Trachelas

Trachelas
T. tranquillus
T. minor
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Araneomorphae
Family:	Trachelidae
Genus:	Trachelas L. Koch, 1872[1]
Type species
T. minor O. Pickard-Cambridge, 1872
Species
99, see text

Trachelas is a genus of araneomorph spiders which has variously been placed in families Trachelidae or Corinnidae. Current taxonomy places it in Trachelidae.^[2][3]

Though the name was first used in an identification key published by Ludwig Carl Christian Koch in 1866,^[4] it did not include a description for either genders. In 1872, O. Pickard-Cambridge described the type species, ascribing it to the same name given several years earlier.^[5] Koch revisited the genus and covered it more thoroughly shortly after the type species was described.^[6]

Species

As of October 2025^[update], this genus includes 99 species.^[1]

These species have articles on Wikipedia:

• Trachelas oreophilus Simon, 1906 – India, Sri Lanka
• Trachelas pacificus Chamberlin & Ivie, 1935 – United States, Mexico
• Trachelas quisquiliarum Simon, 1906 – Sri Lanka
• Trachelas tranquillus (Hentz, 1847) – Canada, United States
• Trachelas volutus Gertsch, 1935 – United States, Mexico

Complete species list as of October 2025^[update]

Trachelas alticola Hu, 2001 – China Trachelas anomalus (Taczanowski, 1874) – French Guiana Trachelas barroanus Chamberlin, 1925 – Panama Trachelas bicolor Keyserling, 1887 – Hispaniola (Haiti, Dominican Rep.) Trachelas bispinosus F. O. Pickard-Cambridge, 1899 – Mexico to Panama, Trinidad Trachelas bomiensis Jin & Mi, 2024 – China Trachelas borinquensis Gertsch, 1942 – Puerto Rico Trachelas brachialis Jin, Yin & Zhang, 2017 – China Trachelas bravidus Chickering, 1973 – Jamaica Trachelas bulbosus F. O. Pickard-Cambridge, 1899 – Mexico to El Salvador Trachelas cadulus Chickering, 1973 – Jamaica Trachelas cambridgei Kraus, 1955 – El Salvador to Panama Trachelas canariensis Wunderlich, 1987 – Spain, Canary Islands, Morocco, Algeria, Tunisia, Ethiopia, DR Congo, Uganda, Kenya, Rwanda, Angola, Botswana, South Africa, Lesotho Trachelas chamoli Quasin, Siliwal & Uniyal, 2018 – India Trachelas chubbi Lessert, 1921 – Cameroon, DR Congo, Kenya, Burundi, Tanzania Trachelas contractus Platnick & Shadab, 1974 – Cuba Trachelas costatus O. Pickard-Cambridge, 1885 – Pakistan, India Trachelas crassus Rivera-Quiroz & Álvarez-Padilla, 2015 – Mexico Trachelas crewsae Marusik & Fomichev, 2020 – Tajikistan Trachelas daubei Schmidt, 1971 – Ecuador Trachelas depressus Platnick & Shadab, 1974 – Mexico Trachelas devi Biswas & Raychaudhuri, 2000 – Bangladesh Trachelas digitus Platnick & Shadab, 1974 – Costa Rica Trachelas dilatus Platnick & Shadab, 1974 – Dominican Rep. Trachelas ductonuda Rivera-Quiroz & Álvarez-Padilla, 2015 – Mexico Trachelas ecudobus Chickering, 1973 – Panama, Trinidad Trachelas erectus Platnick & Shadab, 1974 – Haiti Trachelas falsus Haddad & Lyle, 2025 – Ivory Coast, Nigeria, Tanzania, South Africa Trachelas fanjingshan Zhang, Fu & Zhu, 2009 – China Trachelas fasciae Zhang, Fu & Zhu, 2009 – China Trachelas femoralis Simon, 1898 – St. Vincent Trachelas fuscus Platnick & Shadab, 1974 – Mexico Trachelas gaoligongensis Jin, Yin & Zhang, 2017 – China Trachelas giganteus Platnick & Shadab, 1974 – Jamaica Trachelas gigapophysis Jin, Yin & Zhang, 2017 – China Trachelas gloriamarielae D. Chamé-Vázquez & E. R. Chamé-Vázquez, 2025 – Mexico Trachelas hamatus Platnick & Shadab, 1974 – Mexico Trachelas hassleri Gertsch, 1942 – Guyana Trachelas himalayensis Biswas, 1993 – India Trachelas huachucanus Gertsch, 1942 – United States, Mexico Trachelas humus Haddad & Lyle, 2025 – Namibia, South Africa Trachelas inclinatus Platnick & Shadab, 1974 – Cuba Trachelas jamaicensis Gertsch, 1942 – Jamaica Trachelas japonicus Bösenberg & Strand, 1906 – Russia (Far East), China, Korea, Japan Trachelas kavanaughi Tang, Yan, Zhao & Peng, 2024 – China Trachelas lanceolatus F. O. Pickard-Cambridge, 1899 – Mexico Trachelas latus Platnick & Shadab, 1974 – Mexico, Guatemala Trachelas leggi Haddad & Lyle, 2025 – South Africa Trachelas longinquus Haddad & Lyle, 2025 – Central African Rep. Trachelas mexicanus Banks, 1898 – United States, Mexico Trachelas minor O. Pickard-Cambridge, 1872 – Mediterranean to Central Asia, Sierra Leone, Liberia (type species) Trachelas mombachensis Leister & Miller, 2015 – Nicaragua Trachelas mulcetus Chickering, 1973 – Jamaica Trachelas nanyueensis Yin, 2012 – China Trachelas niger Mello-Leitão, 1922 – Brazil Trachelas nigrifemur Mello-Leitão, 1941 – Colombia Trachelas oculus Platnick & Shadab, 1974 – Cuba Trachelas odoreus Rivera-Quiroz & Álvarez-Padilla, 2015 – Mexico Trachelas oreophilus Simon, 1906 – India, Sri Lanka Trachelas organatus Platnick & Shadab, 1974 – United States, Mexico Trachelas pacificus Chamberlin & Ivie, 1935 – United States, Mexico Trachelas panamanus Chickering, 1937 – Panama Trachelas parallelus Platnick & Shadab, 1974 – Nicaragua Trachelas planus Platnick & Shadab, 1974 – Costa Rica Trachelas prominens Platnick & Shadab, 1974 – Mexico to Panama Trachelas pusillus Lessert, 1923 – South Africa, Lesotho Trachelas quadridens Kraus, 1955 – El Salvador, Costa Rica Trachelas quisquiliarum Simon, 1906 – Sri Lanka Trachelas robustus Keyserling, 1891 – Brazil Trachelas rotundus Platnick & Shadab, 1974 – Mexico Trachelas rugosus Keyserling, 1891 – Brazil Trachelas russellsmithi Haddad & Lyle, 2025 – Ethiopia Trachelas santaemartae Schmidt, 1971 – Colombia Trachelas scutatus Haddad & Lyle, 2025 – Ghana, Nigeria Trachelas shilinensis Jin, Yin & Zhang, 2017 – China Trachelas similis F. O. Pickard-Cambridge, 1899 – USA to Costa Rica Trachelas sinensis Chen, Peng & Zhao, 1995 – China Trachelas sinuosus Platnick & Shadab, 1974 – United States Trachelas smithi Haddad & Lyle, 2025 – Kenay Trachelas speciosus Banks, 1898 – Mexico Trachelas spicus Platnick & Shadab, 1974 – Mexico Trachelas spinulatus F. O. Pickard-Cambridge, 1899 – Guatemala, El Salvador, Nicaragua Trachelas spirifer F. O. Pickard-Cambridge, 1899 – Guatemala, Honduras Trachelas submissus Gertsch, 1942 – Paraguay Trachelas sylvae Caporiacco, 1949 – Cameroon, DR Congo, Uganda, Kenya Trachelas tanasevitchi Marusik & Kovblyuk, 2010 – Russia (Far East) Trachelas tomaculus Platnick & Shadab, 1974 – Cuba, Haiti Trachelas tranquillus (Hentz, 1847) – Canada, United States Trachelas transversus F. O. Pickard-Cambridge, 1899 – Mexico, Costa Rica Trachelas triangulus Platnick & Shadab, 1974 – Panama Trachelas tridentatus Mello-Leitão, 1947 – Brazil Trachelas trifidus Platnick & Shadab, 1974 – Panama Trachelas truncatulus F. O. Pickard-Cambridge, 1899 – Mexico Trachelas uniaculeatus Schmidt, 1956 – Canary Islands Trachelas ventriosus Tang, Yan, Zhao & Peng, 2024 – China Trachelas vitiosus Keyserling, 1891 – Brazil Trachelas volutus Gertsch, 1935 – United States, Mexico Trachelas vulcani Simon, 1896 – China, Japan, Indonesia (Java, Moluccas) Trachelas zhui Li, Wang, Zhang & Chen, 2019 – China

References

1. "Gen. Trachelas L. Koch, 1872". World Spider Catalog. doi:10.24436/2. Retrieved 2025-10-19.
2. Ramírez, M. J. (2014). "The morphology and phylogeny of dionychan spiders (Araneae: Araneomorphae)". Bulletin of the American Museum of Natural History. 390: 342. doi:10.1206/821.1. hdl:11336/18066. S2CID 86146467.
3. Platnick, Norman I.; Shadab, Mohammad Umar (1974). A revision of the tranquillus and speciosus groups of the spider genus Trachelas (Araneae, Clubionidae) in North and Central America. American Museum novitates; no. 2553. American Museum of Natural History. hdl:2246/5449.
4. Koch, L. (1866). Die Arachniden-Familie der Drassiden. p. 2.
5. Pickard-Cambridge, O. (1872). "General list of the spiders of Palestine and Syria, with descriptions of numerous new species, and characters of two new genera". Proceedings of the Zoological Society of London. 40 (1): 212–354.
6. Koch, L. (1872). "Apterologisches aus dem fränkischen Jura". Abhandlungen der Naturhistorischen Gesellschaft zu Nürnberg. 5: 146.

External links

• Citizen science observations for Trachelas at iNaturalist
• Trachelas at BugGuide