Phetchabunia Duan, 2017

Duan, Yani, Dietrich, Christopher H., Webb, Michael D. & Zhang, Yalin, 2017, New taxa and new records of Deltocephalini leafhoppers from Thailand (Hemiptera: Cicadellidae: Deltocephalinae), Zootaxa 4350 (2), pp. 363-373 : 367

Phetchabunia Duan gen. n.

Type species: Phetchabunia janteabi Duan sp. n.

Coloration and morphology. Brown with orange and fuscous marks. Crown narrower than pronotum. Crown very long, approximately 2½ times length of inner eye margin with basal width similar in length to inner eye margin, depressed, spatulate, anterior margin in dorsal view tapered to narrowly rounded apex slightly angulate subapically, texture uniformly shagreen, transition from crown to face narrowly angulate; ocellus next to eye on anterior margin. Face length nearly twice width, relatively flat; frontoclypeus relatively narrow, slightly tapered ventrally; anteclypeus parallel-sided, extended to ventral margin of genae; gena broad, insinuated near eye; lorum narrower, well separated from genal margin. Forewing with numerous extra cross veins and four apical and three subapical cells, inner subapical cell closed basally; appendix narrow. Front femur row AV with ~17 short, stout setae in basal half, AV1 weakly differentiated, AM1 near ventral margin well separated from apex; intercalary row with ~5 fine setae; tibia rows PD and AD each with 4 macrosetae. Hind femur macrosetal formula 2+2+1; tibia rows PD, AD and AV with approximately 8, 11 and 14 macrosetae; PD and AD with 1–5 smaller setae between successive macrosetae; PD macrosetae distinctly longer than those of AD; tarsomere I with two distinct plantar rows of stout setae, pecten with three platellae.

Male genitalia. Pygofer lobe tapered; without processes; with numerous macrosetae. Subgenital plates fused to each other through most of length, lateral margin concave; without lateral macrosetae. Style narrow through most of length, basal arms widely separated, articulating arm long, lateral arm very short; preapical lobe weak; apophysis thick finger-like. Connective equal in length to aedeagus, linear with arms joined distally. Aedeagus with shaft moderately long, very slightly curved dorsally; with pair of lateroapical processes; gonopore apical; basal apodeme vestigial; anal tube moderately long and well sclerotized dorsally.

Remarks. This genus forms a group with Old World Deltocephalini genera Miradeltaphus Dash & Viraktamath and Peitouellus Vilbaste all having the subgenital plates fused basally. It is similar to Yuanamia Zhang & Duan in the apical position of the aedeagal processes but differs from that genus and others in its very long, spatulate crown and in lacking macrosetae on the subgenital plate.

Etymology. This genus is named for the type locality of the type species, gender feminine.