Harpaphe haydeniana (the yellow-spotted millipede, almond-scented millipede or cyanide millipede) is a species of polydesmidan (‘flat-backed’) millipede. English: Harpaphe haydeniana is a millipede native to the Pacific Northwest of North America. Individuals with similar coloration outside of this. General Description. Harpaphe haydeniana, in the Order. Polydesmida (flat- backed millipede), is also known as the almond-scented millipede.
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Harpaphe haydeniana is an important part of the forest ecosystem here in the Pacific Northwest with its role in regulation of plant litter decomposition and nutrient cycling.
Upcoming Events Discussioninsects and people from the BugGuide Gathering in VirginiaJuly Photos baydeniana insects and people from the gathering in WisconsinJuly Photos of insects and people from the gathering in VirginiaJune Many millipedes with bright color patterns secrete a compound containing cyanide.
Central California to coastal southeast Alaska. From Wikipedia, the free encyclopedia.
As with other millipedes, Haraphe haydeniana is a vegetarian and scavenger. Size maximum length of 40 mm Identification A millipede with a flattened body.
Several hundred small eggs are laid in loose clusters in soil or leaf debris.
Millipede – Harpaphe haydeniana –
If you need expert professional advice, contact your local extension office. West Coast of NA: This behaviour gives rise to the common names “cyanide millipede” and “almond-scented millipede” since cyanide smells of almondsalthough cyanide secretion is not unique to H. Females have 31 leg pairs whereas males have 30 leg pairs, the seventh segment being modified for formation of gonopods and sperm transfer.
When mature they can reach a size of 5 cm. Harpaphe haydeniana From ize.
They reach reproductive maturity when they reach 4 to 5 cm long, having approximately 20 segments. Harpaphe haydeniana Wood Common in mid to low elevation forests on the Pacific Northwest coastal region. Contributors own the copyright to and are solely responsible for contributed content.
Retrieved March 26, hadyeniana The hydrogen cyanide is therefore a powerful defense mechanism and they are generally avoided by potential predators. The first and last segments are legless. The difference between males and females is due to one pair of legs on the seventh segment in males being modified to form gonopods used for sperm transfer.
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Dedicated naturalists volunteer their time and resources here to provide this service. Abundance generally depends on the quantity and quality of litterfall.
In other projects Wikimedia Commons. Wash your hands after handling them and do not allow children to pick them up. Chonaphe is quite similar in the same region. Both the adult and immature individuals feed on organic matter. Habitat It tends to live in moist forests.
Individuals may live for 2—3 years. Photos of insects and people from the gathering in ArizonaJuly Photos of insects and people from the gathering in Alabama Photos of insects and people from the harpaaphe in Iowa Photos from the Workshop in Grinnell, Iowa Photos from the gathering in Washington.
Yellow-spotted Millipede (Harpaphe haydeniana) ·
Contributed by Lynette Elliott on 16 Haydeninaa, – 7: Their major role in decomposition is specifically in the modification in the physical and chemical character of the litter. Some secretions discolor the skin, but this wears away in a few days without lasting effect. Reproduction occurs in spring. Click the contributor’s name for licensing and usage information.