Arachnids of North Carolina
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Common Spiders of NC
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Comments
Order:
Araneae - Spiders
Opiliones - Harvestmen
Pseudoscorpiones - Pseudoscorpions
Scorpiones - Scorpions
Scientific Name:
Common Name:
Family (Alpha):
ACROPSOPILIONIDAE-
AGELENIDAE-Funnel Weavers
AMAUROBIIDAE-Hacklemesh Weavers
ANTRODIAETIDAE-Folding Trapdoor Spiders
ANYPHAENIDAE-Ghost Spiders
ARANEIDAE-Orb Weavers
ATYPIDAE-Purseweb Spiders
BUTHIDAE-
CADDIDAE-
CHEIRACANTHIIDAE-
CHEIRIDIIDAE-
CHELIFERIDAE-
CHERNETIDAE-
CHTHONIIDAE-
CICURINIDAE-
CLUBIONIDAE-Sac Spiders
CORINNIDAE-Antmimics and Ground Sac Spiders
COSMETIDAE-Armoured harvestmen
CTENIDAE-Wandering Spiders
CYBAEIDAE-
DEINOPIDAE-Ogrefaced spider
DESIDAE-
DICTYNIDAE-Mesh Web Weavers
DYSDERIDAE-
EUCTENIZIDAE-Wafer-lid Trapdoor Spiders
FILISTATIDAE-
GARYPINIDAE-
GNAPHOSIDAE-Ground Spiders
HAHNIIDAE-
HALONOPROCTIDAE-
HYPOCHILIDAE-
LARCIDAE-
LEPTONETIDAE-
LINYPHIIDAE-Sheetweb and Dwarf Spiders
LIOCRANIDAE-Liocranid Sac Spiders
LYCOSIDAE-Wolf Spiders
MICROHEXURIDAE-
MIMETIDAE-Pirate spiders
MITURGIDAE-Prowling Spiders
MYSMENIDAE-
NEOBISIIDAE-
NEPHILIDAE-
NESTICIDAE-Scaffold Web Spiders
OECOBIIDAE-Wall spiders
OONOPIDAE-
OXYOPIDAE-Lynx Spiders
PHALANGIIDAE-
PHALANGODIDAE-Armoured harvestmen
PHILODROMIDAE-Running Crab Spiders
PHOLCIDAE-
PHONOGNATHIDAE-
PHRUROLITHIDAE-
PISAURIDAE-Nursery Web Spiders
SABACONIDAE-
SALTICIDAE-Jumping Spiders
SCLEROSOMATIDAE-
SCYTODIDAE-
SEGESTRIIDAE-
SICARIIDAE-
SPARASSIDAE-Giant Crab Spiders
STERNOPHORIDAE-
TARACIDAE-
TETRAGNATHIDAE-Long-jawed Orb Weavers
THERIDIIDAE-Cobweb Spiders
THERIDIOSOMATIDAE-Ray Spiders
THOMISIDAE-Crab Spiders
TITANOECIDAE-
TRACHELIDAE-
TRIAENONYCHIDAE-Armoured harvestmen
TRIDENCHTHONIIDAE-
ULOBORIDAE-Cribellate Orb Weavers
VAEJOVIDAE-
ZOROPSIDAE-False Wolf Spiders & Wandering Spiders
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Phalangodidae Members:
Bishopella laciniosa
Erebomaster acanthinus
Theromaster brunneus
NC
Records
Erebomaster acanthinus
(Crosby & Bishop 1924) - No Common Name
Taxonomy
Order:
OPILIONES
Suborder:
Laniatores
Superfamily:
Travunioidea
Family:
Phalangodidae
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)
Identification
Online Description/Photos:
BugGuide
Google
,
iNaturalist
,
Wikipedia
,
GBIF
Technical Description:
Crosby and Bishop (1924); Briggs (1969)
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)
Adult ID:
identifiable by photo
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.
Distribution in North Carolina
Comments:
All of our records come from the Piedmont
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)
Click on graph to enlarge
Habitats and Life History
Habitats:
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
Abundance/Frequency:
Usually recorded as single individuals but with repeated captures at some sites (e.g., Duke Forest)
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks:
[GNR] [S3S5]
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
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
Photos: 6
Recorded by: Carol Tingley on 2024-07-27
Chatham Co.
Comment:
Recorded by: Carol Tingley on 2022-04-07
Alexander Co.
Comment:
Recorded by: Carol Tingley on 2021-09-02
Durham Co.
Comment:
Recorded by: Carol Tingley on 2020-09-13
Harnett Co.
Comment:
Recorded by: Carol Tingley on 2020-09-13
Harnett Co.
Comment:
Recorded by: Carol Tingley on 2017-04-01
Chatham Co.
Comment: Collected from moss, litter, and duff
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