Onega krameri, 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 : 10-12

publication ID	https://doi.org/ 10.5281/zenodo.158154
DOI	https://doi.org/10.5281/zenodo.5697204
persistent identifier	https://treatment.plazi.org/id/03CF87FA-FF8D-FFEE-AF1E-FC2EFBD27C2D
treatment provided by	Plazi
scientific name	Onega krameri
status	sp. nov.

Treatment

Onega krameri View in CoL sp. nov.

( Figs 1 View FIGURE 1 E, 3)

Length. males 13.1–15.0 mm and female 15.2 mm.

External morphology. Crown ( Fig. 1 View FIGURE 1 E) with median length 5/10 interocular and slightly less than 4/10 transocular width; apical and lateral concave areas on crown not confluent in males, but confluent in female. Frons mostly flattened, concave only on superior portion. Pronotum ( Fig. 1 View FIGURE 1 E) with posterior margin straight to very slightly concave. Forewings ( Fig. 1 View FIGURE 1 E) translucent with membrane extending only over first apical cell; venation distinct; most of corium with plexus of veins, this absent on apical, brachial, and costal cells; clavus with crossveins between claval 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. 3 View FIGURE 3 A) moderately produced; without processes; few microsetae on basiventral region; macrosetae dispersed throughout posterior 2/3. Subgenital plates ( Figs 3 View FIGURE 3 A, B) extending nearly to apex of pygofer; not fused basally; with uniseriate macrosetae. Styles ( Fig. 3 View FIGURE 3 C) extending posteriorly beyond apex of connective; apex broad and footshaped. Connective ( Fig. 3 View FIGURE 3 C) subrectangular; posterior margin with median convexity; dorsal keel strong, elongate, extending anteriorly. Aedeagus ( Fig. 3 View FIGURE 3 D) with shaft elongate and slender; dorsal region membranous; ventral region forming single elongate apical process, extending posteriorly beyond gonopore; basal apodemes sclerotized. Paraphysis ( Fig. 3 View FIGURE 3 D) present as a median sclerite.

Female genitalia. Sternite VII ( Fig. 3 View FIGURE 3 E) well produced posteriorly as a broad truncate lobe; abruptly narrowed on apical half; disc with fine transverse striations. Pygofer ( Fig. View FIGURE 3

3G) with numerous macrosetae distributed along posteroventral margin. Gonoplacs ( Fig. 3 View FIGURE 3 G) with apex broadly round. Second valvulae of ovipositor (similar to Fig. 5 View FIGURE 5 D) bearing 43 noncontiguous teeth; ventral prominence absent. Other invariant generic characters as described above.

Coloration. Crown, pronotum, and mesonotum ( Fig. 1 View FIGURE 1 E) tan; pair of large red semicircular areas on apical portion over muscle scars connected by thin line over apical margin, posterior margin of crown, anterolateral margins of pronotum, irregular large median area of pronotum, and mesoscutellum, red to dark brown (holotype also with anterolateral angles of mesoscutum dark brown); posterior margin of crown behind eyes, short portion of anterolateral margin of mesoscutum, and apical margins of mesoscutellum dark brown to black. Frons and clypeus red; apical portion of clypeus black. Genae, lora, and antennae mostly tan with some irregular brown regions. Forewings ( Fig. 1 View FIGURE 1 E) mostly light brown with numerous tiny translucent white spots, these sometimes connected; claval commissural margin, costal margin, and large apical area covering apical (except first) and anteapical cells, bright red. Hindwings white. Thoracic pleura either tan or red; ventral portion of mesosternum black. Legs tan to red; femurtibia joints, apices of front and midtibiae, dorsal portion of hindfemora, most of hindtibiae, and tarsi, dark brown to black.

Notes. Onega krameri sp. nov. ( Fig. 1 View FIGURE 1 E) is similar in general coloration to O. fassli Young ( Fig. 1 View FIGURE 1 C), especially to specimens with typical color pattern (see notes on the latter species above). Both species have tan to light brown forewings with red covering the base, costal margin, and apex; but O. krameri can be easily separated by the small white spots covering most of its forewings.

Etymology. This species is named in honor of the late Dr. James P. Kramer ( United States National Museum) for his contributions to leafhopper taxonomy. The holotype of O. krameri sp. nov. was previously studied by Dr. Kramer, who labeled it with “ Onega psaros n. sp. ” probably because of its speckled forewing coloration.

Habitat. Occurring on montane rainforests above 1,900 m, reaching Polylepis Ruiz et Pav. (Rosaceae) forests (=Yacutuviana in El Cajas National Park).

Material examined. Holotype: male, “ ECUADOR. Bolivar \ Guaranda (23km NE) \ elev. 7400 ft. [2,255 m] \ 20 June 1975 \ Langley and Cohen”, “EcuadorPeaceCorps \ Smithsonian Institution \ Aquatic Insect Survey”, USNM. Paratypes: male “ ECUADOR: \ Cuenca [Azuay Province] \ [Parque Nacional] El Cajas \ Yacutuviana”, “ ix. 1983 – 2400m \ R. Hadfield \ B.M. 198424”, BMNH; male, “ ECUADOR: Pichincha \ 26km WNW Machachi \ 1900m. 12 nov 1987 ”, “J. Rawlins, C. Young \ R. Davidson. Humid \ primary forest”, CMNH; female, “ ECUADOR \ Cuenca [Azuay Province] \ [Parque Nacional] El Cajas \ Angus [?]”, “ viii.1983 \ R. Hadfield \ B.M. 198424”, BMNH.