Arctoseius Thor 1930 ...

• Main Authors: Makarova, Olga L., Huhta, Veikko
• Format: Text
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Mesostigmata; Ascidae; Arctoseius; Huhta; Fennoscandia; taiga
• Online Access: https://dx.doi.org/10.5281/zenodo.6024014; https://zenodo.org/doi/10.5281/zenodo.6024014

Key to species of Arctoseius Thor, 1930 of Fennoscandia, North-Western Europe The key is mainly based on females, but reliable identification often requires investigation of males. Total length refers to length of dorsal shield. 1. Gnathotectum biramous; incisions of dorsal shield very deep, their length about 1/3 of dorsal shield width; tibia IV with six setae; peritremes not extending anteriorly beyond mid-level of coxae II; in female sternal shield weakly sclerotized, lacking endopodal elements, nearly rectangular................................................................... 2 - Gnathotectum triramous; incisions of dorsal shield shorter or absent; tibia IV with seven setae (exception A. sexsetus); peritremes of different length; sternal shield with or without angular extensions formed by endopodal elements between coxae I–II and II–III........................................................................................... 4 2. Dorsal shield setae longer, most of them extending to base of next ... : Published as part of Makarova, Olga L. & Huhta, Veikko, 2017, A new species of Arctoseius Thor, 1930 (Acari: Ascidae) from taiga regions of the Palaearctic, with a key to Arctoseius species of Fennoscandia, NW Europe, pp. 554-562 in Zootaxa 4268 (4) on pages 559-560, DOI: 10.11646/zootaxa.4268.4.6, http://zenodo.org/record/580966 ...