Physical Description

Type Information

Neotype for Julus ornatus Girard
Catalog Number: USNM
Collection: Smithsonian Institution, National Museum of Natural History, Department of Entomology
Sex/Stage: Male;
Preparation: Alcohol
Collector(s): J. Reddell
Year Collected: 1967
Locality: Palo duro State Park; randall Co.; Tex, Randall, Texas, United States
  • Neotype:
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© Smithsonian Institution, National Museum of Natural History, Department of Entomology

Source: National Museum of Natural History Collections

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Holotype for Orthoporus arizonicus Loomis
Catalog Number: USNM
Collection: Smithsonian Institution, National Museum of Natural History, Department of Entomology
Preparation: Alcohol
Collector(s): R. Peebles
Year Collected: 1949
Locality: Patagonia; Ariz, Arizona, United States
  • Holotype:
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© Smithsonian Institution, National Museum of Natural History, Department of Entomology

Source: National Museum of Natural History Collections

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Holotype for Orthoporus entomacis Chamberlin & Mulaik, 1941
Catalog Number: USNM
Collection: Smithsonian Institution, National Museum of Natural History, Department of Entomology
Sex/Stage: Male;
Preparation: Alcohol
Collector(s): D. Mulaik & S. Mulaik
Year Collected: 1939
Locality: Duncan, Arizona, Arizona, United States
  • Holotype:
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© Smithsonian Institution, National Museum of Natural History, Department of Entomology

Source: National Museum of Natural History Collections

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Holotype for Orthoporus producens Chamberlin, 1947
Catalog Number: USNM
Collection: Smithsonian Institution, National Museum of Natural History, Department of Entomology
Sex/Stage: Female;
Preparation: Alcohol
Collector(s): V. Shelford
Year Collected: 1944
Locality: Arizona: benson yucca grassland, Arizona, United States
  • Holotype:
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Source: National Museum of Natural History Collections

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Paratype for Orthoporus crotonus Chamberlin, 1952
Catalog Number: USNM
Collection: Smithsonian Institution, National Museum of Natural History, Department of Entomology
Sex/Stage: Female;
Preparation: Alcohol
Collector(s): Schmidt
Year Collected: 1937
Locality: Croton Spr., north of chinos Mts.; Brewster Co.; Tex, Brewster, Texas, United States
  • Paratype:
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Wikipedia

Orthoporus ornatus

Orthoporus ornatus (also known as the desert millipede) is a species of millipede in the family Spirostreptidae that can be found in Arizona, New Mexico and Texas.[1] The species on average are 10 centimetres (3.9 in) in length,[2] but can either be as small as 3 inches (76 mm),[3] and exceed up to 6 inches (150 mm) in length. They are dark brownish coloured,[4] but can sometimes be yellow too. In fact, in every state the species look different.[5] They have 2 pairs of legs and one pair of antennae.[6] The antennae are located near the organs of Tömösváry. The species feed on both living and dead organic material. The species prefer sunshine, but can be seen on summer rainy days as well. A disturbed Orthoporus ornatus may curl into a coil and release a toxic substance, that is located on all sides of its body. The species can live more than 10 years[7] The species feed on shrubs of Ephedra, which grows in Jornada del Muerto, and on Salsola that grows in Albuquerque.[8] When the millipede of this species dies it turns white from sun rays.[9]

References[edit]

  1. ^ "Distribution". Retrieved November 28, 2012. 
  2. ^ "Description of dead Orthoporus ornatus". Retrieved November 28, 2012. 
  3. ^ "Desert millipede size". Bugs In Cyberspace. Retrieved November 28, 2012. 
  4. ^ "Deseret Millipede (Orthoporus ornatus)". Petroglyph National Monument. Retrieved November 27, 2012. 
  5. ^ F. S. Nunez & C. S. Crawford (1977). "Anatomy and histology of the alimentary tract of the desert millipede Orthoporus ornatus (Girard) (Diplopoda: Spirostreptidae)". Journal of Morphology 151 (1): 121–130. doi:10.1002/jmor.1051510107. 
  6. ^ "Millipedes Lotsa Legs". Sonoran Arthropod Studies. Retrieved November 28, 2012. 
  7. ^ "Description and habitat". Arizona Wildlife. August 10, 2008. Retrieved November 28, 2012. 
  8. ^ R. C. Wooten, Jr., C. S. Crawford & W. A. Riddle (1975). "Behavioural thermoregulation of Orthoporus ornatus (Diplopoda: Spirostreptidae) in three desert habitats". Zoological Journal of the Linnean Society 57 (1): 59–74. doi:10.1111/j.1096-3642.1975.tb01890.x. 
  9. ^ "Description of dead Orthoporus ornatus". Retrieved November 28, 2012. 
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