Acinopterus acuminatus Van Duzee, 1892 (Fig. 1C)

Material. USA, 2 ♀, Illinois, Hardin Co., Camp Cadiz, 14 VI 1996 (Dietrich) ; 3 ♁, Texas, 14 mi. S Mineral Worth, 32°38'05" N, 98°04'15" W, prairie, 29 IV 2003 (Dmitriev) .

Description. Coloration green, without color pattern. Gonapophyses slightly darkened. Legs with dark setal areolae, apices of hind tibiae may also be darkened. Body length 3.7–3.9 mm; head width 1.3–1.4 mm.

Tribe Athysanini Van Duzee, 1892

Notes. Athysanini is the largest, world wide distributed tribe of Deltocephalinae . The tribe is presently defined based only on the absence of the distinctive features that define other deltocephaline tribes. Th e genera included in the tribe are so morphologically diverse that it is not possible to separate this assemblage in a single couplet in a key (see the key below). Th ere were few attempts to split Palaearctic genera of Athysanini in up to five subtribes or tribes, namely Athysanina, Platymetopiina, Cicadulina, Alligidiina, and Limotettigini, based on adult (Emeljanov 2009) and nymphal morphology (Dmitriev 2002d, 2006). Similar research should be done for Nearctic region and other parts of the world.