Osbornellus transversus 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 : 56

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Osbornellus transversus Domínguez & Godoy

sp. nov.

Osbornellus transversus Domínguez & Godoy , sp. nov.

( Figs. 39a–39e)

Description: Length: 4.4 mm. Member of the O. rarus group ( Fig. 1b). Anterior margin of vertex marked with pale spots enclosing pale ocelli. Whitish diamond-shaped spot bordered with brown behind apex; brown dots behind ocelli. Rest of vertex mottled yellow-brown; coronal suture brown, bordered with white. Pronotum, scutellum and anterior wings similar to O. diamantinus .

Male genitalia: Pygofer about twice as long as greatest width, very projected, apex widely rounded; with a few long macrosetae dispersed along apical half ( Fig.39a). Valve with margins rounded, slightly curved in anterior half. Plates long, wide at base, middle portion narrowed to pointed apex, setae plumose ( Fig. 39b). Style with apophysis short, curved, apex truncate ( Fig. 39c). In ventral view aedeagus wide at base, shaft shorter than ventral processes and hidden by ventral processes ( Fig. 39d). Ventral processes very close together near base, then crossing one another, apices pointed. In lateral view shaft narrow, curved close to pointed apex, shorter than ventral processes; dorsal projection straight, apex narrowed and rounded. Gonopore subapical. Ventral processes separated from base of shaft, narrow, slightly curved in distal third, then straight, apices pointed ( Fig. 39e).

Diagnosis. Very similar externally to O. rarus , but in ventral view the ventral processes of O. transversus cross one another, whereas in O. rarus they do not cross.

Distibution. Known only from Costa Rica; 0–300 m

Etymology. This species is named for ventral processes of the aedeagus which cross one another.

Type material: Holotype, male, COSTA RICA: Guanacaste, Estación Santa Rosa , 300 m, 25-II-7-II- 1995, S. Avila ( INBio) . Paratype: COSTA RICA: Guanacaste: 2 female, Santa Cruz, Parque Nacional Marino Las Baulas, 0m, 17-XII-2000 - 17-I-2001, Y. Cárdenas ( INBio) .


National Biodiversity Institute, Costa Rica