Platygonia Melichar 1925
Creators: name: Quintas, Victor
name: Pecly, Nathalia H.
name: Carvalho, Stéphanie R.
name: Mejdalani, Gabriel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Platygonia

description: Key to species of Platygonia (modified from Young 1977)
1. Each forewing with four large yellow spots (two on clavus and two on corium) (Figs 7–8) ............. ................................................................................................... P. undecimmaculata (Fowler, 1899)
– Forewing without above color pattern .............................................................................................. 2
2. Each forewing with two broad white to pale yellow complete transverse stripes, one at basal third and another just behind claval apex ................................................................. P. zea (Distant, 1908)
– Forewing without above color pattern .............................................................................................. 3
3. Aedeagus, in lateral view, with a ventral process ............................................................................. 5
– Aedeagus, in lateral view, without a ventral process ........................................................................ 4
4. Aedeagus, in lateral view, gradually tapered apically .................................. P. infulata Young, 1977
– Aedeagus, in lateral view, obliquely truncate apically ............................. P. ignifera (Walker, 1851)
5. Crown-face transition without carina. Ventral process of aedeagus located apically (Southeastern Brazil) .......................................................................................................... P. angrana Young, 1977
– Crown-face transition with carina. Ventral process of aedeagus located on median third or more basally (Central America, Colombia, and Northern Brazil) ............................................................. 6
6. Pronotum with a large yellow spot; forewing with a large yellow spot extending from costal margin to median portion of clavus and a large orange spot at apical portion of corium, including anteapical cells .................................................................................................... P. praestantior (Fowler, 1899)
– Without the above combination of color features ............................................................................. 7
7. Disk of crown convex before ocelli ............................................................... P. detecta Young, 1977
– Disk of crown concave or depressed before ocelli ........................................................................... 8
8. Crown dark brown to black only at lateral margins .............................. P. spatulata (Signoret, 1854)
– Crown almost entirely dark brown to black (Figs 1–2) ............................................ P. nigra sp. nov.
description: Published as part of Quintas, Victor, Pecly, Nathalia H., Carvalho, Stéphanie R. & Mejdalani, Gabriel, 2022, Platygonia Melichar, 1925 (Insecta: Hemiptera: Cicadellidae: Cicadellini): a new species from the Brazilian Amazon Rainforest, key to species of the genus, and notes on P. undecimmaculata (Fowler, 1899), pp. 177-186 in European Journal of Taxonomy 806 (1) on page 183, DOI: 10.5852/ejt.2022.806.1715, http://zenodo.org/record/6402870