Iassus lateralis ( Matsumura, 1905 )

Kwon, Sua, Oh, Sumin & Jung, Sunghoon, 2017, A new species and two new records of the leafhopper genus Iassus Fabricius (Hemiptera: Auchenorrhyncha: Cicadellidae) from Korea, with a key to the Korean Iassus species, Zootaxa 4341 (1) : -

Iassus lateralis ( Matsumura, 1905)

( Figs. 1–7 )

Macropsis lateralis Matsumura, 1905: 51 Batracomorphus orientalis Kusnezov, 1929: 253 Batracomorphus laniarius Jacobi, 1943: 31 Pachyopsis lateralis Ishihara, 1953: 20

Iassus lateralis Ishihara, 1954: 14

Bythoscopus lateralis Esaki & Ito, 1954: 254 Iassus laniarius Nast, 1972: 228

Description. Head green. Vertex and pronotum variegated with reddish brown spots. Scutellum orange brown, bordered with yellow suture arcuate. Forewings translucent and pale green; veins green; clavus without dark spot. Legs green, without pattern or spot ( Fig. 1 ).

Male genitalia. Pygofer lobe process without ventral tooth, unbranched and curved apically; anal tube appendage small, slim and sharp ( Fig. 2 ). Subgenital plate with pointed apex ( Fig. 3 ). Aedeagus long and slim, apex aligned and narrowly bifurcate ( Fig. 5 ). Aedeagus apex with small lateral lobes ( Fig. 4 ).

Measurements. Body length males 8.43–9.26 mm, females 7.93–9.19 mm.

Specimens examined. [ CNU] 1♂, Jichon-ri, Yanggang-myeon, Yeongdong-gun , Chungcheongbuk-do , Korea, 17. VI. 2015, coll. S.A Kwon, light trap; [ CNU] 4♂♂, Jichon-ri, Yanggang-myeon, Yeongdong-gun , Chungcheongbuk-do , Korea, 18. VI. 2015, coll. S.M. Oh; [ CNU] 1♂, 2♀♀, Jichon-ri, Yanggang-myeon, Yeongdong-gun , Chungcheongbuk-do , Korea, 22. VI. 2016, coll. S.A Kwon, light trap; [Hokkaido University] 3 specimens , Japan, coll. Matsumura (unreadable labels for collecting localities).

Host plants. In broad-leaved and mixed forests on Ulmus ( Anufriev et al. 1988) .

Distributions. China, Japan, Russia, Mongolia, Korea *.

Figures

FIGURES 1 – 7. Iassus lateralis (Matsumura, 1905): 1. Male habitus. 2. Pygofer lobe, processes and pygofer appendage. 3. Subgenital plate. 4. Aedeagus in lateral view. 5. Aedeagus in ventral view. 6. Style. 7. Connective. Scales: (1) 1 mm; (2 – 7) 0.1 mm.