Trichocylliba

Dorsal (left) and ventral views of male Trichocylliba, from Ohio State University.

Belongs within: Uropodoidea.

Trichocylliba is a genus of uropodoid mites associated with roaming ants as adults and exhibiting a number of specialisations for attaching to their hosts (Lindquist et al. 2009).

Characters (from Evans & Till 1979): Dorsum covered by a single shield, idiosoma without a defined marginal shield; forked pilus dentilis absent; levator tendon of movable finger of chelicera with sclerotised node; palpfemur with five setae; intercoxal region bearing five pairs of setae; pedofossae present; femur I with nine setae; genu I with a pair of ventral setae; genua III and IV without ventral setae.

<==Trichocylliba Berlese 1904 LKW09, FH93 [=Thrichocylliba FH93; incl. Panamatrichocylliba Hirschmann 1979 FH93; Planodiscini]
    |--*T. (Trichocylliba) comata (Leonardi 1895) ET79 [=Discopoma comata FH93]
    |--T. (Circocylliba Sellnick 1926) FH93
    |    `--T. (C.) krantzi Hirschmann 1975 LKW09, FH93
    |--T. (Coxequesoma Sellnick 1926) FH93
    |    `--T. (C.) panamaensis Hirschmann 1975 LKW09, FH93
    `--T. (Planodiscus Sellnick 1926) FH93
         |--T. (*P.) squamata (Sellnick 1926) LKW09, ER66 [=*Planodiscus squamatim ER66, P. squamatum ER66]
         `--T. (P.) burchelli (Elzinga & Rettenmeyer 1966) FH93, ER66 [=Planodiscus burchelli FH93]

Trichocylliba incertae sedis:
  T. ablesi Hirschmann 1973 FH93
  T. chiapensis Elzinga 1982 FH93
  T. crinita (Elzinga & Rettenmeyer 1975) [=Circocylliba crinita] FH93
  T. ecitonis (Elzinga & Rettenmeyer 1975) [=Circocylliba ecitonis] FH93
  T. elongata (Elzinga & Rettenmeyer 1970) [=Planodiscus elongatus] FH93
  T. elzingai Hirschmannn 1973 FH93
  T. foreli (Elzinga & Rettenmeyer 1970) [=Planodiscus foreli] FH93
  T. hamata (Elzinga & Rettenmeyer 1970) [=Planodiscus hamatus] FH93
  T. hirsuta (Banks 1902) [=Discopoma hirsuta] FH93
  T. hirticoma (Berlese 1903) [=Discopoma hirticoma] FH93
  T. minuta (Elzinga & Rettenmeyer 1975) [=Circocylliba minuta] FH93
  T. oligochaeta (Elzinga & Rettenmeyer 1975) [=Circocylliba oligochaeta] FH93
  T. praedator Elzinga 1982 FH93
  T. schneirlai Elzinga 1982 FH93
  T. umbocauda (Elzinga 1982) [=Coxequesoma umbocauda] FH93
  T. watkinsi Elzinga 1982 FH93

*Type species of generic name indicated

REFERENCES

[ER66] Elzinga, R. J., & C. W. Rettenmeyer. 1966. A neotype and new species of Planodiscus (Acarina: Uropodina) found on doryline ants. Acarologia 8 (2): 191–199.

[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.

[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 3^rd ed. pp. 124–232. Texas Tech University Press.