Belongs within: Analgoidea.
The Alloptidae are a group of ectoparasitic mites specialised for life on the flight and covert feathers of aquatic birds (Mironov 2007). They are characterised by the presence in females of a hysteronotal shield extending to the posterior end of the opisthosoma.
Synapomorphies (from Mironov 2007): Subhmeral seta c3 posterior to humeral seta cp. Central sclerite of ambulacral disc an inverted T or Y. Male with genital apodemes well developed. Female with opisthosoma bilobate; hysteronotal shield completely covering posterior end of opisthosoma.
<==Alloptidae |--+--+--Aramolichus foliatus Peterson & Atyeo 1968M07 | | `--Psilobrephosceles ortygometrae (Canestrini 1878)M07 | `--Brephosceles Hull 1934M07, H98 | | i. s.: B. haematopi Peterson 1971H98 | |--+--B. forficiger (Megnin & Trouessart 1884)M07 | | `--+--+--B. diomedei Atyeo & Peterson 1970M07 | | | |--B. lanceolatus Peterson 1971M07 | | | `--B. marginiventris (Trouessart 1899)M07 | | `--+--Onychalloptes microphaeton (Trouessart 1885)M07 | | `--+--B. decapus (Gaud 1953)M07 | | `--B. pachyptilae Peterson 1971M07 | `--+--+--B. geranoxenus Peterson 1968M07 | | `--+--Alloptoides aythinae (Dubinin 1951)M07 | | `--+--B. anhimae Peterson 1971M07 | | `--B. lambda (Trouessart 1885)M07 | `--+--HomeobrephoscelesM07 | | |--H. discosurus (Trouessart 1886)M07 | | `--H. orthothrixM07 | `--+--Dichobrephosceles actitidis (Canestrini 1878)M07 | `--+--B. charadrii Dubinin 1951M07 | `--+--B. chaubaudi Gaud 1968M07 | `--B. haematopi Peterson 1971M07 `--+--+--OxyalginaeM07 | | |--Diomedalloptes pacificus (Peterson & Atyeo 1972)M07 | | `--OxyalgesM07 | | |--O. cardiurus Gaud & Atyeo 1966M07 | | `--O. incertus (Gaud 1952)M07 | `--+--Echinacarus [Echinacarinae]M07 | | `--E. rubidus (Trouesart 1886)M07 | `--Microspalax Mégnin & Trouessart 1884M07, H98 [Microspalacinae] | |--M. ardennae Dubinin 1949H98 | |--M. manicata (Mégnin & Trouessart 1884) [=Freyana manicata]H98 | `--M. puffini Dubinin 1949M07 `--+--Rhynchalloptes pyrgognathus Peterson & Atyeo 1977M07 `--+--+--Heterobrephosceles rapiformis Peterson & Atyeo 1977M07 | `--+--Gaudium abbreviatum (Trouessart 1885)M07 | `--+--Ibidocolus sexangularis (Peterson & Atyeo 1977)M07 | `--+--+--Anisanchus ptilotus Peterson & Atyeo 1977M07 | | `--Tauralloptes cornutus Mironov 2002M07 | `--+--Hyperpedalloptes titanopedes Dubinin 1955M07 | `--Nealloptes Gaud & Mouchet 1957M07, H98 | |--N. corymbophorus (Trouessart & Neumann 1888) [=Alloptes corymbophorus]H98 | `--N. petazophorus (Trouessart 1887)M07 `--AlloptinaeM07 |--Dinalloptes chelionatus Atyeo & Peterson 1966M07 `--+--AlloptellusM07 | |--A. coniventris (Trouesart 1887)M07 | `--A. pelecanus Dubinin 1955M07 `--+--AlloptesM07 | |--A. aschizurus Gaud 1952M07 | |--A. bisetatus (Haller 1881) [=Pterocolus bisetatus]T05 | |--A. cepphusi Dubinin 1952M07 | |--A. crassipes (Canestrini 1879)M07 (see below for synonymy) | |--A. mucronatus Trouessart 1899SL71 | `--A. phaethontis (Gmelin 1788) [=Acarus phaethontis]T05 |--+--Paradoxalloptes ibidorhynchae Mironov 1998M07 | `--+--Apodalloptes curtipes (Trouessart 1885)M07 | `--ConuralloptesM07 | |--C. chionis (Atyeo & Peterson 1967)M07 | |--C. conurus (Trouessart 1885)M07 | `--C. eurytrichus Gaud 1972M07 `--+--SternalloptesM07 | |--S. bisetatus (Haller 1882)M07 | |--S. mandei Gaud 1976M07 | `--S. stercorarii (Dubinin 1952)M07 `--+--+--Laminalloptes phaetontis (Fabricius 1775)M07 | `--Megalloptes triphyllurus Mironov & Perez 1998M07 `--+--+--Ceraturoptellus euryurus (Trouessart 1885)M07 | `--+--Ptyctalloptes claviger (Trouessart 1885)M07 | `--Spinicnemis reticulatus Mironov 2002M07 `--PlicatalloptesM07 |--P. fregatae (Atyeo & Peterson 1992)M07 |--P. plegadis Dubidin 1955M07 |--P. umbrettae (Gaud 1960)M07 `--+--P. pelecani (Dubinin 1954)M07 `--P. subcrassipes (Dubinin & Dubinina 1940)M07
Alloptes crassipes (Canestrini 1879)M07 [=Dermaleichus crassipesT05; incl. A. crassipes conurus Troessart 1885T05, A. crassipes var. conuraT05, A. bisetatus minor Trouessart 1885T05, A. crassipes var. minorT05]
*Type species of generic name indicated
References
[H98] Halliday, R. B. 1998. Mites of Australia: A checklist and bibliography. CSIRO Publishing: Collingwood.
[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.
[SL71] Spain, A. V., & M. Luxton. 1971. Catalog and bibliography of the Acari of the New Zealand subregion. Pacific Insects Monograph 25: 179–226.
[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.