Polydesmidae, Leach, 1815

Shear, William A., 2012, Snoqualmia, a new polydesmid milliped genus from the northwestern United States, with a description of two new species (Diplopoda, Polydesmida, Polydesmidae), Insecta Mundi 2012 (238), pp. 1-13 : 6

Key to genera of indigenous Polydesmidae of North America

1.

- Adults with 20 segments .................................................................................................................... 2 Adults with 19 segments .................................................................................................................... 3

2(1).

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Depigmented, less than 10 mm long ........................................................ Speorthus Chamberlin Brown , reddish or nearly black, more than 10 mm long ................. Pseudopolydesmus Attems

3(1).

- Length 4 to 7 mm; gonopods lacking endomerite............................................................................ 4 Length more than 7 mm; gonopods with endomerite ..................................................................... 5 4(3).

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Gonopods relatively simple, distal zone not serrate nor with many acute projections .................

........................................................................................................................... Retrorsia Shelley. Gonopods complex, distal zone serrate or with many acute projections. Snoqualmia , n. gen.

5(3).

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