Mermessus

For the town of the ancient Troad, see Mermessus (Troad).

Mermessus is a genus of spiders in the family Linyphiidae. It was first described in 1899 by O. Pickard-Cambridge. As of 2017^[update], it contains 81 species.^[1]

Mermessus
Mermessus denticulatus
M. trilobatus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Araneomorphae
Family:	Linyphiidae
Subfamily:	Erigoninae
Genus:	Mermessus Pickard-Cambridge[1]
Type species
Mermessus dentiger O. P.-Cambridge, 1899
Species
81, see text
Synonyms
Eperigone Crosby & Bishop, 1928 Parerigone Berland, 1932 (preocc.) Anerigone Berland, 1932 (nom. nov. pro Parerigone Berland, 1932) Sinoria Bishop & Crosby, 1938 Aitutakia Marples, 1960

Species

As of October 2025^[update], this genus includes 82 species:^[1]

• Mermessus agressus (Gertsch & Davis, 1937) – United States, Mexico
• Mermessus albulus (Zorsch & Crosby, 1934) – United States
• Mermessus annamae (Gertsch & Davis, 1937) – Mexico
• Mermessus antraeus (Crosby, 1926) – United States, Mexico
• Mermessus augustae (Crosby & Bishop, 1933) – Canada, United States
• Mermessus augustalis (Crosby & Bishop, 1933) – Canada, United States
• Mermessus avius (Millidge, 1987) – Mexico
• Mermessus brevidentatus (Emerton, 1909) – United States
• Mermessus bryantae (Ivie & Barrows, 1935) – North America, Cuba, Venezuela. Introduced to Azores
• Mermessus caelebs (Millidge, 1987) – Panama, Venezuela
• Mermessus coahuilanus (Gertsch & Davis, 1940) – United States, Mexico
• Mermessus cognatus (Millidge, 1987) – Mexico to Costa Rica
• Mermessus colimus (Millidge, 1987) – Mexico
• Mermessus comes (Millidge, 1987) – Mexico
• Mermessus conexus (Millidge, 1987) – Mexico
• Mermessus conjunctus (Millidge, 1991) – Brazil
• Mermessus contortus (Emerton, 1882) – United States
• Mermessus datangensis Irfan, Zhang & Peng, 2022 – China
• Mermessus denticulatus (Banks, 1898) – Canada to Peru, Caribbean. Introduced to Europe, North Africa, Turkey
• Mermessus dentiger O. Pickard-Cambridge, 1899 – USA to Guatemala, Caribbean (type species)
• Mermessus dentimandibulatus (Keyserling, 1886) – Colombia, Peru
• Mermessus dominicus (Millidge, 1987) – Dominican Rep.
• Mermessus dopainus (Chamberlin & Ivie, 1936) – Mexico
• Mermessus entomologicus (Emerton, 1911) – Canada, United States
• Mermessus estrellae (Millidge, 1987) – Mexico
• Mermessus facetus (Millidge, 1987) – Costa Rica
• Mermessus floridus (Millidge, 1987) – United States
• Mermessus formosus (Millidge, 1987) – Mexico
• Mermessus fractus (Millidge, 1987) – Costa Rica
• Mermessus fradeorum (Berland, 1932) – North America. Introduced to Galapagos, Uruguay, Azores, Cyprus, South Africa, Saudi Arabia, China, New Zealand
• Mermessus fuscus (Millidge, 1987) – Mexico
• Mermessus hebes (Millidge, 1991) – Venezuela
• Mermessus holda (Chamberlin & Ivie, 1939) – Canada, United States
• Mermessus hospita (Millidge, 1987) – Mexico
• Mermessus ignobilis (Millidge, 1987) – Mexico
• Mermessus imago (Millidge, 1987) – Mexico
• Mermessus index (Emerton, 1914) – Canada, United States
• Mermessus indicabilis (Crosby & Bishop, 1928) – Canada, United States
• Mermessus inornatus (Ivie & Barrows, 1935) – United States
• Mermessus insulsus (Millidge, 1991) – Peru
• Mermessus jona (Bishop & Crosby, 1938) – Canada, United States
• Mermessus leoninus (Millidge, 1987) – Mexico
• Mermessus libanus (Millidge, 1987) – Mexico
• Mermessus lindrothi (Holm, 1960) – Alaska
• Mermessus maculatus (Banks, 1892) – Russia (Commander Is.), Canada to Guatemala
• Mermessus maderus (Millidge, 1987) – United States
• Mermessus major (Millidge, 1987) – United States
• Mermessus mediocris (Millidge, 1987) – Canada, United States
• Mermessus medius (Millidge, 1987) – Mexico
• Mermessus merus (Millidge, 1987) – Mexico
• Mermessus mniarus (Crosby & Bishop, 1928) – United States
• Mermessus modicus (Millidge, 1987) – United States
• Mermessus montanus (Millidge, 1987) – Mexico
• Mermessus monticola (Millidge, 1987) – Mexico
• Mermessus moratus (Millidge, 1987) – Mexico
• Mermessus naniwaensis (Oi, 1960) – China, Korea, Japan
• Mermessus niger (Millidge, 1991) – Colombia
• Mermessus obscurus (Millidge, 1991) – Colombia
• Mermessus orbus (Millidge, 1987) – Mexico
• Mermessus ornatus (Millidge, 1987) – Mexico
• Mermessus paludosus (Millidge, 1987) – Canada
• Mermessus paulus (Millidge, 1987) – United States
• Mermessus perplexus (Millidge, 1987) – Mexico
• Mermessus persimilis (Millidge, 1987) – Mexico
• Mermessus pinicola (Millidge, 1987) – Mexico
• Mermessus probus (Millidge, 1987) – Mexico
• Mermessus proximus (Keyserling, 1886) – Peru
• Mermessus rapidulus (Bishop & Crosby, 1938) – Nicaragua, Costa Rica, Panama
• Mermessus singularis (Millidge, 1987) – Mexico
• Mermessus socius (Chamberlin, 1949) – United States
• Mermessus sodalis (Millidge, 1987) – United States
• Mermessus solitus (Millidge, 1987) – United States
• Mermessus solus (Millidge, 1987) – Mexico
• Mermessus subantillanus (Millidge, 1987) – Guadeloupe
• Mermessus taibo (Chamberlin & Ivie, 1933) – Canada, United States
• Mermessus tenuipalpis (Emerton, 1911) – Canada, United States
• Mermessus tepejicanus (Gertsch & Davis, 1937) – Mexico
• Mermessus tibialis (Millidge, 1987) – United States
• Mermessus tlaxcalanus (Gertsch & Davis, 1937) – Mexico
• Mermessus tridentatus (Emerton, 1882) – Canada, United States, Puerto Rico
• Mermessus trilobatus (Emerton, 1882) – North America. Introduced to Azores, Europe
• Mermessus undulatus (Emerton, 1914) – Canada, United States

See also

• List of Linyphiidae species