The subfamily Typhlodrominae Wainstein (Mesostigmata: Phytoseiidae) in the Serra do Espinhaço, Brazil, with the description of a new genus and two new species

ABSTRACT

Eleven species of the subfamily Typhlodrominae from the Serra do Espinhaço in Brazil are reported. The new monotypic genus Corynoseius Ferragut gen. nov., is described to accommodate the new species C. brasiliensis Ferragut sp. nov. The new genus can be distinguished by several morphological features, unique in the family Phytoseiidae or shared with other genera in the subfamilies Amblyseiinae and Typhlodrominae, such as (1) a long and extensible gnathosoma by the presence of a basal gnathobrachium and a very long gnathosomatic base; (2) a cheliceral groove longitudinally arranged on the paraxial face of the second cheliceral segment and having internal digitiform papillae; (3) setae R1 inserted on the dorsal shield, at the level of or slightly anterior to the insertions of setae Z1; (4) setae Z4 and Z5 club-shaped, with a long and flexible stalk; (5) a reduced, vase-shaped, ventrianal shield with two pairs of preanal setae; (6) caudoventral setae JV3 and ZV3 absent; (7) setae JV5 and poroids ivp anteriorly displaced and located next to the posterolateral margin of the ventrianal shield. Furthermore, a new species of the genus Typhloseiopsis, T. juquinha Ferragut sp. nov., possessing a combination of characters that expand the genus concept, is described.http://www.zoobank.org/urn:lsid:zoobank.org:pub:50B6AA4A-9E1C-484A-ADE1-6369E4FF9C6D

KEYWORDS:

• Taxonomy
• Neotropical
• Typhlodromus
• Typhloseiopsis
• Leonseius
• Galendromus
• Typhlodromina
• Metaseiulus

Acknowledgments

To Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil, for granting the fellowship to the second author (DN) (PP, Process Nº 3121322017–4). We wish to thank Dr. Shahrooz Kazemi for his valuable comments on the external cheliceral groove of Corynoseius brasiliensis.

Disclosure statement

No potential conflict of interest was reported by the authors.

Legal requirements

The biological material was collected under the Brazilian government official authorization conceded to D. Navia by Chico Mendes Institute for Biodiversity Conservation, Ministry of Environment (permanent collection permit No. 20650-1).