Tydeus sp., copyright Leena Leskinen.

Belongs within: Prostigmata.
Contains: Procurvata.

The Tydeidae are a diverse group of free-living mites, many of which are notably resistant to desiccation. They may be more or less omnivorous in diet, with some species having been recorded feeding on a variety of animal, plant or fungal foods (Walter et al. 2009). The Tydeidae are characterised by a loss of eugenital setae in females and a reduction of the cis-acetabulal area between the genital discs. However, monophyly of this group relative to the families Iolinidae and Ereynetidae (together forming the clade Procurvata) has been questioned because of the uncertain position of the distinctive species Australotydeus kirstenae (André & Fain 2000).

Characters (from Walter et al. 2009): Median eyespot and naso absent. Movable digit of chelicerae stylet-like. Legs I with claws; tarsus I without famulus, solenidia erect. Epimeral seta 3d usually present. Adults with two pairs of genital papillae; males without aedeagus.

<==Tydeidae [Tydidae]
    |--Australotydeus [Australotydeinae] AF00
    |    `--A. kirstenae AF00
    `--+--Procurvata AF00
       `--+--Pretydeinae AF00
          |    |--Prelorryia indoniensis AF00, A05
          |    `--Pretydeus panitae A05
          `--Tydeinae AF00
               |--Afrotydeus Baker 1970 ACW01, A05
               |    `--A. munsteri ACW01
               |--Calotydeus Oudemans 1937 [incl. Homeotydeus André 1980, Pseudolorryia Kaźmierski 1989] A05
               |    |--*C. croceus (Linnaeus 1758) (see below for synonymy) A05
               |    |--‘Homeotydeus’ shawi ACW01
               |    `--C. xylocopae Oudemans 1926 A05
               |--Lorryia Oudemans 1925 A05
               |    |--*L. superba Oudemans 1925 A05
               |    |--L. concinnus Oudemans 1929 A05
               |    |--L. ferula WL09
               |    |--L. floridensis ACW01
               |    |--L. formosa ACW01
               |    |--L. leptonychotes P94
               |    |--L. mali Oudemans 1929 A05
               |    |--L. marcandrei ACW01
               |    |--L. montrealensis WL09
               |    |--L. polaris P94
               |    |--L. pulcher Oudemans 1929 A05
               |    |--L. reticulata (Oudemans 1928) A05 [=Tydeus reticulatus A05; incl. L. bedfordiensis WL09]
               |    |--L. schusteri WL09
               |    |--L. turrialbensis A05
               |    `--L. woolleyi DW10
               `--Tydeus Koch 1836 [incl. Orthotydeus André 1980] A05
                    |--*T. spathulatus Oudemans 1928 [=Orthotydeus spathulatus] A05
                    |--T. australensis Baker 1970 H98
                    |--T. bakeri K90
                    |--‘Orthotydeus’ bkaasifrini Bayan 1986 ACW01
                    |--T. californicus (Banks 1904) N07 [=Orthotydeus californicus ACW01]
                    |--T. caudatus (Dugès 1834) [=Tetranychus caudatus, Orthotydeus caudatus] A05
                    |--T. curtus Berlese 1910 SB63
                    |--T. foliorum [=Acarus foliorum; incl. Ty. albellus, Tetranychus virburni] CF77
                    |--T. gloveri [=Orthotydeus gloveri] ACW01
                    |--T. goetzi A05
                    |--T. interruptus Thor 1932 H98
                    |--T. kochi Oudemans 1928 (n. d.) [=Orthotydeus kochi] A05
                    |--‘Orthotydeus’ lindquisti WP99
                    |--T. longisetosus N07
                    |--T. molestus WL09
                    |--T. mumai ACW01
                    |--T. mutabilis Koch 1838 [=Brachytydeus mutabilis] A05
                    |--T. nicaraguensis M-PV-G01
                    |--T. nieuwkerkeni André 2005 A05
                    |--T. olivaceus Koch 1838 A05
                    |--T. schusteri [=Pertydeus schusteri] S79
                    |--T. shawi ACW01
                    |--T. tilbrooki K09
                    |--T. tuttlei Baker 1965 A05
                    |--T. velox Koch 1836 (n. d.) A05
                    |--t. womersleyi Thor 1932 H98
                    `--T. xylocopae A05

Tydeidae incertae sedis:
  Paralorryia Baker 1965 A05
    `--P. eharai Baker 1968 C-RSV-S88
  Tectotydeus Oudemans 1937 A05
    `--*T. demeyeri (Oudemans 1929) [=Tydeus demeyeri] A05
  Brachytydeus Thor 1931 [incl. Raphitydeus Thor 1933] A05
    `--*B. cruciatus (Koch 1838) [=Tydeus cruciatus, Lorryia cruciata] A05
  Stylotydeus Thor 1933 A05
  Lasiotydaeus Berlese 1908 A05
  Eotydeus A05
  Melissotydeus macrosolenus André 1985 A05
  Venilia liberta WL09
  Metalorryia palpsetosa N07
  Retetydeus G38a
    |--R. catenulatus G38b
    `--R. viviparus Thor 1931 G38a
  Ereynetoides watsoni P94

*Calotydeus croceus (Linnaeus 1758) [=Acarus croceus, Homeotydeus croceus, Orthotydeus croceus, Pseudolorryia crocea, Tydeus croceus] A05

*Type species of generic name indicated


[ACW01] Aguilar, H., C. C. Childers & W. C. Welbourn. 2001. Relative abundance and seasonal occurrence of mites in the family Tydeidae on citrus in Florida. In: Halliday, R. B., D. E. Walter, H. C. Proctor, R. A. Norton & M. J. Colloff (eds) Acarology: Proceedings of the 10th International Congress pp. 376–380. CSIRO Publishing: Melbourne.

[A05] André, H. M. 2005. In search of the true Tydeus (Acari, Tydeidae). Journal of Natural History 39 (13): 975–1001.

[AF00] André, H. M., & A. Fain. 2000. Phylogeny, ontogeny and adaptive radiation in the superfamily Tydeoidea (Acari: Actinedida), with a reappraisal of morphological characters. Zoological Journal of the Linnean Society 130: 405–448.

[CF77] Canestrini, G., & F. Fanzago. 1877. Intorno agli Acari Italiani. Atti del Reale Istituto Veneto di Scienze, Lettere ed Arti, Serie 5, 4: 69–208, pls 2–7.

[C-RSV-S88] Corpuz-Raros, L. A., G. C. Sabio & M. Velasco-Soriano. 1988. Mites associated with stored products, poultry houses and house dust in the Philippines. Philippine Entomologist 7 (3): 311–321.

[DW10] Dabert, M., W. Witalinski, A. Kazmierski, Z. Olszanowski & J. Dabert. 2010. Molecular phylogeny of acariform mites (Acari, Arachnida): strong conflict between phylogenetic signal and long-branch attraction artifacts. Molecular Phylogenetics and Evolution 56 (1): 222–241.

[G38a] Grandjean, F. 1938a. Retetydeus et les stigmates mandibulaires des acariens prostigmatiques. Bulletin du Muséum National d’Histoire Naturelle, 2e Série 10 (3): 279–286.

[G38b] Grandjean, F. 1938b. Au sujet de la néotenie chez les acariens. Comptes Rendus des Séances de l'Académie des Sciences 207: 1347–1350.

[H98] Halliday, R. B. 1998. Mites of Australia: A checklist and bibliography. CSIRO Publishing: Collingwood.

[K90] Kethley, J. 1990. Acarina: Prostigmata (Actinedida). In: Dindal, D. L. (ed.) Soil Biology Guide pp. 667–756. John Wiley & Sones: New York.

[K09] Krantz, G. W. 2009. Habits and habitats. In: Krantz, G. W., & D. E. Walter (eds) A Manual of Acarology 3rd ed. pp. 64–82. Texas Tech University Press.

[M-PV-G01] Montiel-Parra, G., G. A. Villegas-Guzman, M. Vargas & O. J. Polaco. 2001. Mites associated with nests of Neotoma albigula Hartley, 1894 (Rodentia: Muridae) in Durango, México. In: Halliday, R. B., D. E. Walter, H. C. Proctor, R. A. Norton & M. J. Colloff (eds) Acarology: Proceedings of the 10th International Congress pp. 586–593. CSIRO Publishing: Melbourne.

[N07] Niemczyk, E. 2007. Species, occurrence and role of tydeid mites (Acari: Tydeidae) in apple orchards. In: Morales-Malacara, J. B., V. M. Behan-Pelletier, E. Ueckermann, T. M. Pérez, E. G. Estrada-Venegas & M. Badii (eds) Acarology XI: Proceedings of the International Congress pp. 365–372. Instituto de Biología and Faculdad de Ciencias, Universidad Nacional Autónoma de México, Sociedad Latinoamericana de Acarología: México.

[P94] Pugh, P. J. A. 1994. Non-indigenous Acari of Antarctica and the sub-Antarctic islands. Zoological Journal of the Linnean Society 110: 207–217.

[S79] Schuster, R. 1979. Soil mites in the marine environment. Recent Advances in Acarology 1: 593–602.

[SB63] Schweizer, J., & C. Bader. 1963. Die Landmilben der Schweiz (Mittelland, Jura und Alpen): Trombidiformes Reuter, mit 217 Arten und Unterarten und 193 Originalzeichnungen. Denkschriften der Schweizerischen Naturforschenden Gesellschaft [Mémoires de la Société Helvétique des Sciences Naturelles] 84 (2): i–vi, 209–378.

[WL09] Walter, D. E., E. E. Lindquist, I. M. Smith, D. R. Cook & G. W. Krantz. 2009. Order Trombidiformes. In: Krantz, G. W., & D. E. Walter (eds) A Manual of Acarology 3rd ed. pp. 233–420. Texas Tech University Press.

[WP99] Walter, D. E., & H. C. Proctor. 1999. Mites: Ecology, Evolution and Behaviour. CABI Publishing: Wallingford (UK).

Last updated: 23 April 2018.

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