Onega freytagi, Takiya, Daniela Maeda & Cavichioli, Rodney Ramiro, 2004

Takiya, Daniela Maeda & Cavichioli, Rodney Ramiro, 2004, A review of the Neotropical sharpshooter genus Onega Distant, 1908 (Hemiptera: Cicadellidae: Cicadellini), Zootaxa 718, pp. 1-19 : 7-10

publication ID	https://doi.org/ 10.5281/zenodo.158154
DOI	https://doi.org/10.5281/zenodo.5697202
persistent identifier	https://treatment.plazi.org/id/03CF87FA-FF82-FFEC-AF1E-F98CFBB57945
treatment provided by	Plazi
scientific name	Onega freytagi
status	sp. nov.

Treatment

Onega freytagi View in CoL sp. nov.

( Figs 1 View FIGURE 1 D, 2)

Length. male 14.4–14.8 mm.

External morphology. Crown ( Fig. 1 View FIGURE 1 D) with median length 6/10 interocular and slightly less than 4/10 transocular width; apical and lateral concave areas on crown not confluent. Frons mostly concave. Pronotum ( Fig. 1 View FIGURE 1 D) with posterior margin slightly concave. Forewings ( Fig. 1 View FIGURE 1 D) translucent with membrane extending over first, second, and third apical cells, and apex of inner anteapical cell; venation distinct; without anteapical plexus of veins. Hindlegs with femoral setal formula 2:1:1; first tarsomeres with length approximately equal to combined length of distal ones. Other external characters as in generic description ( Young 1977: 285).

Male genitalia. Pygofer ( Fig. 2 View FIGURE 2 A) strongly produced; without processes; posterior margin forming an apical lobe with ventral portion serrate; few microsetae on basiventral region; few regular macrosetae on posterior portion, but over apical lobe these more numerous and differentiated into very short and stout. Subgenital plates ( Figs 2 View FIGURE 2 A, B) attaining roughly midlength of pygofer; not fused basally; with uniseriate macrosetae. Styles ( Fig. 2 View FIGURE 2 C) extending posteriorly beyond apex of connective; apex broad and footshaped. Connective ( Fig. 2 View FIGURE 2 C) approximately Vshaped; dorsal keel strong, elongate, extending anteriorly. Aedeagus ( Fig. 2 View FIGURE 2 D) with shaft elongate; short lateral flanges on basal portion; dorsal region of shaft membranous; ventral region forming single short apical process extending posteriorly beyond gonopore; basal apodemes sclerotized. Paraphysis absent.

Female genitalia. Females unknown.

Coloration. Crown ( Fig. 1 View FIGURE 1 D) pale yellow; pair of large red semicircular areas on apical portion over muscle scars, this pair connected by thin line over apical margin, apical portion of antennal ledges, median line, and external lateral areas of ocelli, brown. Face red; apical margin of clypeus and most of genae and lora brown; antennae pale yellow. Pronotum with anterior fourth red except median portion; this and posterior 3/4 irregularly pale yellow and light brown. Mesonotum with scutum pale yellow, lateral angles red; scutellum dark brown. Forewings mostly light brown, with several irregular translucent white spots; base and costal margin red. Hindwings white. Thoracic pleura and legs mostly red.

Notes. Onega freytagi sp. nov. shares with other Onega species, e.g., O. avella Distant and O. krameri sp. nov., the footshaped apex of the styles ( Fig. 2 View FIGURE 2 C) and the single ventral aedeagal process ( Fig. 2 View FIGURE 2 D); but it can be easily distinguished from other Onega species by its unique male pygofer with apical lobe and differentiated macrosetae ( Fig. 2 View FIGURE 2 A).

Etymology. This species is named in honor of Dr. Paul H. Freytag (University of Kentucky at Lexington, retired) in recognition of his numerous contributions to leafhopper taxonomy. Dr. Freytag made available the holotype of this species and many other Colombian leafhoppers for study.

Habitat. Montane rainforest.

Material examined. Holotype: male, “ COLOMBIA Dept. Cauca \ Cerro de Munchique \ Altitude 2450m Lower \ Montane Rain Forest”, “Flight trap \ R. Wilkerson \ I1676 9”, UKL. Paratype: male, “ ECUADOR: Carchi. 35km \ W Tufino, west slope \ 3120 m. 20 Nov 1987 \ R. Davidson, C. Young \ Cloud forest.”, CMNH.