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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Apparently this is a defensive manuveur. California Department of Agriculture. As with other millipedes, Haraphe haydeniana is a vegetarian and scavenger. Synonyms and other taxonomic changes. It has a shiny black body sometimes with a bluish-green sheen with bright yellow patches on the outside portion of most segments. Harpaphe haydeniana reach a length of 4—5 centimeters 1. A millipede with a flattened body. Millipedes also curl up in tight coils when threatened. Harpaphe haydeniana has few predatorsdue to its aposematic coloration and its ability to secrete hydrogen cyanide when threatened.
If you need expert professional advice, contact your local extension office. Occasional Papers of the Bureau of Entomology.
File:Harpaphe haydeniana JPG – Wikimedia Commons
Central California to coastal southeast Alaska. Some large, cylindrical, tropical species squirt their defensive secretions up to a half meter feet and can blind chickens and dogs. Range West Coast of NA: Harpaphe haydeniana, commonly known as the yellow-spotted millipedealmond-scented millipede or cyanide millipedeis a species of polydesmidan “flat-backed” millipede found in the moist forests along the Pacific coast of North America, from Southeast Alaska to California.
Harpaphe haydeniana Scientific classification Kingdom: It is common on the forest floor along the Pacific coast of North America. In other projects Wikimedia Commons.
Upcoming Events Discussioninsects and people from the BugGuide Gathering in VirginiaJuly Photos of insects and people from the gathering in WisconsinJuly Photos of insects and people from the gathering in VirginiaJune Habitat It tends to live in moist forests. They reach reproductive maturity when they reach 4 to 5 cm long, having approximately 20 segments. 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 gathering in Iowa Photos from the Workshop in Grinnell, Iowa Photos from the gathering in Washington.
Harpaphe haydeniana Wood Contributors own the copyright to and are solely responsible for contributed content. This conspicuous millipede has aposematic coloration, being black with light yellow patches along the dorsal edge of its body. From Wikipedia, the free encyclopedia.
When mature they can reach a size of 5 cm. 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.
Despite the various common names given the species, the coloration ahydeniana, cyanide defense, and associated almond scent occur in other flat-backed millipedes around the world. Monographs of the Western North American Naturalist.
There are a total of approximately 20 body segments with two pairs of legs with each segment. Size maximum length of 40 mm Identification A millipede with a flattened body. Photos from East Carolina Univ. The Biology of Millipedes. The dark coloration with contrasting yellow-tipped keels warn of its ability to exude toxic hydrogen cyanide as a defense.
The first and last segments are legless. The ground beetle Promecognathus laevissimus is known to be a specialized predator. Many millipedes with bright color patterns secrete a compound containing cyanide. Dedicated naturalists volunteer their time and resources here to provide this service.
If you need expert professional advice, contact your local extension office. Upcoming Events Discussioninsects and people from the BugGuide Gathering in VirginiaJuly Photos of insects and people from the gathering in WisconsinJuly Photos of insects and people from the gathering in VirginiaJune The genus Harpaphe is in the hafpaphe Xystodesmidaewhich contains several other species with similar markings, including North American species of BorariaChonaphePaimokiaHybaphe and Montaphe.
File:Harpaphe haydeniana 0446.JPG
hayceniana Please consider a year-end gift to BugGuide! Retrieved March 26, Outside of North America, superficially similar species include Anoplodesmus saussurii which has been mistakenly called H.
Two other species of Harpaphe H. 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.
Oregon State University, Oregon. East to the Sierra Nevada. Views Page Discussion View source History. Oxford University Press, New Hayfeniana. Insects of the Pacific Northwest. Life expectancy is about years.