Alnetoidia (Alnatoidia) satsumana, (Matsumura, 1932)

Oh, Sumin, Kim, Eunji & Jung, Sunghoon, 2021, One new and one newly recorded species of the genus Alneotidia Dlabola (Hemiptera: Auchenorrhyncha: Cicadellidae: Typhlocybinae) from the Korean Peninsula with key to Korean species, Zootaxa 5032 (4), pp. 577-582 : 581

A. (Alnatoidia) satsumana ( Matsumura, 1932)

( Figs. 2A–I )

Zygina satsumana Matsumura, 1932: 116

Erythroneura satsumana Ishihara, 1953: 33

Description. Body coloration yellow ( Fig. 2A ). Crown light yellow with a pair of faint spots medially. Pronotum light yellow with irregular translucence pattern. Mesonotum and scutellum dark yellow. Frontoclypeus comparatively short, anteclypeus dark yellow. Thorax dark yellow and abdomen yellow ( Fig. 2B ). Coxa, femur and tarsus yellowish white, tibia yellow with white basally. Fore leg tibia with several short setae densely at internal margin and middle leg tibia without setae. Hind leg tibia with several long setae widely at external margin and short setae densely at internal margin. Forewings yellow without spot or pattern.

Male abdominal apodemes long and narrow, extended to half of sternite V ( Fig. 2C ).

Male genitalia. Pygofer lobe flat with ventral process and dorsal appendage. Ventral process of pygofer lobe stretched straight with three microsetae at middle under margin. Dorsal appendage of pygofer lobe beak-like shape ( Fig. 2F ). Subgenital plate with three macrosetae at middle part of outer surface and several microsetae at around edge ( Fig. 2I ). Style long with preapical lobe and apex foot-like ( Fig. 2G ). Connective with short and blunt ended arms, middle appendage thin and short ( Fig. 2H ). Aedeagus with long stem and a pair of subapical processes at apex; apex obviously bended. Aedeagal process long and reaching at apex in caudal view ( Fig. 2D ). Aedeagus curved arrow-like with short hook at below apex in lateral view ( Fig. 2E ).

Measurements. Males 3.12–3.28 mm.

Specimens examined. [CNU] 2♂♂, Mt. Duta recreation forest, 132, Achagol-gil, Jinbu-myeon, Pyeongchanggun, Gangwon-do, Korea, 30. v. 2015, coll. S. Oh, on Morus alba

Host plants. Unknown.

Distributions. Japan, Korea *, Russia

Remarks. This species was described without male genitalia illustrations in 1932 by Matsumura, after which figures of the male genitalia were provided by Vilbaste (1968) and Anufriev (1969). However, genital illustrations provided by these two authors differ from each other (see pp. 99–100 in Vilbaste, 1968; pp. 177–178 in Anufriev, 1969), which caused difficulties in identifying this species. We identified the examined specimens following Vilbaste (1968) who provided more detailed genital illustrations, rather than Anufriev (1969). Even though Anufriev (1969) presented only illustrations of the aedeagus, his interpretation of Matsumura’s species seems to be closer to the new taxon presented in this paper, A. flava .

Figures

FIGURE 2. A. (Alnetoidia) satsumana: A. Habitus. B. Ventral view. C. Male abdominal apodemes. D. Aedeagus caudal view. E.Aedeagus lateral view. F. Pygofer lobe lateral view. G. Style. H. Connective. I. Subgenital plate. Scales: 1 mm (Figs. 2 A~B), 0.1 mm (Figs. 2 C~I)