Iassus psudoulmi, Kwon & Oh & Jung, 2017

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 psudoulmi sp. nov. Kwon et Jung

( Figs. 15–21 )

Description. Head green. Vertex, pronotum and sculletum variegated with reddish brown spots. Pronotum dark brown with margins pale green. Scutellum pale brown with pale green spots posteriorly. Forewings translucent and pale green, with irregular dark spots and punctations; clavus with dark spot at apex of clavus. Legs green colored, without pattern or spot ( Fig. 15 ).

Male genitalia. Pygofer lobe process with ventral tooth near base, unbranched, apex curved; anal tube appendage short and blade-shaped ( Fig. 16 ). Subgenital plate usually short, finger shaped with bent down apex, and without setae and bristles ( Fig. 17 ). Aedeagus robust, apex with straight broadened lateral lobes, thickest at apex ( Figs. 18–19 ).

Measurements. Body length males 6.96–7.15 mm, females 6.47–7.15 mm.

Specimens examined. Holotype: [ CNU] ♂, Jichon-ri, Yanggang-myeon, Yeongdong-gun, Chungcheongbukdo, Korea, 18. VI. 2015, coll. S.M. Oh, Paratype: [ CNU] 1♀, Chungnam National Univ., Yuseong-gu, Daejeon, Korea, 13. IV. 2014, coll. W.D. Lee ; [ CNU] 1♀, Sinbong-dong , Yuseong-gu, Daejeon, Korea, 23. V. 2015, coll. K.H. Kim ; [ CNU] 2♀♀, Jichon-ri, Yanggang-myeon, Yeongdong-gun, Chungcheongbuk-do, Korea, 17. VI. 2015, coll. S.A Kwon, light trap; [ CNU] 2♂♂, 2♀♀, Jichon-ri , Yanggang-myeon, Yeongdong-gun, Chungcheongbuk-do, Korea, 18. VI. 2015, coll. S.M. Oh ; [ CNU] 1♀, Chungbuk National Univ. , Seowon-gu, Cheongju-si, Chungcheongbuk-do, Korea, 21. VII. 2015, coll. E.J. Kim.

Host plants. Unknown

Distributions. Korea (Central)*.

Remarks. This new species is similar to Iassus ulmi ( Kusnezov, 1929) , but differs as follows: 1) pygofer lobe process extended at posterior margin; 2) pygofer appendage small and unreachable at posterior margin.

Etymology. The specific name is derived from the similar species Iassus ulmi ( Kusnezov, 1929) .

Figures

FIGURES 15 – 21. Iassus psudoulmi sp. nov. Kwon et Jung: 15. Male’s habitus. 16. Pygofer lobe, processes and pygofer appendage. 17. Subgenital plate. 18. Aedeagus in lateral view. 19. Aedeagus in ventral view. 20. Style. 21. Connective. Scales: (15) 1 mm; (16 – 21) 0.1 mm.