Osbornellus cruxatus 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 : 62-64

Osbornellus cruxatus Domínguez & Godoy , sp. nov.

( Figs. 43a–43e)

Description. Length: 5.6 mm. Member of the O. rarus group ( Fig. 1b). Vertex angulate, median length about equal to distance between eyes at posterior margin. General color pale yellow. Head with dark brown transverse lines and two elongate black marks before the vertex; transverse apical band cream colored, thin, curved, extending to the ocelli, and bordered on both sides by black; with a wide, triangular, clear mark extending behind apical band, lightly bordered with pale brown; with a black square behind each ocellus and an elongate clear mark on the internal margin; apex of coronal suture with wide, transverse, pale brown line; white mark in form of inverted “T” bordered by a thin brown line; internal margin of eye with thin pale yellow line; rest of vertex orange. Pronotum clear colored with yellowish brown tones, with irregular clear and brown bands along anterior margin. Scutellum with two brown triangles anteriorly, with white and brown border, pale yellow in the center, with white marks bordered by brown near the base, white at base. Anterior wing yellow, with several white marks and a few elongate brown marks; veins brown, usually with brown spots at tips of costal veinlets, claval veins and claval suture; apical cells with brown marks.

Male genitalia: Pygofer about 1.5 times as long as greatest width; apical portion short, slightly projected, truncate, almost square; apex wide and concave; with a few medium-sized macrosetae dispersed along apical third ( Fig.43a). Valve with margins rounded, slightly curved in anterior half. Plates wide ( Fig. 43b). Style with apophysis long, curved, striate, apex short ( Fig. 43c). Aedeagus in ventral view wide at base and curved; shaft shorter than ventral process; dorsal projection small, tapered ( Fig. 43d). Ventral processes crossing one another, tapered, apices pointed. In lateral view shaft narrow, curved dorsad, apex truncate, shaft shorter than ventral processes; dorsal projection short, straight, widened at midlength, narrowed at tip. Gonopore apical. Ventral processes separated from shaft, slightly curved caudad, similar in length to shaft, apices pointed ( Fig. 43e).

Diagnosis. Very similar to O. transversus , but in lateral view the aedeagal shaft of O. cruxatus has a truncate apex and the ventral processes are similar in length to the shaft. In O. transversus the shaft has a pointed apex and the ventral processes are longer than the shaft.

Distribution. Known only from Costa Rica; 1200 m

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

Type material: Holotype, male, COSTA RICA: San José. San Pedro, UCR Campus , 1200 m, 26-VIII- 1992, M.W. Nielson ( CAS). Apex of plates damaged . Paratype: COSTA RICA: San José: 2 male, San Antonio de Escazu , 25 Mar to 9 April 1984, Malaise trap, S. A. Cameron ( SEMC) ; 1 female, San Antonio de Escazu , 10 April 1984, Malaise trap, S. A. Cameron ( SEMC) .