Erginulus

Erginulus is a genus of harvestmen in the family Cosmetidae with twenty-nine described species (as of early 2025).^[1][2] The species are from eastern Mexico & Northern Central America, although a few have been described from outlying geographic regions.^[1][3][4]

Erginulus
Erginulus subserialis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Opiliones
Family:	Cosmetidae
Subfamily:	Metergininae
Genus:	Erginulus Roewer, 1912
Type species
Erginus serratipes Roewer, 1912
Diversity
29 spp. (see text)
Synonyms
List Euerginus Roewer, 1912 Acromares Goodnight & Goodnight, 1942 Bivonones Goodnight & Goodnight, 1942

Description

The genus Erginulus was described by Roewer, 1912 with the type species Erginus serratipes Roewer, 1912. The genus was later included in the subfamily Metergininae.^[5]

Species

These species belong to the genus Erginulus:

• Erginulus arcuatus (Pickard-Cambridge, 1905) – Guatemala
• Erginulus australis (Roewer, 1916) – Colombia
• Erginulus bimaculatus Goodnight & Goodnight, 1977 – Mexico (Campeche)
• Erginulus biserratus Roewer, 1947 – Guatemala
• Erginulus brevispinosus Goodnight & Goodnight, 1947 – Honduras
• Erginulus castaneus (Banks, 1906) – Bahamas
• Erginulus centralis (Sørensen, 1932) – Mexico (Durango, later allegedly Tamaulipas)
• Erginulus clavipes (Pickard-Cambridge, 1905) – Guatemala, Mexico
• Erginulus clavotibialis (Pickard-Cambridge, 1905) – Mexico (Yucatán, etc), Guatemala, Belize
• Erginulus crassescens (Pickard-Cambridge, 1905) – Guatemala
• Erginulus cristatus (Pickard-Cambridge, 1905) – Guatemala
• Erginulus erectispinus (Pickard-Cambridge, 1905) – Guatemala
• Erginulus figuratus (Roewer, 1947) – Costa Rica
• Erginulus gervaisii (Sørensen, 1932) – Mexico (Yucatán)
• Erginulus leviarcuatus (Sørensen, 1932) – Mexico (Veracruz)
• Erginulus pectiginerus (Pickard-Cambridge, 1905) – Guatemala, Honduras
• Erginulus pulcher Goodnight & Goodnight, 1942 – Mexico (Veracruz)
• Erginulus quadricristatus (Franganillo Balboa, 1926) – Cuba
• Erginulus rectus (Pickard-Cambridge, 1905) – Guatemala
• Erginulus roeweri (Goodnight & Goodnight, 1947) – Mexico (Yucatán)
• Erginulus serratifer (Pickard-Cambridge, 1905) – Guatemala
• Erginulus serratipes (Pickard-Cambridge, 1905) – Guatemala
• Erginulus serratofemoralis Goodnight & Goodnight, 1947 – Belize
• Erginulus simplicipes (Pickard-Cambridge, 1905) – Guatemala
• Erginulus singularis Goodnight & Goodnight, 1977 – Belize
• Erginulus sinuosus (Pickard-Cambridge, 1905) – Guatemala
• Erginulus subserialis (Pickard-Cambridge, 1905) – Mexico (Chiapas), Guatemala, El Salvador, Costa Rica
• Erginulus triangularis (Pickard-Cambridge, 1905) – Guatemala
• Erginulus weyerensis Goodnight & Goodnight, 1977 – Belize

Etymology

The genus is masculine.