Loeia 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 : 365

Loeia Duan gen. n.

Type species: Loeia tamtipi Duan sp. n.

Coloration and morphology. Whitish yellow with orange and fuscous marks. Crown slightly wider than pronotum. Crown short, only slightly longer medially than length of inner eye margin with basal width about twice length of inner eye margin, depressed, anterior margin in dorsal view slightly angularly produced; texture glabrous posteriorly; transition from crown to face rounded; ocellus next to eye on anterior margin. Face wider than long, relatively flat; fronotclypeus relatively narrow, slightly tapered ventrally; anteclypeus slightly widening towards apex, lateral margins slightly convex, not extending to ventral margin of genae; lorum relatively broad, well separated from genal margin. Forewing with numerous incomplete cross veins, with four apical and three subapical cells, inner subapical cell closed basally, outer subapical cell extended to costal margin near midlength and petiolate apically; appendix narrow. Front femur row AV with ~8 short, stout setae in basal half and long AV1 near apex; AM1 enlarged, near midheight, well separated from apex; intercalary row with ~10 fine pale setae; tibial rows AD and PD with 1 and 15–18 macrosetae, respectively. Hind femur setal formula 2+2+1, tibial rows PD, AD and AV with approximately 12, 9 and 20 macrosetae, respectively; PD and AD with 1–4 shorter setae between successive macrosetae; PD macrosetae ~50% longer than AD macrosetae; tarsomere I with two well developed plantar rows of stout setae, pecten with three platellae.

Male genitalia. Pygofer with posterior lobe very long and tapered; with numerous long thin macrosetae; with stout acute ventral process arising near base of lobe, curved inwards. Subgenital plate broad basally with very long digitate apical region; with few lateral thin macrosetae in single row near base. Style basal arms widely separated, articulating arm long, lateral arm short; preapical lobe well developed, broadly triangular; apophysis relatively short and stout, curved laterally and tapered to acute apex with subapical mesal heel. Connective shorter than aedeagus, linear with arms joined anteriorly. Aedeagus with shaft moderately long, curved dorsally and slightly compressed dorso-ventrally; with pair of apical processes arising dorsolaterally; gonopore apical; basal apodeme moderately long. Anal tube short and weakly sclerotized.

Remarks. In the key to genera of Oriental and Palaearctic Deltocephalini by Duan et al. (2016b) Loeia keys out to Miradeltaphus Dash & Viraktamath but may be separated from this and other Deltocephalini genera by the following combination of features: crown short; anteclypeus widening towards apex; lorum relatively large; forewing with numerous incomplete cross veins thickened with white marking; male pygofer with posterior lobes very long and tapered, with ventral processes; subgenital plate with long digitate apical region; aedeagus with pair of apical processes arising dorsolaterally, gonopore apical.

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