Malmaemichungia Kwon, 1983

Wei, Cong, Zhang, Yalin & Dietrich, Christopher H., 2010, A new brachypterous leafhopper of the tribe Malmaemichungiini (Hemiptera: Cicadellidae: Bathysmatophorinae), representing the first record of the tribe from China, Zootaxa 2689, pp. 48-56 : 49-52

Genus Malmaemichungia Kwon, 1983

Malmaemichungia Kwon, 1983: 21

Type species: Malmaemichungia brachycephala Kwon by original designation

Redescription. Body generally dark ochre with dark to yellowish brown markings ( Figs 1–5 ).

Head ( Figs 1, 4, 5 ) small, slightly narrower than or nearly as wide as pronotum. Crown short, approximately 3x broader than median length, deeply concave; anterior margin strikingly carinate; posterior margin elevated, subparallel to anterior margin. Eyes strongly bulging dorsad; ocelli absent. Face ( Figs 2, 6 ) distinctly longer than wide, shagreened; frontoclypeus in profile nearly flat longitudinally, upper margin slightly concave medially in anteroventral view; transclypeal suture indistinct; anteclypeus elongate, with apex extending well beyond lorum; lateral margin very slightly convex; apical area narrowed apically, with margin roundly convex; lorum narrow; gena nearly flat; rostrum broad, extending to apex of trochanter of middle leg. Antenna very short, arising adjacent to lower corner of eye; antennal ledge distinct.

Pronotum ( Figs 1, 4, 5 ) subhexagonal in males ( Fig. 1 ), subrectangular in females ( Fig. 5 ), approximately 2x broader than median length, shagreened; anterior and lateral margins slightly convex; lateroposterior and posterior margins slightly concave with lateroposterior angles shortly produced in males ( Fig. 1 ), nearly in straight line with posterior margin in females ( Fig. 5 ); carina present, slightly curved ventrally. Scutellum ( Figs 1, 4, 5 ) very small, slightly elevated apically, with lateral margin nearly in line with lateroposterior margin of pronotum. Forewing ( Figs 3 – 5 ) brachypterous, distinctly thickened with claval suture and several longitudinal veins disctinct; outer and inner margins elevated, apical margin truncate. Hind wing reduced. Legs densely setose; setal groups of front femur poorly differentiated, with AM1 not enlarged. Hind femur ( Figs 3, 7 ) slightly broadened distally, with several scattered distal setae elevated on strong bases and uniseriate row of shorter setae subapically, somewhat irregular. Hind tibia ( Figs 3, 7 ) moderately flattened; PD setae about 15, very long; AD setae about 15, slightly shorter than PD setae. First hind tarsomere with pair of enlarged dorsal setae distally; plantar surface with six apical platellae arranged in transverse row.

Male pygofer side ( Figs 8–9 ) with basal half broadened and apical half prominently narrowed, caudal margin somewhat rectangularly produced; densely clothed with short macrosetae; inner lateral process ( Figs 11–12 ) well developed, arising basolaterally on mesal surface of lobe, bifurcate. Segment X ( Figs 8–9 ) small. Valve ( Figs 9–10 ) broad and short. Subgenital plate ( Figs 9, 10, 13 ) ligulate, extending to or slightly beyond apex of pygofer, ventral side with scattered short macrosetae; large lobe-like processes on lateral margin basally, articulated with style in dorsal view; lateral margin folded inward. Style ( Figs 15–18 ) with apodeme long, straight and expanded apically; median lobe very short; lateral lobe well developed; apophysis elongate, extended ventrolaterad then abruptly bent posterodorsad; distal section with several fine dorsal setae basad of preapical toothlike ventral heel; apex thin and curved medially near tip. Connective ( Figs 14, 15, 17 ) broad and short, with well-developed median anterior lobe, lateral arms very short. Aedeagus ( Figs 15, 17, 19, 20 ) with atrium large, longer and broader than shaft; dorsal apodeme absent; shaft simple, tubular, curved dorsad in lateral view, with angulate projection dorsally at base; gonopore subapical.

Female with 7th sternite slightly longer than 6th sternite, caudal margin with shallow subtriangular cleft medially. Female pygofer ( Figs 21–22 ) with posteroventral angle broadly produced posteriorly. Ovipositor extended beyond apex of pygofer. First valvula ( Figs 21, 23, 24 ) with sculpture irregularly strigate dorsally with small ventral preapical imbricate area. Second valvula ( Figs 21, 25, 26 ) with dorsal hyaline area absent; dorsal margin with several irregular blunt teeth subapically. Third valvula ( Figs 21, 27 ) with expanded apical region extending over distal half.

Distribution. Korea (Mt. Ch’ongoksan, Mt. Sobaeksan, Mt. Daedunsan, Mt. Jirisan); China (Mts Qinling, Shaanxi Prov. and Gansu Prov,).

Biology. Huh & Kwon (1994) recorded the host plant of Malmaemichungia brachycephala as Stephanandra incisa (Rosaceae) and the adult occurrence of this univoltine species is from May to July. Host plants of other species of this genus are unknown.

Remarks. This genus can be easily distinguished from the other two known genera of Malmaemichungiini, Bannalgaechungia Kwon and Koreotettix Huh & Kwon , by the bifurcated inner process of the male pygofer.

Figures

FIGURES 1 – 7. Malmaemichungia qinlingensis sp. nov. 1. habitus (male), dorsal view; 2. face (male); 3. habitus (male), lateral view; 4. habitus (male), laterodorsal view; 5. habitus (female), dorsal view; 6. face (male); 7. habitus (female), lateral view.

FIGURES 8 – 20. Male genitalia of Malmaemichungia qinlingensis sp. nov. 8. male pygofer (dissected with valve and subgenital plates removed), lateral view; 9. male pygofer, lateral view; 10. valve and subgenital plates, ventral view; 11. partial male pygofer with inner process, dorsal view; 12. inner process of male pygofer, dorsal view; 13. partial valve and subgenital plates, ventral view; 14. connective; 15. style, connective and aedeagus, lateral view; 16. Style, lateral view; 17. style, connective and aedeagus, dorsal view; 18. apex of style, dorsal view; 19. aedeagus, lateral view; 20. aedeagus, posteroventral view.

FIGURES 21 – 27. Female genitalia of Malmaemichungia qinlingensis sp. nov. 21. female pygofer, lateral view; 22. female pygofer (in copulation when collected and killed), lateral view; 23. first valvula; 24. apex of first valvula; E. second valvula; 25. apex of second valvula; 26. third valvula.