Male Scutomegninia microfalcifera from double-crested cormorant, copyright Heather Proctor, University of Alberta.

Belongs within: Analgoidea.

The Avenzoariidae are a group of mites parasitic on the wing and tail feathers of aquatic birds (OConnor 2009). They are divided between two subfamilies, Bonnetellinae and Avenzoariinae. Bonnetellinae possess three ventral setae on the third tarsus and males have the third pair of legs larger than the fourth whereas Avenzoariinae have one ventral seta on the third tarsus and the third legs are no larger than the fourth in males (Mironov 1991). Males of the bonnetelline species Bdellorhynchus polymorphus exhibit allometric polymorphism in the chelicerae and anterior legs (OConnor 2009).

Characters (from OConnor 2009): Genu III with solenidion ς present; tibia IV with one ventral seta; tarsi with proral setae absent; ventral surface of tarsi I–II completely sclerotised; tarsus I with solenidion ω1 inserted basally; pretarsi with ambulacral stalks shorter than tarsi; ambulacral stalk with parallel sides, arising from apex of tarsus; stalk subdivided, with basal portion apically truncated, spherical distally; ambulacral discs narrowing apically, with central sclerite almost as wide as disc; lateral sclerites of ambulacral disc evenly sclerotised, without lacunae.

    |  i. s.: Ovofreyana Mironov 1995H98
    |           `--O. gladifera Mironov 1995H98
    |    |--Hemifreyana [Hemifreyaninae]M91
    |    |--Avenzoaria totaniM91, DW10
    |    |--BregetoviaM91
    |    |--Pomeranzevia ninniiM91, DW10
    |    |--PseudavenzoariaM91
    |    |--CapelloptesM91
    |    |--LaronyssusM91
    |    `--Bychovskiata Dubinin 1951M91, H98
    |         |--B. bidentata Mironov 1994H98
    |         |--B. charadrii (Canestrini 1878)H98 [=Dermaleichus charadriiH98, Pterolichus (Eupterolichus) charadriiT05]
    |         `--B. perforata Mironov 1994H98
         |    |  i. s.: S. bicalcarataM91
         |    |         S. circinigerM91
         |    |         S. oedipusM91
         |    |         S. subantarcticaO09
         |    |--S. (Scutomegninia)M91
         |    |    |--S. (S.) antarcticaM91
         |    |    |--S. (S.) chatamensisM91
         |    |    |--S. (S.) microfalciferaM91
         |    |    |--S. (S.) phalarcrocoracisM91
         |    |    |--S. (S.) pygmaeaM91
         |    |    `--S. (S.) serrulataM91
         |    `--S. (Ibidomegninia)M91
         |         |--S. (I.) ibidisM91
         |         |--S. (I.) majorM91
         |         |--S. (I.) neglectaM91
         |         |--S. (I.) perforataM91
         |         `--S. (I.) plataleaeM91
         `--+--Bdellorhynchus Trouessart 1885M91, H98
            |    `--B. polymorphus Trouessart 1885H98
            `--Zachvatkinia Dubinin 1949M91, M07
                 |--Z. (Zachvatkinia)M91
                 |    |--+--Z. (Z.) caspicaM91
                 |    |  |--Z. (Z.) chlidoniaeM91
                 |    |  |--Z. (Z.) issykkulicaM91
                 |    |  |--Z. (Z.) laricaM91
                 |    |  `--Z. (Z.) sternaeM91
                 |    `--+--Z. (Z.) hydrobatidiiM91
                 |       |--Z. (Z.) isolataM91
                 |       |--Z. (Z.) oceanodromaeM91
                 |       |--Z. (Z.) ovataM91
                 |       |--Z. (Z.) puffiniM91
                 |       |--Z. (Z.) robustaM91
                 |       |--Z. (Z.) stercorariiM91
                 |       `--Z. (Z.) trouessarti (Bonnet 1924)M91, M07
                 |--Z. (Promegninia) pedimanaM91
                 `--Z. (Rhinozachvatkinia)M91
                      |--Z. (R.) graciosaM91
                      |--Z. (R.) pelecanoidiM91
                      `--Z. (R.) zygolobaM91
Nomina nuda: Bdellorhynchus affinis Dubinin 1956H98
             Bdellorhynchus australis Dubinin 1956H98

*Type species of generic name indicated


[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.

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

[M91] Mironov, S. V. 1991. The feather mites of the family Avenzoariidae, their classification and peculiarities of their host-distributions. 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. 2 pp. 183–192. SPB Academic Publishing: The Hague.

[M07] Mironov, S. V. 2007. Phylogeny of the feather mite family Alloptidae (Astigmata, Analgoidea) and coevolutionary trends with aquatic birds. 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. 617–633. Instituto de Biología and Faculdad de Ciencias, Universidad Nacional Autónoma de México, Sociedad Latinoamericana de Acarología: México.

[O09] OConnor, B. M. 2009. Cohort Astigmatina. In: Krantz, G. W., & D. E. Walter (eds) A Manual of Acarology 3rd ed. pp. 565–657. Texas Tech University Press.

[T05] Trägårdh, I. 1905. Monographie der arktischen Acariden. In: Römer, F., & F. Schaudinn (eds) Fauna Arctica. Eine Zusammenstellun der arktischen Tierformen, mit besonder Berücksichtigung des Spitzbergen-Gebietes auf Grund der Ergebnisse der Deutschen Expedition in das Nördliche Eismeer im Jahre 1898 vol. 4 pp. 1–78. Gustav Fischer: Jena.

Leave a comment

Your email address will not be published. Required fields are marked *