The male of Nancyana curva ( Homoptera : Cicadellidae ) from southeastern Brazil

The adult male of Nancyana curva is described and illustrated for the first time, based on four specimens from the states of Rio de Janeiro and Minas Gerais. Male diagnostic characters inelude the pres­ ence of a pair of inner projections on the dorsal lobe of the pygofer, and a dorsal pair of short subapical processes on the aedeagus. The female color pattem is similar to that of male, with dark brown bands on

The genus Nancyana Freytag is com prised of eleven known species (two of them previously described in Rhogosana Osboro, 1938) and is recorded from Venezuela, Argentina and Guyana.Only one species has been described from both sexes; in four of them only the male is known, and the descrip tions of the remaining five species are based on females (Freytag 1990).
Nancyana curva Freytag was described based on a single female from Guyana, and is related to N. aldeia (DeLong)• according to Freytag (1990).N. curva was diagnosed by the presence of a conspicuous semicircular dark spot on forewings, by larger body size and by shape of the seventh stemite (Freytag 1990).• In thi' paper the male of N. curva is describedand new morphological characters of the female are presented.The specimens used in this study were collected in the states of Minas Gerais (MG) and Rio de Janeiro (RJ), Brazil and are deposited in the Museu Regional de Entomologia, Universidade Federal de Vic;osa, MG (UFV), and in the Instituto Oswaldo Cruz, Rio de Janeiro, RJ (lOC).This is•the first record of Nancyana from Brazil.
Nancyana curva Freytag, 1990 Nancyana curva Freytag,Proc. Entomol. Soco VVash. 92: 530.Male.Length 155 mm .. General color reddish-brown.Crown width between eyes, at base, about three times its median length; U shaped dark brown spot reaching inner mar gins of eyes; coronal suture not reaching ante rior margin of crown .. Width of pronotum twice its length; pronotum with five dark brown stripes; the median stripe not reaching anterior margín of pronotum and crossing the anterior margin of scutellum; two narrow stripes adjacent to median stripe not attaining posterior margin of pronotum; other wider remanescent stripes extending from an area behind ocelli to lateral margin of scutellum before scutellar suture.Forewíngs similar to female: general color brown with pale yellow spots, median regíon with dark brown semi circular spot following costal margin with its largest width reaching claval suture; apical cells suffused wilh dark brown spots, oval shaped dark spot c10se to apex of clava!suture; veins brown, with small bristles.Hindwings dark.
Genitalia.Subgenítal pI ates approxi mately three times as long as their maximum width, with apex rounded, innerly excavated, with bristles on apical region and on outer lat eral margin originating mainly on inrier sur face.Pygofer robust, with apical margin bilobed, dorsal lobe with brush of bristles externally and internally with finger-like pro longation, apex indented on the ¡nner margino Styles with apical arm approximately seven times as long as its maximum width, with small sparse bristles; apex foot-shaped, direct ed dorsally, with short ventral spine.Aedeagus with long stem, concavely depressed on ven tral surface and with two pairs of subapical processes: lateroventral pair curved to stem base, with median regíon enlarged and nar rowed to apex, laterally curved, reaching approximately half of length of stem; short dorsal pair with narrowed apex curved toward stem base.Basal processes enlarged at base, abruptly narrowed from the apical third, sur passing half of the stem length.
Female.Length 17.0-18.5mm.Crown approximately three times as wide between eyes, at base, as median length, wíth uniform brown color pattem.Genae with many bristles outlining eye margíns.Pronotum with maxi mum width approximately twice median length, color pattern similar to that of male, three central dark brown bands and scutellar bands unclear.

DISCUSSION
In relation to the male genitalia, N. curva can be differentiated from the other species of Nancyana by the presence of a pair of inner projections on the dorsal lobe of the pygofer, and by a dorsalpair of short subapical process es on the aedeagus.
According to label data, the female specc imen from the state of Rio de J aneiro was col lected on "whip-horse" (Luehea divaricata Mart., Tiliaceae), a forest tree (Joly 1987).This is the only host known plant recorded for N. curva.
I thank Elidiomar R. Da-Silva (Universi dade do Rio de Janeiro), Jorge L. Nessimian, Alcimar L. Carvalho, Gabriel L.F. Mejdalani, and Márcio E. Felix (Universidade Federal do Rio de Janeiro) for critica!reading of this pa pero 1 am also very grateful to Paulo S.F.Fe rreira (UFV) and Sebastiao de Oliveira (lOC) for loading the studied specimens.This re search was partially funded by the CAPES IPICD/UFRJ.