Abstract
BackgroundA gall midge species (Diptera: Cecidomyiidae) inducing leaf bud galls on Magnolia kobus DC. var. borealis Sarg. (Magnoliaceae) was found in Hokkaido and northern Honshu, Japan.New informationBased on its morphology, the species is regarded as an undescribed species of the genus Pseudasphondylia Monzen (Cecidomyiinae, Cecidomyiidi, Asphondyliini). The species is herein described as Pseudasphondylia saohimea Matsuda, Elsayed and Tokuda sp. n. The new species is easily distinguishable from its congeners by the number of adult palpal segments and the shape of the male terminalia and larval spatula.
Highlights
The genus Pseudasphondylia (Diptera: Cecidomyiidae: Asphondyliini) includes 11 species associated with various plant families (Gagné and Jaschhof 2021)
Amongst the nine eastern Palaearctic species, the following six species have been recorded from Japan: P. elaeocarpi Tokuda and Yukawa on Elaeocarpus zollingeri K.Koch (= E. sylvestris var. ellipticus Hara) (Elaeocarpaceae), P. kiritanii Tokuda & Yukawa on Cornus controversa Hemsl. ex Prain (Cornaceae), P. matatabi (Yuasa & Kumazawa) on Actinidia polygama (Siebold et Zucc.) Planch. ex Maxim. (Actinidiaceae), P. neolitseae Yukawa on Neolitsea sericea (Blume) Koidz. (Lauraceae), P. rokuharensis Monzen on Viburnum dilatatum Thunb. (Caprifoliaceae) and P. tominagai Elsayed & Tokuda on Eleutherococcus spinosus (L.f.) S.Y.Hu (Araliaceae) (Monzen 1955, Tokuda 2012, Tokuda and Yukawa 2002, Tokuda et al 2007, Yukawa 1974, Yukawa and Masuda 1996, Elsayed et al 2019, Yukawa 1983)
We found an undescribed species of asphondyliine gall midge that induces leaf bud galls on Magnolia kobus DC. var. borealis Sarg. (Magnoliaceae) in Tomakomai, Hokkaido and Aomori Prefecture, Honshu, Japan
Summary
A gall midge species (Diptera: Cecidomyiidae) inducing leaf bud galls on Magnolia kobus DC. var. borealis Sarg. (Magnoliaceae) was found in Hokkaido and northern Honshu, Japan. A gall midge species (Diptera: Cecidomyiidae) inducing leaf bud galls on Magnolia kobus DC. (Magnoliaceae) was found in Hokkaido and northern Honshu, Japan. The species is regarded as an undescribed species of the genus Pseudasphondylia Monzen (Cecidomyiinae, Cecidomyiidi, Asphondyliini). The species is described as Pseudasphondylia saohimea Matsuda, Elsayed and Tokuda sp. N. The new species is distinguishable from its congeners by the number of adult palpal segments and the shape of the male terminalia and larval spatula
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