Symphylid
Symphylans, also known as garden centipedes or pseudocentipedes, are soil-dwelling arthropods of the class (biology), class Symphyla in the subphylum Myriapoda. Symphylans resemble centipedes, but are very small, non-venomous, and only distantly related to both centipedes and millipedes. They can move rapidly through the pores between soil particles, and are typically found from the surface down to a depth of about . They detritivore, consume decaying vegetation, but can do considerable harm in an Agriculture, agricultural setting by consuming seeds, roots, and root hairs in cultivated soil. Juveniles have six pairs of legs, but over a lifetime of several years, they add an additional pair at each ecdysis, moult so an adult instar usually has twelve pairs of legs. Most adult symphylans have twelve leg pairs, but the first pair is absent or vestigial in some species (e.g., those in the genus ''Symphylella''), so some adults have only eleven leg pairs instead. Symphylans lack eyes. ...
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Scutigerella Immaculata
''Scutigerella immaculata'', commonly known as the garden symphylan or glasshouse symphylid, is a species of myriapod in the family Scutigerellidae. It may have originated in Europe but now has a cosmopolitan distribution and can be a pest of crops. Description Superficially the garden symphylan resembles a centipede. It is white and up to long. It has a head with three pairs of mouthparts, a pair of long antennae and no eyes. The body is segmented, the front twelve segments each bearing a pair of short legs, while the two remaining segments are limbless. The body is covered by up to 22 dorsal, slightly sclerotised tergites. The legs work in unison, the two sides alternating. Distribution and habitat The garden symphylan occurs in most parts of the world, having been transported inadvertently with plants: it probably originated in Europe. It lives in humus-rich soil, under stones, in leaf litter, in rotting wood, in decaying matter and in other moist places. It does not burrow ...
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