Information about Harpaphe Haydeniana
| Harpaphe haydeniana | ||||||||||||||||
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| Harpaphe haydeniana Wood, 1864 | ||||||||||||||||
Harpaphe haydeniana (the yellow-spotted millipede, almond-scented millipede or cyanide millipede) is a millipede found in the moist forests along the Pacific coast of North America, from California to British Columbia and Alaska and South East Asia.
H. haydeniana reach a length of 4–5 centimetres when mature, and may live for 2–3 years. The body is black, and is distinctively marked along the sides with patches of a yellowish colour. H. haydeniana has approximately twenty body segments, bearing a total of 30 (males) or 31 (females) pairs of legs. The difference between males and females is due to one pair of legs on the seventh segment being modified in the male to form gonopods used for sperm transfer.
H. haydeniana is an important part of the forest ecosystem, breaking down leaf litter, and freeing up its nutrients for other organisms. Immature millipedes feed on humus.
H. haydeniana has few predators, due to its aposomatic colouration and its ability to secrete hydrogen cyanide when threatened. This behaviour gives rise to the common names "cyanide millipede" and "almond-scented millipede" (since almonds smell of cyanide). Nonetheless, at least one species, the ground beetle Promecognathus laevissimus is a specialised predator of H. haydeniana.
External links
- Olympic National Park: almond-scented millipede
- Systematic compendium of arthropods and annelid worms from the Fort Collins Science Center
Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Arthropoda
Latreille, 1829
Subphyla and Classes
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Latreille, 1829
Subphyla and Classes
- Subphylum Trilobitomorpha
- Trilobita - trilobites (extinct)
- Subphylum Chelicerata
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Myriapoda
Latreille, 1802
Classes [1]
Chilopoda
Diplopoda
Pauropoda
Symphyla
Myriapoda is a subphylum of arthropods containing millipedes, centipedes and others.
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Latreille, 1802
Classes [1]
Chilopoda
Diplopoda
Pauropoda
Symphyla
Myriapoda is a subphylum of arthropods containing millipedes, centipedes and others.
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Diplopoda
De Blainville in Gervais, 1844 [1]
Subclasses, orders and families
See text
Millipedes (Class Diplopoda
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De Blainville in Gervais, 1844 [1]
Subclasses, orders and families
See text
Millipedes (Class Diplopoda
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binomial nomenclature is the formal system of naming species. The system is also called binominal nomenclature (particularly in zoological circles), binary nomenclature (particularly in botanical circles), or the binomial classification system.
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Diplopoda
De Blainville in Gervais, 1844 [1]
Subclasses, orders and families
See text
Millipedes (Class Diplopoda
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De Blainville in Gervais, 1844 [1]
Subclasses, orders and families
See text
Millipedes (Class Diplopoda
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Earth's oceans
(World Ocean)
The Pacific Ocean (from the Latin name Mare Pacificum
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(World Ocean)
- Arctic Ocean
- Atlantic Ocean
- Indian Ocean
- Pacific Ocean
- Southern Ocean
The Pacific Ocean (from the Latin name Mare Pacificum
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North America is a continent [1] in the Earth's northern hemisphere and (chiefly) western hemisphere. It is bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the southeast by the Caribbean Sea, and on the south and west
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British Columbia
Colombie-Britannique
Flag Coat of arms
Motto: Splendor Sine Occasu (Latin: Splendour Without Sunset (diminishment))
Capital Victoria
Largest city Vancouver
Official languages English
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Colombie-Britannique
Flag Coat of arms
Motto: Splendor Sine Occasu (Latin: Splendour Without Sunset (diminishment))
Capital Victoria
Largest city Vancouver
Official languages English
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Alaska
Flag of Alaska Seal
Nickname(s): The Last Frontier
Motto(s): "North to the Future"
Official language(s) None[1]
Spoken language(s) English 85.7%,
Native North American 5.
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Flag of Alaska Seal
Nickname(s): The Last Frontier
Motto(s): "North to the Future"
Official language(s) None[1]
Spoken language(s) English 85.7%,
Native North American 5.
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1 centimetre =
SI units
010−3 m 0 mm
US customary / Imperial units
010−3 ft 0 in
A centimetre (American spelling: centimeter, symbol cmSI units
010−3 m 0 mm
US customary / Imperial units
010−3 ft 0 in
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Sexual maturity is the age/stage when an organism can reproduce. It is sometimes considered synonymous with adulthood, though the two are distinct. In humans, the process of sexually maturing is termed puberty.
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Segmentation in biology refers to the division of some metazoan bodies and plant body plans into a series of semi-repetitive segments, and the question of the benefits and costs of doing so. As such, segmentation is related to the more general concept of modularity.
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The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments are of Latin origin, and may be confused with terms for bones: coxa (meaning hip), trochanter
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Maxillipeds are appendages modified to function as mouthparts. Particularly in the less advanced decapods, these can be very similar to the pereiopods. Pereiopods are primarily walking legs and are also used for gathering food.
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sperm is derived from the word spermos (meaning "seed") and refers to the male reproductive cells. Sperm cells are the smaller gametes involved in fertilization.
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ecosystem is a natural unit consisting of all plants, animals and micro-organisms in an area functioning together with all the non-living physical factors of the environment.
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Plant litter (sometimes called leaf litter, leaf mold or tree litter) is dead plant material, such as leaves, bark, and twigs, that has fallen to the ground.
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Humus is a term used to describe two different types of organic material in soil.
In the earth sciences, "humus" refers to any organic matter which has reached a point of stability, where it will break down no further and might, if conditions do not change, remain
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In the earth sciences, "humus" refers to any organic matter which has reached a point of stability, where it will break down no further and might, if conditions do not change, remain
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predation describes a biological interaction where a predator organism feeds on another living organism or organisms known as prey.[1] Predators may or may not kill their prey prior to feeding on them.
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Aposematism (from apo- away, and sematic warning), perhaps most commonly known in the context of warning colouration, describes a family of antipredator adaptations where a warning signal
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Secretion is the process of segregating, elaborating, and releasing chemicals from a cell, or a secreted chemical substance or amount of substance.
Eukaryotic cells have a highly evolved process of secretion.
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Eukaryotic cells have a highly evolved process of secretion.
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Hydrogen cyanide is a chemical compound with chemical formula HCN. A solution of hydrogen cyanide in water is called hydrocyanic acid. Hydrogen cyanide is a colorless, very poisonous, and highly volatile liquid that boils slightly above room temperature at 26 °C (78.8 °F).
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P. dulcis
Binomial name
Prunus dulcis
(Mill.) D.A.Webb
The Almond (Prunus dulcis, syn. Prunus amygdalus Batsch., Amygdalus communis L.
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Binomial name
Prunus dulcis
(Mill.) D.A.Webb
The Almond (Prunus dulcis, syn. Prunus amygdalus Batsch., Amygdalus communis L.
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cyanide ion, CN−.
From the top:
1. Valence-bond structure
2. Space-filling model
3. Electrostatic potential surface
4. 'Carbon lone pair' HOMO]] A cyanide
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From the top:
1. Valence-bond structure
2. Space-filling model
3. Electrostatic potential surface
4. 'Carbon lone pair' HOMO]] A cyanide
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Carabidae
Latreille, 1802
Genera
Many genera; see text.
Beetles within the Coleoptera family Carabidae are commonly known as ground beetles.
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Latreille, 1802
Genera
Many genera; see text.
Beetles within the Coleoptera family Carabidae are commonly known as ground beetles.
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Herod_Archelaus
