Common Harvester Money Spider

Mermessus trilobatus

General Status Rank: 
Undetermined
Common Name: 
Common Harvester Money Spider
Scientific Name: 
Mermessus trilobatus
Synonyms: 
Mermessus trilobata
Eperigone trilobata
Bathyphantes floridana
Bathyphantes tristis
Tmeticus trilobatus
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Taxonomy
Group: 
Arachnid (Spider)
Kingdom: 
Animalia
Phylum: 
Arthropoda
Class: 
Arachnida
Order: 
Araneae
Family: 
Linyphiidae
General Biology

Female Age at Maturity

Considering their global range, observations of this species have occurred throughout the calendar year (Millidge 1987).
Habitat
The genus as a whole is adapted to moist conditions. Habitat for this species includes meadows, prairie, forest litter, moss, sphagnum, ditches, lakeshores, sand dunes, and salt marshes. In Oregon, the species has been recorded living in pitcher plants (Millidge 1987).
Distribution

Distribution

In North America, the species has been recorded from much of the United States, with observations particularly concentrated in the northeastern United States. In Canada, the species has been recorded from Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Nova Scotia, Ontario, Quebec, and Saskatchewan, in addition to the NWT. In the NWT, the species has only been recorded from Hay River. Recent records of the species have been noted in Germany; likely a import from the United States (Millidge 1987).

Number of Occurrences

There is only one record of this species in the NWT; from Hay River (as synonym Eperigone trilobata) (Millidge 1987). Reference: Millidge, A.F. 1987. The Erigonine Spiders of North America. Part 8. The genus Eperigone Crosby and Bishop (Araneae, Linyphiidae). American Museum of Natural History, 2885: 1-75.
General Status Rank
Rank: 
Undetermined
Status Rank Description: 
Regional experts consider this species to be poorly known and unrankable in the NWT.
S Rank: 
SU
Decision Process Description: 
Originally ranked in 2010. Rank reviewed in 2014 and 2022 by R. Bennett; no change.
Last Updated: 
September 17, 2024
Status Designations

Canada – Assessment by Committee on the Status of Endangered Wildlife in Canada

COSEWIC Status: 
-

References