Hamulotettix, Dai, Wu & Zhang, Yalin, 2011

Dai, Wu & Zhang, Yalin, 2011, A new Oriental genus of Deltocephalinae (Hemiptera: Cicadellidae) from China and Thailand, Zootaxa 3055, pp. 62-68 : 63

Hamulotettix gen. nov.

Type species: Hamulotettix ungulatus sp. nov.

Body generally ochraceous with red markings on head and thorax, and red veins on basal half of forewing.

Large leafhoppers measuring more than 9.0 mm. Body including forewings at rest moderately elongate. Head including eyes in dorsal view slightly narrower than pronotum. Crown longer medially than next to eyes but shorter than width between eyes; anterior margin obtusely rounded in dorsal view; disc somewhat flat; glabrous. Ocelli on margin separated from corresponding eye by approximately twice their own diameter. Transition from vertex to frontoclypeus sharply angled and carinate. Face flat, shorter than wide; antennal ledges rather distinct; frontoclypeus long and narrow, clypellus slightly broader apically than at base, clypellar suture obscure. Genae with outer margin concave below eyes. Pronotum slightly longer than 1/2 width, anterior margin roundly produced, posterior margin slightly concaved, lateral margin carinate. Scutellum as long as pronotum. Forewing with four apical and three subapical cells; inner subapical cell open; central subapical cell more than 1.5X longer than outer subapical cell, veins M and CuA confluent for short distance near the base of the wing, vein 2A in the clavus sinuate and confluent with 1A distally, 1A strongly arched toward claval suture near base. Legs densely setose. Profemur with many long fine setae dorsally at apex, row AM with ten macrosetae, intercalary row with band of 20 setae, row AV with 10 setae short and stout. Protibia with numerous long fine setae in row AD and many macrosetae in row PD. Hind femur broadened distally and slightly bowed; apical setal formula 2+2+1. Hind tibia flattened and nearly straight, with PD setae very long, alternating in length and with 1 smaller setae between macrosetae; anterodorsal row with 12 macrosetae interspersed by two to four small stout setae; metabasitarsomere with five platella and two setae on apical transverse row, and one row of seven stout setae at middle and one row of seven stout setae at lateral margin.

Male genitalia: Pygophore with segment IX elongate in lateral aspect, with numerous macrosetae in caudal third. Segment X with unpaired falcate process arising anterioventrally. Subgenital plates broad basally and abruptly narrowed to digitate apex, with many fine setae along lateroapical margin, without macrosetae. Style with apical apophysis elongate, preapical lobe not prominent. Connective Y-shaped. Aedeagus articulated with connective; preatrium well developed; shaft stout, slightly curved dorsad, with wide apical flange; gonopore apical.

Female unknown.

Diagnosis. Large-sized deltocephaline leafhoppers with red markings and claval veins outlined with grayish pigmentation; Forewing with veins M and CuA confluent for a short distance near the base of the wing, vein 2A in the clavus sinuate and confluent with 1A; subgenital plate without macrosetae and male segment X with falcate process arising anteroventrally ( Fig. 17 ).

Etymology. The genus name is formed by combining the Greek words “hamulo” (hook) and “tettix” (cicada). The gender is masculine.

Figures

FIGURES 15 – 21. Hamulotettix ungulatus sp. nov. 15. Pygofer, lateral view; 16. Segment X, lateral view; 17. Aedeagus, ventral view; 18. Segment X, ventral view; 19. Aedeagus, lateral view; 20. Left genital valve and subgenital plate, ventral view; 21. Connective and style, dorsal view.