Gedanochila Brysz et Szwedo, 2022

Brysz, Alicja Magdalena, Bourgoin, Thierry & Szwedo, Jacek, 2022, Spotted beauty-Gedanochila museisucini gen. et sp. nov. - a new Achilidae from Eocene Baltic amber (Hemiptera: Fulgoromorpha) and its relation to Achilini, Zootaxa 5125 (3), pp. 295-312 : 297-298

Gedanochila Brysz et Szwedo , gen. nov.

Type species. Gedanochila museisucini Brysz et Szwedo sp. nov.; by present designation and monotypy.

Etymology. Generic name is derived from Latin name of the city of Gdańsk ‘Gedanum’ and achilid planthopper generic name Achila. Gender: feminine.

Diagnosis. Vertex distinctly wider than long; separated by a transverse carina from frons, trigons absent; in lateral view the angle between vertex and frons blunt; loral suture oblique; labium short, reaching metacoxae. Pronotal disc elevated, arcuate, with lateral margins carinate; post-ocular carina absent. Metatibia with lateral spine at ⅔ from base, with 10 apical teeth (some slightly shifted from base), basimetatarsomere longer than combined length of mid- and apical metarsomeres, with subapical setae, midmetatarsomere with subapical setae. Stem ScP+R+MP leaving basal cell with a short common stalk. Stem MP forked at level of claval apex (stem MP forked apicad of claval apex in Achilus Kirby, 1818 , Olmiana Guglielmino, Bückle et Emeljanov, 2010 and Ouwea Distant, 1907 ); stalk CuA 2 before fork on membrane short (in Achilus stalk CuA 2 long before fork on membrane), with two terminals (as in Olmiana and Achilus ).

Age and occurrence. Lutetian, Eocene, Baltic amber, Gulf of Gdańsk area, secondary deposit.

Note. The new genus is placed in Achilini based on set of characters recognized by Emeljanov (1992): medium size, not enlarged or broadened head, prolonged frons with sides (sub)parallel, comparatively large pronotum, wider than head with compound eyes, disc of vertex carinate, tegmina slopingly tectate, with basal portion of costal margin arcuately convex, with enlarged costal cell, short common stem ScP+R+MP, stigmal area with crossveins, both branches of CuA forked on membrane, hind wing with RP branched, MP 3-branched, CuA 4-branched, metatibia with single lateral tooth in distal ⅓, basi- and midmetatarsomeres with subapical setae. See also discussion below.