Mjolnirus mediolobus Wang, Xu & Qin, 2021

Wang, Yi-Mei, Xu, Ye, Dmitriev, Dmitry A., Dietrich, Christopher H. & Qin, Dao-Zheng, 2021, Two new empoascine leafhopper genera, Thaioasca and Mjolnirus, from Thailand (Hemiptera: Cicadellidae: Typhlocybinae), with a checklist of Empoascini in Thailand, Zootaxa 4915 (2), pp. 246-254 : 251-252

Mjolnirus mediolobus Wang, Xu & Qin , sp. nov.

( Figs 18–37 )

Description. Body length: male 3.5–3.8 mm.

Ground color faint pale yellowish ( Figs 18–21 ). Eyes silvery gray to black ( Figs 18–21 ). Crown with irregular red spots along coronal suture. Face almost whitish due to long-term storage in ethanol. Mesonotum much darker than head and pronotum ( Figs 18, 20 ). Fore- and hind wing subhyaline, veins distinct ( Figs 22, 23 ). Legs apricot cream-colored ( Figs 19, 21 ).

Male 2S abdominal apodemes reaching posterior margin of segment IV, parallel sided ( Fig. 24 ). Male pygofer broad and rounded apically, bearing 8–9 rigid setae along postero-dorsal margin of lobe, dorsal bridge long and well delimited ( Figs 25–29 ); ventral pygofer process unique, extending dorsomesad from ventral margin of pygofer, with apparently eversible nipple-like structure apically. Subgenital plate longer than pygofer lobe in lateral view, apex rounded and bent dorsad along ventral margin of pygofer lobe; basal setae (6–7) uniseriate, almost same size as macrosetae; marginal setae (20–22) divided into two groups occupying more than half length of dorsolateral margin, one group smooth apically arranged in one row, another group slender, tapered with a blunt tip apically; macrosetae (7–8) not reaching apex of plate; feeble microsetae (12–14) very sparse and inconspicuous ( Figs 25 , 27, 30 ). Aedeagus with preatrium elongated, occupying nearly half length of aedeagus in profile; shaft with asymmetrical basal processes, one ridged straight process protruding out of side of shaft and another process at ventral margin basally, slightly curved dorsad (some variation in shape and length of processes observed) ( Figs 25, 26 , 33–35 ). Style dentifer with five to seven teeth preceded by four to five setae and few sensory pits ( Figs 25 , 27, 31, 32 ). Connective lamellate, longer than wide ( Fig. 36 ). Anal tube process well developed, with broad and rounded apex ( Figs 25 , 27, 37 ).

Holotype. Ƌ ( QSBG), Thailand Chiang Mai Doi Chiang Dao WS Nature trail 19°24.278' N 98°55.311'E, 491 m, Malaise trap, March 10–17, 2008, Songkran & Apichart, leg., T3155 ; Paratypes. 10ƋƋ ( INHS), 10ƋƋ ( QSBG), 15ƋƋ ( NWAFU), same data as holotype, leg. T3155 .

Distribution. Thailand.

Etymology. The name, which is a noun in apposition, is a combination of Latin words: “ medius ”, middle and “ lobus ”, lobe, referring to the median lobe at the anterior margin of the connective.

Figures

FIGURES 18–26. Mjolnirus mediolobus Wang, Xu & Qin, sp. nov. 18. male adult (abdomen removed), dorsal view; 19. male adult (abdomen removed), left lateral view; 20. head and thorax, dorsal view; 21. face; 22. forewing; 23. hindwing; 24. abdominal apodemes; 25. male genitalia, left lateral view; 26. male genitalia, dorsal view. Scale bars = 0.5 mm (Figs 18–26).

FIGURES 27–37. Mjolnirus mediolobus Wang, Xu & Qin, sp. nov. 27. male genitalia, left lateral view; 28. pygofer lobe with ventral process, left lateral view; 29. pygofer, dorsal view; 30. subgenital plate; 31, 32. style; 33, 34. aedeagus, left lateral view; 35. aedeagus, ventral view; 36. connective; 37. anal tube appendage, left lateral view.