Nicolaus abuensis sp. nov. (Figs 1–2, 11–18, 57–60) Creamy white. Crown of head with submarginal brown stripe anteriorly. Face with arcuate lateral transverse stripes connected to median vertical stripe, brown; tiny spot on gena adjacent lorum, black. Head shorter than median length of pronotum. Pronotum shorter than combined median length of scutum and scutellum. Male genitalia. Pygofer lobe caudally rounded, with three denticles along mesal margin. Subgenital plate notched near caudal tip on lateral margin and with sclerotized pad dorsally. Apophysis of style curved laterally, its mesal margin strongly crenulate, pigmented. Aedeagus with shaft membranous, preatrial processes bladelike, slightly bent dorsally at midlength and distally curved laterally. Female genitalia. Hind margin of seventh sternite almost straight, with median narrowly V-shaped incision. First pair of valvulae abruptly narrowed before apex. Teeth on the second pair of valvulae in distal half close together, distance between them less than length of each tooth. Measurements. Male 3.3–3.4 mm long, 0.9–1.0 mm wide across eyes. Female 4.5 mm long, 1.1 mm wide across eyes. Material examined. INDIA: HOLOTYPE ♂, Rajasthan: Mt Abu, 28.ix.1984, Ghorpade Coll. (BMNH). PARATYPES: INDIA: 6 ♂, 6 ♀, data as for type (BMNH, NPC, UASB). Remarks. N. abuensis resembles N. minor Stiller from South Africa in the general structure of the aedeagus but differs in having denticles on the mesal lobe of the pygofer process (absent in N. minor), and the ventral process of aedeagal shaft more strongly curved apically.

Published as part of Viraktamath, C. A. & Webb, M. D., 2014, Four new species of the grass feeding leafhopper genus Nicolaus Lindberg (Hemiptera: Cicadellidae: Deltocephalinae) from the Indian subcontinent, pp. 528-538 in Zootaxa 3784 (5) on page 530, DOI: 10.11646/zootaxa.3784.5.2, http://zenodo.org/record/228652