Mediporus Wang & Zhang

Wang, Yang, Viraktamath, Chandra A. & Zhang, Yalin, 2015, Mediporus, a new genus of the leafhopper subfamily Evacanthinae (Hemiptera: Cicadellidae), with a key to genera of the Evacanthini, Zootaxa 3964 (3), pp. 379-385 : 381

Mediporus Wang & Zhang , gen. n.

(Figs 1–19)

Type species: Mediporus splendens Wang & Zhang , sp. n., here designated.

Diagnosis. This genus differs from all other known genera of Evacanthini in having the male pygofer with elongate and slender ventral process, the crown strongly concave between three dorsally angulate longitudinal keels, and the gonopore in the middle of the aedeagus in dorsal view.

Description. Small leafhoppers (5.0– 5.8 mm long) with dorsal coloration yellow to orange, heavily marked with black. Head (Figs 1–3, 5–6) triangularly produced, in dorsal view longer than pronotum and distance between eyes; lateral margins keeled mesad of eyes, keel angulate above eye in lateral view; longitudinal lamellate carina extending from base to apex of crown; anterior margin with transverse carina weakly developed. Ocelli (Figs 3, 13) located at side of lateral carina, closer to corresponding eye than to apex of crown. Face (Fig. 6) including eyes distinctly longer than wide; frontoclypeus with distinct median longitudinal carina, oblique lateral striations distinct; anteclypeus convex, tapered in distal two thirds, apex with several setae; lorum small, narrow, well separated from lateral margin of gena, extended to midlength of anteclypeus. Antennal pit shallow, ledge absent. Pronotum (Figs 1–3, 5) much shorter and broader than head; surface with fine transverse striations, with two small pits in anterior area; lateral carina well developed, far below posterior angle of eye; posterior margin weakly emarginated, combined length of mesonotum and scutellum subequal to pronotum. Forewing (Fig. 4) semiopaque, venation visible but somewhat obscure basally, four apical cells present, vein R1 long and somewhat reflexed, inner and median anteapical cell open basally, outer anteapical cell not delimited (crossvein s absent), claval veins separate throughout length, appendix narrow. Front femur ( Fig. 17 ) with AM1 enlarged; no intercalary row; row AV with two enlarged basal setae and ca. 9 shorter setae more distad; row PV with one enlarged apical setae and ca. 9 shorter setae. Front tibia with two dorsoapical setae and row AD with 18 poorly differentiated setae, row AV with ca. 8 enlarged setae and ca. 8 short setae. Hind femur ( Fig. 16 ) macrosetal formula 2+1+1; tibia with ca. 21, 12, 13, and 22 setae in rows PD, AD, AV, and PV, respectively; tarsus elongate, tarsomere I with pair of dorsoapical setae, pecten of tarsomeres I and II with 4 tapered setae, respectively.

Male pygofer ( Figs 9, 10 ) with long, slender ventral process arising at base proceeding along lower margin of pygofer, but not extended beyond apex of lobe. Subgenital plate ( Fig. 14 ) not segmented at base, elongate, row of elongate fine setae along interior submargin and numerous long, fine setae distributed over surface laterad of macrosetae. Anal tube elongate and well sclerotized with pair of prominent basolateral lobe. Style ( Fig. 18 ) with footlike apex of apophysis having elongated lateral angle, apodeme apex acute. Connective ( Figs15, 18 ) Y-shaped, stem much longer than arms, with strong spinelike dorsal process anteriorly between bases of arms. Aedeagus ( Figs 11–13 ) boatlike, preatrium and dorsal apodeme not developed, posteriorly directed lateral lobes absent, shaft broad in ventral view, with dorsal surface concave and ventral surface convex, ejaculatory duct curved dorsally, gonopore central on dorsal surface. Female sternite VII ( Fig. 19 ) produced medially, pygofer with rows of elongated setae apically; ovipositor with toothed distal section of second valvulae very broad (Fig. 7).

Etymology. The genus name, a combination of Medi, meaning central, and porus, meaning pore, refers to the placement of the gonopore in the middle of the aedeagus.

Distrubution. Thailand.

Figures

FIGURES 9 – 19. Mediporus splendens sp. n.: 9. male genital capsule, lateral view; 10. Male pygofer side, lateral view; 11 aedeagus, lateral view; 12. aedeagus, dorsal view; 13. aedeagus, ventral view; 14. subgenital plate, ventral view; 15. connective, lateral view; 16. apex of hind femur, anterior view; 17. Front leg, anterior view; 18. connective and style, ventral view; 19. sternite VII, ventral view.