Species Porcellio dilatatus

Classification · Identification · See Also · Internet References

Oniscus asellus or Porcellio dilatatus or ? - Porcellio dilatatus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Crustacea (Crustaceans)

Class Malacostraca (Malacostracans)

Superorder Peracarida

Order Isopoda (Isopods)

Suborder Oniscidea (Woodlice)

Family Porcellionidae

Genus Porcellio

Species dilatatus (Porcellio dilatatus)

Identification

Main (visible) characteristics of the species:

- wide oval shape (wider and bigger than a usual P. scaber specimen)

- brownish color with typical lighter pattern (compare this with those under P. scaber on bugguide)

- 2 flagellae on each antenna (like every Porcellio)

- 2 pairs of bright white "lungs" on ventral side (like every Porcellio)

- well developed middle lobe on the head, but rounded rather than pointy

- and the most helpful: the shape of the telson is elongated with rounded tip and not pointy-triangle (e.g. that of P. scaber)

- reproduced from comments on

See Also

Porcellio scaber (below) for comparison:

Internet References

Porcellio dilatatus gallery

Contributed by Hannah Nendick-Mason on 22 July, 2008 - 1:40pm

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