes. The long setae on abdomen 5 are taxonomically important - to distinguish between Desoria violacea and D. tigrina, in addition to colour, find the ratio of the longest seta on abd. 5 to the length of the segment.  For Desoria tigrina this ratio is <0.7, while Desoria violacea has longer seta with a ratio around 1.1. 

    Desoria tigrina characters: 
    - No macrosetae
    - Ocelli B-D-E aligned
    - Mucro with 4 teeth and no lateral seta
    - Long setae on Abd5 <0.7 length of Abd5

    Identification difficulty
    Habitat

    This species has a tendency towards human-impacted soils or habitats rich in organic matter.

    When to see it

    All year round.

    UK Status

    Common and widespread. 

    VC55 Status

    Status in Leicestershire and Rutland unknown, under recorded. 

    Leicestershire & Rutland Map

    UK Map