Moved from Polydesmida.

One more thing. The epiproct, or telson, the caudalmost part of the body is broad and truncate as opposed to triangular and pointed as in other brightly colored polydesmidans in the same areas. Even when they don't show the bright adult colors, they can always be distinguished by the broad, not triangular, epiproct. RS

These in Iowa can only be Auturus evides (Bollman, 1888) (Polydesmida: Euryuridae). They are very beautiful; the full adult color is black with bright red middorsal spots all the way down the body and bright red margins or paranota. They are one of the few millipeds with a precise habitat; I always find euryurids in association with decaying hardwood/deciduous logs or stumps (rarely pine) near water sources like streams, creeks, seepages. If no water nearby, then no euryurids. They occur from the Mississippi Valley to the Atlantic Coast and from midway up Ohio,Indiana, & illinois to the Gulf Coast and northern peninsular Florida. Only 2 genera, Auturus & Euryurus, and ca. 8-10 species. Rowland Shelley

Moved from ID Request.