Arachnids of North Carolina
Order:
Scientific Name: Common Name: Family (Alpha):
« »
View Oecobiidae Members: NC Records

Oecobius cellariorum - a flatmesh weaver

Oecobius cellariorumOecobius cellariorumOecobius cellariorumOecobius cellariorum
Taxonomy
Order: ARANEAEInfraorder: AraneomorphaeFamily: Oecobiidae                                                                                 
Identification
Online Description/Photos: BugGuide Google, iNaturalist, Wikipedia, GBIF
Comments: Minimal markings on the cephalothorax are characteristic.
Total Length: Females ca. 3mm, males ca. 2mmAdult ID: identifiable by photo of specific features and/or supplementary info
Structural photos
Oecobius cellariorum
Left palp of NCBP 6113, specimen shown below		 Oecobius cellariorum
Left palp of NCBP 6113, specimen shown below		 Oecobius cellariorum
Epigynum of NCBP 6347, shown below.
Distribution in North Carolina
Comments: MD to AZ, but notably non-reported from the Gulf states.
County Map: Clicking on a county returns the records for the species in that county.
Oecobius cellariorum
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:
Observation Methods:
Abundance/Frequency: Synanthropic and and widespread globally, these small spiders are easily overlooked.
Prey: Members of this family seem readily to take ants.
Behavior: Commonly found on walls, they can run surprisingly fast when disturbed.
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks:
State Protection:
Comments:

 Photo Gallery for Oecobius cellariorum - a flatmesh weaver

Photos: 10

Recorded by: Ken Kneidel on 2025-05-19
Mecklenburg Co.
Comment: 		Recorded by: Ken Kneidel on 2025-05-19
Mecklenburg Co.
Comment:
Recorded by: Ken Kneidel on 2025-05-19
Mecklenburg Co.
Comment: 		Recorded by: Donald Zepp on 2022-06-20
Johnston Co.
Comment:
Recorded by: Donald Zepp on 2022-06-20
Johnston Co.
Comment: See epigynum in "Structural photos," above		Recorded by: Donald Zepp on 2022-03-24
Johnston Co.
Comment: See palp photos in "Structural photos," above
Recorded by: Carol Tingley on 2019-08-12
Wake Co.
Comment: 		Recorded by: Carol Tingley on 2019-08-12
Wake Co.
Comment:
Recorded by: Carol Tingley on 2019-08-12
Wake Co.
Comment: 		Recorded by: Brian Bockhahn on 2015-06-13
Rockingham Co.
Comment: