Onega musa Ferreira, Lozada & Takiya, 2018, sp. nov.
Creators: name: Ferreira, André Luis Diniz
name: Lozada, Pedro W.
name: Takiya, Daniela Maeda
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Onega
Onega musa

description: Onega musa sp. nov. Ferreira, Lozada & Takiya (Figs. 1–12)   
 Length: males 14.4–14. 6 mm, females: 14.4–15.9 mm.   
 Diagnosis: Body mostly yellow, with brown maculae distributed on crown, pronotum, and forewings. Concavity on frons only on superior fourth. Posterior margin of male pygofer serrate; with long microsetae at basiventral margin. Aedeagus with shaft bisinuate, with elongate preapical dorsal process (bifurcate or not) and apical acute sinuous process extending beyond gonopore.   
 Coloration: Crown yellow; margins besides eyes dark brown; median macula dark-brown (Fig. 1). Face yellow, except pairs of maculae on frons at bases of antennae and on genae, light brown (Fig. 2). Pronotum reddish-brown (Fig. 1) with five spots mostly confluent arranged as a “V” on disc and two semi-circular maculae on posterior margin, bright yellow (Fig. 1). Mesonotum bright yellow; lateral basal angles and apical spot, reddish-brown (Figs. 1–3). Forewing mostly bright yellow, with several irregular reddish-brown (Figs. 1 and 2) areas; apex translucent (Figs. 1–3). Hind wing translucent white (Figs. 1–4). Thoracic pleura mostly yellow with few light brown maculae. Legs mostly dark brown (Figs. 2–4). Abdomen mostly red.   
 External morphology: Crown with median length 3/5 interocular and slightly less than 2/5 transocular width; apical and lateral concave areas on crown not confluent (Fig. 1). Frons mostly flattened, concave only on superior fourth (Fig. 2). Pronotum with posterior margin slightly concave (Fig. 1) or straight (Fig. 3). Forewing with most of corium with plexus of veins, absent on apical, brachial, and costal cells; clavus with crossveins between claval veins (Figs.1 and 2). Hind legs 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).   
 Male genitalia: Pygofer moderately produced; posterior margin rounded and serrate; without processes; macrosetae dispersed throughout posterior 2/3; long microsetae restricted to basiventral margin (Fig. 5). Subgenital plate extending slightly posterior to midlength of pygofer; fused basally; with uniseriate macrosetae and fine setae basiventrally (Fig. 6). Connective approximately Vshaped; dorsal keel strongly sclerotized and elongate, extending anteriorly. Style extending posteriorly beyond apex of connective; apex broad and foot-shaped (Fig. 7). Aedeagus with dorsal apodemes robust; shaft elongate and bisinuate, in lateral view, with a non-bifurcated dorsoapical process above the gonopore (Fig. 8); apex with apical acute sinuous process extending beyond gonopore. Paraphyses absent (Fig. 8).   
 Female genitalia: Sternite VII with posterior margin with shallow median emargination; transverse striations on disc (Fig. 10). Internal abdominal sternite VIII forming simple membranous plate. Pygofer with few macrosetae distributed dorsally on apical third (Fig. 11). First valvula, in ventral view, with base truncate and lateral preapical concavities (Fig. 12). Second valvula bearing 38 non-contiguous teeth (Fig. 14); teeth with denticles distributed on anterior and posterior margin (Fig. 13); apex broadly rounded (Fig. 15). Gonoplac with apex narrowly round; few microsetae on apical margin (Fig. 11).   
 Variation of paratypes: The general coloration of the Ecuadorian paratype varies in having the yellow tone much brighter; dorsal areas darker brown; median crown macula reddish-brown; frons completely yellow; and pronotum discal spots not confluent (Figs. 3 and 4). In the male genitalia, the Ecuadorian paratype have subgenital plates with lateral macrosetae absent at basal third and aedeagus with dorsoapical process bifurcate and shorter apical process (Fig. 9). Peruvian paratypes may also have bifurcate dorsoapical process. Furthermore, the Ecuadorian paratype has a sclerotized round area on the ventral margin of segment X of anal tube.   
 Distribution: PERU, Cajamarca Department and ECUADOR, Zamora Chinchipe Province.   
 Material examined: Holotype, 1 male, “Peru, CA: Cajamarca/06” 8  /  78  ◦  SL 2300 m / 18. X. 1998 / J. Grados ”, MUSM. Paratypes: 2 males and 4 females, same data of holotype, MUSM; 1 male and 1 female, same data of holotype, DZRJ; 1 male, “ ECUADOR: Zimbora – Chinchipe / Via Valladolid – Yngana / 2460 m, 10 August 1993, E./Tapia, G. Onore, C. Young ”, CMNH.   
 Etymology: The specific epithet, in apposition, is in allusion to the similarity of the color pattern of the described species with a ripe banana, fruit belonging to the genus Musa L.   
 Notes: The new species is very distinct of other Onega by its striking coloration (yellow with brown maculae) and its aedeagal shape with a unique dorsoapical process. The new species keys to couplet 7 in Takiya and Cavichioli (2004) ’s key to species of Onega, but it will not proceed further.
description: Published as part of Ferreira, André Luis Diniz, Lozada, Pedro W. & Takiya, Daniela Maeda, 2018, A new species of the sharpshooter genus Onega Distant, 1908 (Hemiptera: Cicadellidae: Cicadellini) from Ecuador and Peru, pp. 324-327 in Revista Brasileira de Entomologia 62 (4) on pages 325-326, DOI: 10.1016/j.rbe.2018.09.005, http://zenodo.org/record/13195986