Distribution Records
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Vetting Levels |
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Adult phenology:
High Mountains (HM) ≥ 4,000 ft.
Low Mountains (LM) < 4,000 ft.
Piedmont (Pd)
Coastal Plain (CP)
Click on graph to enlarge
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| synonym | |
| taxonomic_comments |
One of two species in this genus, both of which occur in the East (Kury, 2003) but with only acanthinus recorded in North Carolina. Placed in the Travnuiidae by Kury (2002), which includes Theromaster but not Bishopella, which is retained within the Phalangodidae. |
| species_comment |
The holotype was collected along Walnut Creek in Raleigh (Crosby and Bishop, 1924) |
| id_comments |
A minute Armored Harvestman. The body is yellowish to reddish-orange, mottled with reddish brown (Crosby and Bishop, 1924; Briggs, 1969). The tergites are banded with brown posteriorly. Theromaster brunnea is similar in size and shape but is darker brown and differs in several structural features; their ranges also do not appear to overlap in North Carolina. |
| total_length |
1.69 mm, male (Briggs, 1969) |
| structural_features |
The abdominal scute is marked dorsally with shallow grooves, unlike Theromaster brunnea, whose scute is smooth. The palps are heavily spined, as in Theromaster, but the tergites lack the tubercles found in that species; the legs are generally smoother; and the males lack the projections on the chelicerae. |
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| fld_guide_descriptions |
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| online_photos |
BugGuide |
| prey |
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| predators |
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| behavior |
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| distribution_reference |
Crosby and Bishop (1924) |
| technical_reference |
Crosby and Bishop (1924); Briggs (1969) |
| adult_id | 1 identifiable by photo 2 identifiable by photo of specific features and/or supplementary info 3 identifiable from specimen only |
| abundance |
Usually recorded as single individuals but with repeated captures at some sites (e.g., Duke Forest) |
| distribution_comments |
All of our records come from the Piedmont |
checklist_mt_high
>=4,000 ft. | |
checklist_mt_low
<4,000 ft. | |
checklist_pd
Piedmont | |
checklist_cp
Coastal Plain | |
| habitat |
Most records appear to come from moist leaf litter collected in riparian forests |
| observation_methods |
Best found by sifting leaf litter or through use of Berlese funnels |
| state_protection |
Arachnids are not protected under state law, although permits are needed to collect them in State Parks and other public and private nature preserves |
| NHP_ranks |
[GNR] [S3S5] |
| NHP_status |
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| status_comments |
We currently have few records for this species but that is probably due to the specialized techniques needed to find it. Although it appears to be somewhat specialized in terms of its habitats, they do not appear to be restrictive. |
Photo Gallery for Erebomaster acanthinus No common name |
 | Recorded by: Carol Tingley
Alexander Co.
Comment: |  | Recorded by: Carol Tingley
Durham Co.
Comment: |
 | Recorded by: Carol Tingley
Harnett Co.
Comment: leaf litter |  | Recorded by: Carol Tingley
Harnett Co.
Comment: leaf litter |
 | Recorded by: Carol Tingley
Chatham Co.
Comment: Collected from moss, litter, and duff |
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