Abstract
A new species of flat mite, Cenopalpus umbellatus sp. nov. (Acari: Trombidiformes: Tenuipalpidae) is described and illustrated based on females, males, deutonymphs, protonymphs and larvae. The morphological ontogeny in idiosomal and leg chaetotaxy is briefly described for all stages. Mite specimens were collected from the leaves of Rhaphiolepis indica var. umbellata Makino (Rosaceae), an evergreen shrub native to Japan. An identification key to the world species of Cenopalpus is also provided.
Highlights
Mites of the family Tenuipalpidae Berlese, 1913 (Acari: Trombidiformes) are harmful pests to a wide range of plants (Jeppson, Keifer & Baker, 1975; Mesa et al, 2009)
In Japan, comparing to spider mites (Tetranychidae), few studies have been done on the taxonomy of tenuipalpid mites
Since immature stages of mites can provide valuable information for better mite systematics, we have described all stages of the new species, with remarks on their ontogenetic changes
Summary
Mites of the family Tenuipalpidae Berlese, 1913 (Acari: Trombidiformes) are harmful pests to a wide range of plants (Jeppson, Keifer & Baker, 1975; Mesa et al, 2009). The genus Cenopalpus Pritchard & Baker, 1958, currently contains 70 species (including the present new species), mostly described from Palearctic and Afrotropical ecozones (Table 1). Mesa et al (2009) listed the genus Cenopalpus with 60 species, assigning the two species, salignae (Meyer, 1979) and thelycraniae (Livschitz & Mitrofanov, 1967), under Brevipalpus. Saccaggi et al (2017) cited B. salignae in the genus Cenopalpus, the Russian species (B. thelycraniae) was already transferred to Cenopalpus by Mitrofanov & Strunkova (1979). Ehara & Gotoh (2009) listed 14 species of flat mites from Japan, belonging to the genera Aegyptobia Sayed, Brevipalpus Donnadieu, Cenopalpus, Dolichotetranychus Sayed, Pentamerismus McGregor and Tenuipalpus Donnadieu, with only one species of Cenopalpus (C. lineola; Table 2).
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