Family HETEROCHEYLIDAE Trägårdh, 1950

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• Heterocheylinae Trägårdh, I. 1950. Description of a new species of Heterocheylus Lombardini from Africa, with notes on the classification of the Pseduocheyletidae. Entomologisk Tidskrift 71: 104-110.

Introduction

The family Heterocheylidae includes a single genus and 25 species, all of which are found under the elytra of beetles in the family Passalidae (Walter et al. 2009). They appear to be symbiotic rather than parasitic, but their feeding habits have not been studied. The most substantial taxonomic work on the family is by Schuster & Lavoipierre (1970), and Lindquist & Kethley (1975) reviewed the taxonomic placement of the family. Two species are known from Australia, and Schuster & Lavoipierre (1970) mentioned a single specimen that may represent a third species.

General References

Lindquist, E.E. & Kethley, J.B. 1975. The systematic position of the Heterocheylidae Trägårdh (Acari: Acariformes: Prostigmata). The Canadian Entomologist 107: 887–898

Schuster, R.O. & Lavoipierre, M.M.J. 1970. The mite family Heterocheylidae Trågärdh. Occasional Papers of the California Academy of Sciences 85: 1–42

Walter, D.E., Lindquist, E.E., Smith, I.M., Cook, D.R. & Krantz, G.W. 2009. Order Trombidiformes. pp. 233-420 in Krantz, G.W. & Walter, D.E. (eds). A Manual of Acarology. Lubbock, Texas : Texas Tech University Press Third edition, 807 pp.

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