Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 71. (Budapest 1979)
Balogh, J. ; Mahunka, S.: New taxa in the system of the Oribatida (Acari)
New Taxa in the System of the Oribatida (Acari) by J. BALOGH & S. MAHUNKA, Budapest Abstract — The results of systematical and taxonomical studies on Oribatid mites are given. Two new suborders (Archoribatida, Euoribatida ), supercohors (Parhyposomata, Holosomaîa) and cohors (Dichosomata, Euarthronota ) are introduced in the modified system of the more primitive Oribatid groups. In the families Phthiracaridae, Protoplophoridae and Epilohmanniidae 2 new genera and 1 subgenus respectively are erected (Archiphthiracarus gen. n., Grandjeanoplophora gen. n. and Sinolohmannia subgen. n.). Investigations of Oribatids from soil samples collected in different parts of Hungary resulted in 7 new species. With 22 figures. In the course of a comprehensive study on the Oribatid fauna of Hungary we found it necessary to give a more exact description of some higher taxa, to fix their nomenclature, as well as to establish some new taxa. Since our work is to be published in Hungarian, the descriptions of the new taxa will, in corformity with international courtesy, be first given here in one of the congress languages. That is the sole aim of the present short paper. The phylogenetical system of the "primitive Oribatei" constructed by GRANDJEAN and his followers represents rather adequately the real relationships existing among the taxa of this group, whereas the system of the "higher Oribatei" seems chaotic. Since the first part of our work on the Hungarian Oribatids deals with the "primitive Oribatei", we can more or less follow the abovementioned authors. We must openly state, however, that concerning the "higher Oribatei" we are at present unable to submit a similarly constructed phylogenetic system and must therefore rest content with an artificial one. The "primitive Oribatei" are characterized by a primordial organization and by a great number of monotypic taxa. Therefore their system is largely discontinuous particularly on the superfamiliar and familiar levels. Especially the cohors Arthronota is rich in monotypic superfamilies. The higher taxa of this paper have already been applied in the system of Oribatei as conceived by previous authors, yet under other names or defined otherwise. E.g. the new subordo here introduced under the name Archoribatida is the same as the "primitive Oribatei", the new subordo Euoribatida is an equivalent of the "higher Oribatei". It seems reasonable to arrange the superfamilies constituting the Archoribatids in 5 greater groups; concerning their taxonomic status we consider them as supercohors. Two of them are less homogeneous: Arthronota BALOGH 1972, and Mixonomata GRANDJEAN 1969; both are now subdivided into 2 subgroups (cohors). Supercohors 1 : Palaeosomata GRANDJEAN, 1969. A rather homogeneous group of Oribatids. In our opinion these Oribatids of "palaeoacarid" origanization represent the most primordial (archaic) type of the Oribatids. 6 families grouped into 3 superfamilies belong in this supercohors. Supercohors 2: Arthronota BALOGH, 1972, includes the arthronotic Oribatids. In agreement with GRANDJEAN and other oribatidologists we consider arthronoty as a more primitive character than ptychoidy and therefore, in our opinion, the cohors erected by GRANDJEAN in 1967 for the arthronotic Ptyctims should be united with the new cohors
