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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Chonaphe is quite similar in the same region.
File:Harpaphe haydeniana 0446.JPG
Contributors own the copyright to and are solely responsible for contributed content. United States Geological Survey. Outside of North America, superficially similar species include Anoplodesmus saussurii which has been mistakenly called H.
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. Apparently this is a defensive manuveur. Archived from the original on August 8, Oxford University Press, New York. Haydeniqna haydeniana is haydeniqna important part of the forest ecosystembreaking down leaf litterand freeing up its nutrients for other organisms. When mature they can reach a size of 5 cm.
Harpaphe haydeniana | Size ~ 5 cm. Image was made in Sanborn… | Flickr
In other projects Wikimedia Commons. Life expectancy is about years. Retrieved from ” https: Archived from the original on November 4, If you need expert professional advice, contact your local extension office. A millipede with a flattened body. Southeast Alaska to Monterey County, California. The ground beetle Promecognathus laevissimus is known to be a specialized predator. East to the Sierra Nevada. Contributors own the copyright to and are solely responsible for contributed content.
Females have 31 leg pairs whereas males have 30 leg pairs, the seventh segment being modified for formation of gonopods and sperm transfer. Orthomorpha coarctataan unrelated species, has a transverse groove in each segment.
Insects of the Pacific Northwest. Photos from East Carolina Univ. Individuals may live for 2—3 years.
Many millipedes with bright color patterns secrete a compound containing cyanide. Contributed by Lynette Elliott on 28 August, – Wash your hands after handling them and do not allow children to pick them up. If uarpaphe need expert professional advice, contact your local extension office. Articles with ‘species’ microformats Commons category link is defined as the pagename.
The dark coloration with contrasting yellow-tipped keels warn of its ability to exude toxic hydrogen cyanide as a defense. This conspicuous millipede has aposematic coloration, being black with light yellow patches along the dorsal edge of its body.
Reproduction occurs in spring. Several hundred small eggs are laid in loose clusters in soil or leaf debris. This has a similar scent to almonds, hence why it is sometimes referred to as the almond scented millipede. Occasional Papers harpa;he the Bureau of Entomology.
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.
Synonyms and other taxonomic changes.
The Biology of Millipedes. Contributed by Lynette Elliott on 16 April, – 7: Harpaphe haydeniana occurs from southeast Alaska south uaydeniana Monterey County, Californiaas far east as the Sierra Nevada mountains. Bugguide is hosted by: The first and last segments are legless. Views Read Edit View history. Please consider a year-end gift to BugGuide!