Ameroseius callosus Masan , 1998

Masan, Peter, 2017, A revision of the family Ameroseiidae (Acari, Mesostigmata), with some data on Slovak fauna, ZooKeys 704, pp. 1-228 : 1

Ameroseius callosus Masan, 1998

Plate 3

Ameroseius callosus Mašán, 1998: 648.

Type depository.

Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia.

Type locality and habitat.

Slovakia, Podunajská Nížina Lowland, Brunovce, in floodplain forest, on fruiting body of willow bracket fungus, Phellinus igniarius ( Basidiomycota, Hymenochaetaceae ).

Published material from Slovakia.

Trnavská Pahorkatina Wold: Brunovce Village ( Mašán 1998).

New material from Slovakia.

Ipeľská Kotlina Basin: 1 ♀ - 23. 6. 1997, Ipeľské Predmostie Village , Ryžovisko Forest, willow-poplar flood-plain forest ( Salici-Populetum ), wood-destroying fungus Trametes sp., altitude 130 m, leg. P. Mašán. Podunajská Rovina Flatland : 4 ♀♀ - 5. 10. 2004, Bratislava Capital , Mlynské Nivy Settlement, park with willows and poplars, individual collecting on fresh wood-destroying fungi, altitude 135 m, leg. P. Mašán ; 3 ♀♀ - 14. 6. 2015, Bratislava Capital , Čunovo Settlement, wood-destroying fungus ( Phellinus sp.) growing on old walnut tree ( Juglans regia ), altitude 130 m, leg. P. Mašán. Považský Inovec Mts. : 1 ♀ - 17. 5. 1997, Hradok Village , Hrádocká Dolina Valley, broad-leaved deciduous forest, individual collecting on wood-destroying fungi, altitude 450 m, leg. P. Mašán. Trnavská Pahorkatina Wold : 1 ♀ - 18. 5. 1997, Brunovce Village , Váh River (alluvium), degraded willow-poplar flood-plain forest ( Salici-Populetum ), individual collecting on wood-destroying fungus Trametes sp., altitude 170 m, leg. P. Mašán.

Remarks.

Ameroseius callosus shows a close resemblance to Ameroseius fungicola , except for some characters of the dorsal shield (sculpture and relative length of setae). Although A. callosus may be easy and reliably separated from A. fungicola , several pieces of evidence show that this species could be only a polymorphic form and synonym of A. fungicola . This hypothesis should be confirmed by further comparative studies, based also on laboratory rearing and molecular analyses, to establish their correct systematic status. Polymorphism has been mentioned in a few mesostigmatic mites of the families Ascidae , Laelapidae , Macrochelidae and Parasitidae .

Figures

Plate 3. Ameroseius callosus, female, dorsal idiosoma.