Family: Cicadellidae
Subfamily: Deltocephalinae
Length: 4.0-5.0 mm
These two West Virginia photographs (showing some variation within the species) were taken in August and October, but Norvellina seminuda appears to be active in the state from about May to November.
A similar species, Norvellina novica, tends to be longer, at 4.5-5.5 mm.
Insects of West Virginia