[Pacific Northwest Arthropods]

Yellow-spotted Millipede, Almond-scented Millipede, Cyanide Millipede

Harpaphe haydeniana

Yellow-spotted Millipede, Almond-scented Millipede, Cyanide Millipede: Haraphe haydeniana
Yellow-spotted millipede spotted on a mossy stump along the Lewis River Trail #31 between Curly Creek Falls and Bolt Camp Shelter, Gifford Pinchot National Forest.........May 3, 2015.

Yellow-spotted Millipede, Almond-scented Millipede, Cyanide Millipede: Haraphe haydeniana Yellow-spotted millipede coiled up in defensive posture, from McCord Creek........early August, 1998.

The millipede known as Haraphe haydeniana is a millipede with a flattened body. It reaches a maximum length of 40 mm and has a shiny black body with bright yellow patches on the outside portion of most segements. As with other millipedes, this millipede has two pairs of legs per body segment. Their movement is fairly slow.

This particular millipede secretes a dark fluid that has an odor similar to the almond extract used in cooking. Apparently this is a defensive manuveur. Millipedes also curl up in tight coils when threatened. As with other millipedes, Haraphe haydeniana is a vegetarian and scavenger. It tends to live in moist forests.


Yellow-spotted Millipede, Almond-scented Millipede, Cyanide Millipede: Haraphe haydeniana

Yellow-spotted Millipede, Almond-scented Millipede, Cyanide Millipede: Haraphe haydeniana

A yellow-spotted millipede crawling over leaf litter (red alder leaves) along the Willapa Hills Trail adjacent to Walville, several miles east of the Willapa Hills summit, Washington......November 16, 2022.

Yellow-spotted Millipede, Almond-scented Millipede, Cyanide Millipede: Haraphe haydeniana

Yellow-spotted millipede from McCord Creek, Columbia River Gorge..........early August, 1998.

Paul Slichter