Deltocephalinae (the concept of this subfamily was recently expanded to include Eupelicinae, Koebeliinae, Paraboloponinae, Penthimiinae, and Selenocephalinae; see Dietrich, C. H., and R. A. Rakitov. 2002. J. New York Entomol. Soc. 110: 1-48, and Dietrich, C. H., and D. A. Dmitriev. 2003. Ann. Entomol. Soc. Amer. 96: 766-775)
Known diversity: 750 genera, 6500 species.
Ecology: Various; abundant in grasslands and savannas.
Diagnosis: Small to medium-sized leafhoppers; head with ocelli on margin of crown near eyes, lateral frontal sutures extended to ocelli, antennal ledges reduced or absent; forewing usually with one or more crossveins in clavus; hind femur macrosetal formula usually 2+2+1 with penultimate pair close-set; male valve and plates usually triangular.
Similar to: Acostemminae, Aphrodinae, Arrugadinae, Drakensbergeninae, Eupelicinae, Koebeliinae, Neobalinae, Selenocephalinae, Stegelytrinae, Xestocephalinae.
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