Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702 Domínguez, Edwin Godoy, Carolina Zootaxa 2010 2010-12-03 2702 1 106 8RMF6 Dominguez & Godoy Dominguez & Godoy 2010 [151,672,786,812] Insecta Cicadellidae Osbornellus Animalia Hemiptera 96 97 Arthropoda species nielsoni sp. nov.  ( Figs. 60a–60e)  Descripction.Length: 3.7–4.6 mm. Similar to other members of the species  O. affinisgroup ( Fig. 1d).  Male genitalia.Pygofer longer than wide, greatly projecting posteriorly, apex very wide and rounded; macrosetae very long, distributed over the distal third of the pygofer ( Fig.60a). Valve with rounded borders, slightly curved anteriorly in the center. Plates elongate, apex pointed, with a few short setae ( Fig. 60b). Style with apophysis short, curved, rugose on the internal side, and with apex truncate ( Fig. 60c). Aedeagus in ventral view with base wide and straight, slightly curved on lateral margins. Shaft hidden by the processes, but shorter than the latter and with apex truncate ( Fig. 60d). Processes originating about a third of the way along the aedeagus, slightly separated from the base to slightly beyond midlength, then completely separated and diverging, thin with pointed apices. In lateral view shaft curved to midpoint, wide, slightly longer than process, apex tapered; dorsal projection not projecting beyond apex of shaft, generally wide. Gonopore apical. Processes separated near base of stalk, narrow, very long, curved basally and straight apically, apices pointed ( Fig. 60e).   Diagnosis.Genitalia very similar to  O. maesi; in lateral view  O. nielsonihas the aedeagal processes very long and straight, the shaft fairly straight. In  O. maesithe processes are curved, not very long and the shaft is curved.   Distribution.Known only from Costa Rica; 80– 150 m.   Etymology.This species is named in honor of Merv Nielson for his work on Cicadellidae.   Type material:  Holotype, male, COSTA RICA: Puntarenas: Albergue Cerro de Oro,  150–170m, LS 279650-518450,  15-X-1995, L. Angulo, Malaise trap( INBio).  Paratype: COSTA RICA: 1 female, Península Osa, Rancho Quemado,  IV-1991, J. C. Saborio( INBio);  1 male, Parque Nacional Manuel Antonio, Quepos,  80 m,  VI-1991, G. Varela( INBio);  1 female, Estación Agujas, Sendero Zamia,  300m, LS 276750-526550,  16– 20-II-1998, M. Lobo( INBio).  Heredia: 1 female, Estación Biológica La Selva,  50–150m, 10 26 N 84 01 W,  IV-1993(INBio-OET) ( MZCR).  Limon: 1 female, Sector Cocori, 30 Kmal N Cariari,  100m,  7-I-1995, E. Rojas, Malaise trap( INBio);  1 female, same locality and collector,  21-22-III-1995( INBio). LS 279650 1995-10-15 INBio L. Angulo Costa Rica 160 Albergue Cerro de Oro 96 97 1 Puntarenas holotype 1991-04 INBio Peninsula Osa & J. C. Saborio Costa Rica Rancho Quemado 96 97 1 1 paratype 1991-06 INBio Parque Nacional Manuel Antonio & G. Varela Costa Rica 80 Quepos 96 97 1 1 paratype LS 276750 1998-02-16 1998-02-20 1998-02-16 INBio Estacion Agujas & Sendero Zamia & M. Lobo Costa Rica 300 96 97 1 1 paratype 1993-04 MZCR Costa Rica 100 10.433333 Estacion Biologica La Selva 1298 -84.01667 96 97 1 1 Heredia paratype 1995-01-07 INBio Sector Cocori & Km & N Cariari & E. Rojas Costa Rica 100 Limon 96 97 1 1 Limon paratype [494,1217,1754,1780] 1995-03-21 1995-03-22 1995-03-21 INBio Sector Cocori & Km & N Cariari & E. Rojas Costa Rica 100 Limon 96 97 1 1 Limon paratype