Ameroseius sp., copyright G. K. Gerber.

Belongs within: Gamasina.

The Ameroseiidae are a family of mesostigmatan mites feeding on fungal or plant matter. Species may be free-living or they may be found in association with insects or birds. Some Ameroseius are associated with bracket fungi and/or decaying wood. The cosmopolitan Ameroseius plumosus feeds on fungi in animal nests and food stores, and has been reported as a nuisance when damp conditions have lead to numbers reaching infestation level. Species of Hattena have been found around the nares and beak of nectar-feeding birds, probably as part of a phoretic association transporting the mites between flowers (Lindquist et al. 2009).

The genus Epicriopsis is characterised by a dense covering of tubercles on the holodorsal shield (Evans & Till 1979).

Characters (from Lindquist et al. 2009): Corniculi often divided distally or entire. Opisthonotum without caudal setae J5 and marginal R setae. Posterior row of deutosternal denticles extending laterally beyond insertions of capitular setae. Femur II with ten setae, including four dorsals. Female sternal shield with one or typically two pairs of setae (sternal setae 1–2); sternal setae 3 often on adjacent platelets or on soft cuticle, rarely on sternal shield; epigynal shield separate from anal shield.

    |--Afrocypholaelaps Elsen 1972H98
    |    |--*A. africanus (Evans 1963)SW95 [=Neocypholaelaps africanaSW95, A. africanaH98, N. africanusH98]
    |    |--A. lindquisti (Prasad 1968)SW95, FH93 [=Neocypholaelaps lindquistiSW95]
    |    `--A. ranomafanaensis Haitlinger 1987SW95
    |--Ameroseiella Bregetova in Ghilarov 1977FH93
    |    `--*A. apodia (Karg 1971)ET79, FH93 [=Ameroseius apodiusFH93]
    |--Brontispalaelaps Womersley 1959H98
    |    |--B. leveriLKW09
    |    `--B. marianneae Halliday 1997H98
    |--Epicriopsis Berlese 1916H98
    |    |--*E. horridus (Kramer 1876) [=Gamasus horridus]ET79
    |    |--E. palustris Karg 1971FH93
    |    `--E. walteri Halliday 1997H98
    |--Sertitympanum Elsen & Whitaker 1985FH93
    |    |--S. contiguum Elsen & Whitaker 1985FH93
    |    |--S. exarmatum Elsen & Whitaker 1985FH93
    |    `--S. separationis Elsen & Whitaker 1985FH93
    |--Hattena Domrow 1963H98 [incl. EdbarellusWB02]
    |    |--H. cometis Domrow 1979H98
    |    |--H. floricola Halliday 1997H98
    |    |--H. incisa Halliday 1997H98
    |    `--H. panopla Domrow 1966H98
    |--Neocypholaelaps Vitzthum 1942H98 [incl. Asperolaelaps Womersley 1956H98, Indoseius Evans 1955FH93]
    |    |--N. ampullulaH01
    |    |--N. apicolaH01
    |    |--N. cocos Evans 1963H98
    |    |--N. indicaH01
    |    |--N. novaehollandiae Evans 1961SL71
    |    |--N. rotundus (Womersley 1956) [=Asperolaelaps rotundus]H98
    |    `--N. stridulansH01
    `--Ameroseius Berlese 1903H98 [incl. Cornubia Turk 1943FH93, Kleemannia Oudemans 1930H98, Primoseius Womersley 1956H98]
         |--*A. echinatus (Koch 1839) [=Seius echinatus]ET79
         |--A. californicus Garman & McGregor 1956FH93
         |--A. corbiculus (Sowerby 1806)FH93 [=Acarus corbiculaFH93; incl. Seius hirsutus Koch 1836FH93, Ameroseius hirsutusS22]
         |--A. coronarius De Leon 1964FH93
         |--A. decemsetosus Micherdzinski 1965M65
         |--A. delicatus Berlese 1918 [=Kleemannia delicata]S61
         |--A. dubiatus Berlese 1918 [=Kleemannia dubiata]S61
         |--A. flagellatus Berlese 1910 [=Lasioseius flagellatus]M65
         |--A. longitrichus Hirschmann in Westerboer & Bernhard 1963FH93
         |--A. macropilis De Leon 1964FH93
         |--A. mariehigginsae De Leon 1964FH93
         |--A. ornatus Womersley 1956H98
         |--‘Zercon’ pavidus Koch 1839 [=*Kleemannia pavida]ET79
         |--A. peniphorae De Leon 1964FH93
         |--A. pennatus (Fox 1949) [=Borinquolaelaps pennatus]FH93
         |--A. plumigera (Oudemans 1930)K91, FH93 [=Kleemannia plumigeraFH93]
         |--A. plumosus (Oudemans 1902) (see below for synonymy)H98
         |--A. pulcher Westerboer 1963M65
         |--A. sculptilisK91
         `--A. vietnamensis Micherdzinski 1965M65

Ameroseius plumosus (Oudemans 1902) [=Seiulus plumosus, Kleemannia plumosa, Kleemania (l. c.) plumosus; incl. Zercoseius macauleyi Hughes 1948, Primoseius macauleyi]H98

*Type species of generic name indicated


[ET79] Evans, G. O., & W. M. Till. 1979. Mesostigmatic mites of Britain and Ireland (Chelicerata: Acari—Parasitiformes). An introduction to their external morphology and classification. Transactions of the Zoological Society of London 35: 139–270.

[FH93] Farrier, M. H., & M. K. Hennessey. 1993. Soil-inhabiting and free-living Mesostigmata (Acari—Parasitiformes) from North America: an annotated checklist with bibliography and index. North Carolina Agricultural Research Service, North Carolina State University, Technical Bulletin 302: i–xvi, 1–408.

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

[H01] Haq, M. A. 2001. Life cycle and behaviour of the coconut mite Neocypholaelaps stridulans (Evans) (Acari: Ameroseiidae). 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. 361–365. CSIRO Publishing: Melbourne.

[K91] Kohn, M. 1991. Influence of the refuse dump biotopes on ecology of some gamasoid mites and ticks. In: Dusbábek, F., & V. Bukva (eds) Modern Acarology: Proceedings of the VIII International Congress of Acarology, held in České Budĕjovice, Czechoslovakia, 6–11 August 1990 vol. 1 pp. 199–204. SPB Academic Publishing: The Hague.

[LKW09] Lindquist, E. E., G. W. Krantz & D. E. Walter. 2009. Order Mesostigmata. In: Krantz, G. W., & D. E. Walter (eds) A Manual of Acarology 3rd ed. pp. 124–232. Texas Tech University Press.

[M65] Micherdzinski, W. 1965. Two new species of Ameroseius Berlese 1903 (Mesostigmata: Ameroseiidae) from Viet-nam. Acarologia 7 (1): 17–29.

[S22] Schweizer, J. 1922. Beitrag zur Kenntnis der terrestrischen Milbenfauna der Schweiz. Verhandl. Naturf. Ges. Basel 33: 23–112, 4 pls.

[S61] Schweizer, J. 1961. Die Landmilben der Schweiz (Mittelland, Jura und Alpen): Parasitiformes Reuter, mit 246 Arten und Varietäten und 268 meist kombinierten Originalzeichnungen. Denkschriften der Schweizerischen Naturforschenden Gesellschaft [Mémoires de la Société Helvétique des Sciences Naturelles] 84: i–vii, 1–207.

[SW95] Seeman, O. D., & D. E. Walter. 1995. Life history of Afrocypholaelaps africana (Evans) (Acari: Ameroseiidae), a mite inhabiting mangrove flowers and phoretic on honeybees. Journal of the Australian Entomological Society 34: 45–50.

[SL71] Spain, A. V., & M. Luxton. 1971. Catalog and bibliography of the Acari of the New Zealand subregion. Pacific Insects Monograph 25: 179–226.

[WB02] Walter, D. E., J. J. Beard, K. L. Walker & K. Sparks. 2002. Of mites and bees: a review of mite-bee associations in Australia and a revision of Raymentia Womersley (Acari: Mesostigmata: Laelapidae), with the description of two new species of mites from Lasioglossum (Parasphecodes) spp. (Hymenoptera: Halictidae). Australian Journal of Entomology 41: 128–148.

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