Arachnids of North Carolina
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View Neobisiidae Members: NC Records

Microbisium brunneum - No Common Name


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Taxonomy
Order: PSEUDOSCORPIONESFamily: Neobisiidae                                                                                 
Comments: Synonym: Obisium brunneum. 12 species in the genus worldwide, 2 in the US, both occur in NC
Identification
Online Description/Photos: BugGuide Google, iNaturalist, Wikipedia, GBIFTechnical Description: Manley, G.V., 1969. A pictorial key and annotated list of Michigan pseudoscorpions (Arachnida: Pseudoscorpionida). Michigan Entomologist, 2, p.2-13. Nelson, S.O., J., 1984. The genus Microbisium in North and Central America (Pseudoscorpionida, Neobisiidae). Journal of Arachnology, 12, p.341-350. Buddle, C., 2010, Photographic key to the pseudoscorpions of Canada and the adjacent USA, Canadian Journal of Arthropod Identification, No. 10.
Comments: ID the family by each leg with six segments, dentate inner margin on moveable finger of chelicera, and pleural membranes granular. ID the genus by spinneret on moveable finger of chelicera is a rounded knob, four eyes, palpal chela with 3 trichobothria on moveable finger and 7 on fixed finger (Novobisium has 4 and 8, respectively). M. brunneum is larger than M. parvulum, with different spacing of terminal trichobothrium.
Total Length: Body length 1.5 - 2 mm
Distribution in North Carolina
Comments: Widespread east of the Great Plains, from the Carolinas north into Canada.
County Map: Clicking on a county returns the records for the species in that county.
Adult phenology:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

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Habitats and Life History
Habitats: Sphagnum and other moist, boggy habitats
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Status in North Carolina
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