Osbornellus trinax Domínguez & Godoy, 2010

Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 13-14

publication ID


persistent identifier


treatment provided by


scientific name

Osbornellus trinax Domínguez & Godoy

sp. nov.

Osbornellus trinax Domínguez & Godoy , sp. nov.

( Figs. 15a–15e)

Description. Length: 5.74–6.7 mm. Member of the O. auronitens group ( Fig. 1a). Vertex roundly angulate, median length less than distance between eyes at posterior margin. General color yellowish. Face pale brown. Vertex with thin pale yellow band along anterior margin between ocelli, bordered anteiorly and posteriorly by dark brown bands; narrow white area across median half of vertex behind marginal lines, bordered posteriorly by narrow brown line at apex of coronal suture; broad, bright red band across vertex between anterior portions of eyes; transverse white band extending below the apical band, bordered posteriorly by a short black line, not extending to the margins of the eyes; white band along the posterior margin with two weak brown dots on the anterior border. Pronotum light yellow, with orange band along anterior margin, bright orange dot in center, and opaque orange band above posterior margin interrupted at center by light, irregular longitudinal stripe. Scutellum opaque yellow with large orange spots in basal angles, small white spots at apices of basal angles and halfway along lateral margins. Anterior wing yellow, with white markings and a few elongate brown spots; veins brown, usually with brown dots at the end of the costal veinlets, claval vein and claval suture; apical cells with brown markings.

Male genitalia: Pygofer more than twice as long as greatest width, strongly produced posteriorly, narrow and rounded at apex; with long macrosetae dispersed along apical half of pygofer ( Fig. 15a). Valve slightly quadrate. Plates long, sharply pointed at apex and with filamentous setae ( Fig. 15b). Style with long, straight apophysis, rounded at apex. ( Fig.15c). Aedeagus in ventral view wide at base; shaft shorter than ventral processes ( Fig. 15d). Ventral processes arising at a third of the way along the total length of aedeagus, separated from each other from the base, curved in the middle, apices tapered and convergent. Gonopore apical. In lateral view shaft curved dorsad, apex truncate, ventral processes straight, overlaping aedeagus; dorsal projection stout, expanded to blunt tip ( Fig. 15e).

Diagnosis. Very similar to O. anonae in appearance, but the aedeagus of O trinax in ventral view has the ventral processes convergent distally, whereas they are divergent in O. anonae .

Distribution. Known only from Costa Rica; 700–2300 m.

Etymology. This species is named for the trident form of the ventral processes and aedeagal shaft in ventral view.

Type material: Holotype, male, COSTA RICA: Guanacaste, Estación Mengo, SW Volcan Cacao, 1100 m, 1988–1989, P. Hanson ( CAS) . Paratypes: COSTA RICA: Alajuela, 1 male, San Ramón, Reserva Biológica Alberto Brenes, Estación San Lorencito , 900m, 7-III-16-IV-1995, G. Carballo ( INBio) . Cartago: 2 female, El Guarco, San Isidro, Finca Génesis , 2300m, VII-1996, P. Hanson & C. Godoy ( MZCR) ; 1 male, 4 KM, N Ojo de Agua , 30-1-1993, M.W. Nielson ( MZCR) . Guanacaste: 2 male, 8 female, Liberia, Parque Nacional Guanacaste, Estación Cacao , 1000–1150 m, VII-1996, A. Masís ( INBio) ; 1 male, 2 female, Valle Miravalles, Sector Azufral , 1100m, 17-III-3-IV-2003, J. Azofeifa, B.Hernández, J.D. Gutiérrez ( INBio) ; 2 male, 3 female, Valle Miravalles, Estación Cabro Muco , 1100m, 23-VI-6-VII-2003, J.Azofeifa, J.Gutiérrez, B.Hernández ( INBio) ; 23 male, 36 female, Estación Cacao, SW side Volcan Cacao , 1000–1400m, 1988–1989, GNP Biodiversity Survey ( BMNH, INBio, USNM) ; 6 male, 3 female, same locality and collector, 1990 ( INBio) ; 1 male, same locality and collector, III-VIII-1990 ( INBio) ; 2 male, 4 female, same locality and collector, VI- 1990 ( INBio) ; 18 male, 2 female, same locality, V-1991, A. Guadamuz, D. Garcia ( INBio) ; 1 male, 1 female, same locality and collector, 21-29-V-1992 ( INBio) ; 1 male, same locality, 21-28-V-1992, R. Vargas ( INBio) ; 2 female, Arenales, W Volcan Cacao , 900 m 1988–1989, P. Hanson ( MZCR) ; 36 male, 18 female, Estación Mengo , SW Volcan Cacao, 700–1100 m, 1988–1989, P. Hanson ( BMNH, MZCR, USNM, MIUP) ; 1 male, 2 female, same locality and collector, V-1989 ( MZCR) ; 2 male, same locality, 1100m, II-1989, I. Gauld ( MZCR) ; 1 male, same locality, II-IV-1989, I. Gauld ( MZCR) ; 1 male, Estación Pitilla , 9km S Santa Cecilia, 700 m, 21-III-21-IV-1989, GNP Biodersity Survey ( INBio) ; 1 female, same locality, VI-1994, P. Rios ( INBio) ; 3 female, same locality and collector, V-1994 ( INBio) ; 5 female, Estación Pitilla, 9 Km S Santa Cecilia , 700 m, V-1989, P. Hanson ( MZCR) . Puntarenas , 33 male, 35 female, Guacimal, San Luis, Monteverde , 1100 m, VI-1994, Z. Fuentes ( INBio) ; 3 male, 5 female, same locality and collector, IV-V-1993 ( INBio) ; 2 male, same locality and collector, II-1995 ( INBio) ; 11 male, 5 female, same locality and collector, V-1995 ( INBio) ; 3 female, same locality and collector, 27-V-1998 ( INBio) ; 1 male, same locality and collector, IV-V-1993 ( INBio) ; 1 male, 1 female, Estación La Casona , 1520m, IV- 1-VI-1995, K. Martinez, Malaise ( INBio) ; 1 male, same locality, IV-1994, N. Obando ( INBio) ; 1 male, 5 male, same locality, 23-IV-1- VI-1995, K. Martinez ( INBio) ; 1 male, same locality, 3-24-IV-1995, A. Azofeifa, Mantillo ( INBio) .


California Academy of Sciences


National Biodiversity Institute, Costa Rica


Museo de Zoologia


Smithsonian Institution, National Museum of Natural History