Portanus bifurcus, Carvalho & Cavichioli, 2017

Carvalho, Adenomar N. & Cavichioli, Rodney R., 2017, A new synonym and description of two new species of Portanus (Hemiptera, Cicadellidae, Xestocephalinae) from Brazil and Bolivia, Iheringia, Série Zoologia (e 2017001) 107, pp. 1-5 : 2-3

Portanus bifurcus sp. nov.

( Figs 7-12 )

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Diagnosis. Pygofer produced posteriorly with apical lobe acute, spine-like ( Fig. 8 ); aedeagal apex with pair of elongate processes directed ventrally ( Fig. 11 ), each with one basilateral branch directed ventrally ( Fig. 12 ).

Measurements (mm). Male: total length 7.00. Female unknown.

Coloration. Head and thorax brown; venter brownish-yellow. Crown and pronotum dark-yellow. Pronotum ( Fig. 7 ) with several ivory speckles. Scutellum ( Fig. 7 ) mostly ivory with paired, large dark lateral triangular areas at anterior half. Forewings translucent brown; veins marked with dark brown with small white spots; four hyaline regions on costal margin at apical half; apex completely dark brown.

Description. Crown ( Fig. 7 ), in dorsal view, produced anteriorly with transocular width longer than crown median length; anterior margin slightly angulate; frontogenal sutures not reaching ocelli. Pronotum as wide as transocular width; lateral margins angulate; dorsopleural carina inconspicuous; posterior margin straight; texture smooth with transverse striae ( Fig. 7 ). Scutellum shagreen. Forewings with three closed anteapical cells, median anteapical cell slightly longer than adjacent ones; third apical cell with apex broad, fourth apical cell subtriangular. Appendix absent.

Male genitalia. Pygofer lobe ( Fig. 8 ), in lateral view, longer than high, oblong; posterior margin straight; ventrocaudal margin with acute spine-like process; macrosetae on dorsal half of lobe. Subgenital plates ( Fig. 8 ), in lateral view, extending posteriorly farther than pygofer apex; apical third slightly upturned; basal third with transverse unpigmented line; ventral surface of each subgenital plate wIth unIserIate robust macrosetae and many long and fine microsetae at apical half ( Fig. 9 ). Connective ( Fig. 10 ), in dorsal view, Y-shaped; basiventral process short. Styles ( Fig. 10 ), in dorsal view, with apical fourth wide and forked, with internal branch apical fourth rounded. Aedeagus ( Fig. 11 ), in lateral view, with shaft tubular and long, with a strong bend in basal fourth; dorsal apodemes absent; apex with pair of elongate processes directed ventrally, each with one basilateral branch directed ventrally ( Fig. 12 ). Gonopore apical.

Type-material. Holotype: male, Ft. [Forte] Príncipe / Rio Guaporé / Brasil // 20.VIII.1909 // Carn.[egie] Mus. [eum] / Acc4043 // Para- / type [ Scaphoideus punctulatus Osborn, 1923 ], CMNH . Paratype: 1 male, same label data as holotype, CMNH .

Etymology. The species epithet derives from the Latin word bifurcus , meaning “bifurcated”, in allusion to the aedeagal apex with pair of elongate and bifurcated processes directed ventrally.

Remarks. Portanus bifurcus sp. nov. is indistinguishable from many other Portanus species based on color pattern, being most similar to P. hasemani ( Baker, 1923) , P. uhleri Kramer, 1964 , P. pictus Carvalho & Cavichioli, 2001 , and P. spinosus DeLong, 1982 . However, it can be distinguished from these and other species by the characteristics given in the diagnosis, especially the well-developed aedeagal apex with pair of elongate processes, each with one basilateral branch directed ventrally.

Figures

Figs 7-19. Portanus bifurcus sp. nov.: 7, crown, pronotum and scutellum; 8, pygofer, valve and subgenital plate, lateral view; 9, subgenital plate, ventral view; 10, connective and left style, ventral view; 11, aedeagus, lateral view; 12, aedeagus, caudal view. Portanus delsara sp. nov.: 13 crown, pronotum and scutellum; 14, pygofer, lateral view; 15, pygofer, caudal view; 16, subgenital plate, ventral view; 17, connective, dorsal view; 18, style apex, dorsal view; 19, aedeagus, lateral view.