Nosola Stål, 1866a

Ruschel, Tatiana P. & Sanborn, Allen F., 2021, Two new genera and species of Fidicinini Distant, 1905 with a re-description of Nosola Stål, 1866 (Hemiptera, Auchenorrhyncha, Cicadidae), Zootaxa 4920 (4), pp. 509-527 : 511

publication ID	https://doi.org/ 10.11646/zootaxa.4920.4.3
publication LSID	lsid:zoobank.org:pub:22E8AB54-654D-4882-9084-41F0D229D010
DOI	https://doi.org/10.5281/zenodo.4531850
persistent identifier	https://treatment.plazi.org/id/03D787C8-EC48-FFCD-FFE0-5979FDDE36F6
treatment provided by	Plazi
scientific name	Nosola Stål, 1866a
status

Treatment

Nosola Stål, 1866a View in CoL View at ENA

( Figs. 1–4 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 )

Nosola Stål, 1866a: 7 View in CoL (gen. nov.; key)

Type species. Nosola paradoxa Stål, 1866b View in CoL , designated by Distant (1906).

Species included. Nosola paradoxa Stål, 1866b .

Remarks. The genus was designated in a key based on the obtusely conical and anteriorly produced postclypeus and the strongly curved base of the costal margin of the fore wing ( Stål, 1866b). No complete description of the genus has been produced previously.

Description. Medium sized cicada (body length about 25–29 mm).

Head broader than anterior pronotum but not as wide as pronotal collar, about as wide as mesonotum; eyes larger than space of vertex between internal margin of eyes and frontoclypeal suture; lateral ocelli widely separated, separated by a greater distance from each other than from median ocellus ( Fig. 2B View FIGURE 2 ). Supra–antennal plate reaching half distance to eye ( Fig. 2B View FIGURE 2 ). Postclypeus very prominent extending well beyond anterior margin of head forming acute angle in dorsal view, longer than vertex ( Fig. 2B View FIGURE 2 ), rectangular rectangular in ventral view ( Fig. 2C View FIGURE 2 ), obtusely angled in lateral view. Anteclypeus with ventralsurface tumid, lateroposterior margins inclined forming acute angle, posterolateral flaps absent ( Fig. 2C View FIGURE 2 ). Pronotum shorter than mesonotum, lateral part of pronotal collar broad and convex ( Fig. 2B View FIGURE 2 ). Mesonotum covering dorsal metanotum; cruciform elevation short, reaching anterior margin of abdominal tergite 1, central area swollen, lateral areas flat, angle of posterolateral projections obtuse ( Fig. 2A View FIGURE 2 ). Anterior basisternum 3 obtusely angled, not prominent relative to mesocoxae ( Fig. 2D View FIGURE 2 ); three segmented tarsi; wings hyaline, forewing costal margin strongly curved and widened at base, radial cell expanded, eight apical cells long, extending about one third of forewing length, apical cell 2 about half apical cell 1 length, infuscation present, marginal area present; hindwing with six apical cells, cubital cell 1 expanding to junction with apical cell 6, anal lobe broader than cubital cell 1, anal vein 3 curved at distal terminus, marginal area present ( Fig. 2A View FIGURE 2 ). Male operculum semilunar, not meeting medially; meracanthus short not reaching middle operculum; lateral metascutellar plate not covering posterolateral timbal chamber ( Fig. 2E View FIGURE 2 ). Female operculum triangular, short, apex not surpassing posterior sternite II ( Fig. 4C View FIGURE 4 ). Male abdomen longer than distance between apex of posclypeus and cruciform elevation in dorsal view, tergite 1 visible, about as long as median portion length of tergite 2 but longer than cruciform elevation ( Fig. 2A View FIGURE 2 ). Timbal cover flat, incomplete dorsally exposing dorsal timbal ( Fig. 2F View FIGURE 2 ). Male sternite I about twice metacoxae length, sternite I swollen medially ( Fig. 2D View FIGURE 2 ), sternite VII sub–rectangular, medial epipleurites reflexed dorsally ( Fig. 2G View FIGURE 2 ). Female sternite VII rectangular, wider than long, notch in posterior margin ( Fig. 4E View FIGURE 4 ). Anterior margin of pygofer distal shoulder terminating in an acute projection, dorsal beak absent, pygofer upper lobe absent, pygofer basal lobe well-developed ( Fig. 3C View FIGURE 3 ). Uncal dorsal crest developed, projected posteriorly, lateral branches of uncus present, projected anteriorly, ventral apophyses fused with lateral branches of uncus ( Fig. 3A, B View FIGURE 3 ). Theca a simple bent tube with fissure in distal third where vesica originates; thecal and vesical processes absent; vesica extruded, long and slender, ornamented with cornuti and spine of vesica ( Fig. 3D, E View FIGURE 3 ).

Measurements (mm). Length of body: 25.67–29.72; length of fore wing: 32.33–34.84; width of fore wing: 10.27–12.04; length of head: 4.05–4.41; width of head including eyes: 8.64–9.81; width of pronotum including suprahumeral plates: 9.27–11.25; width of mesonotum: 8.1–9.09.

Diagnosis (extended from Sanborn, 2019). The genus can be distinguished from all other genera in Fidicinini by the following combination of characters: body with small spines on surface; head including eyes broader than anterior pronotum; supra–antennal plates not meeting eyes; prominent postclypeus extending well beyond anterior margin of head, postclypeus twice the length of the supra–antennal plate in dorsal view, rectangular in ventral view, obtusely angled in lateral view; anteclypeus tumid, posterolateral margins inclined forming an acute angle, posterolateral flaps on anteclypeus absent; anterior basisternum 3 obtusely angled, not prominent relative to mesocoxae; three segmented tarsi; male operculum semilunar; forewings with costal vein strongly arched and expanded at base, expanded proximal costal margin forming an arc bringing the leading edge of the fore wing almost to the apex of the postclypeus; apical cells about one third forewing length; distal shoulder of pygofer hook-like; uncal dorsal crest fused and projected posteriorly; lateral branches of uncus slender and anteriorly projected; ventral apophyses fused with lateral branches of uncus; theca a simple bent tube with a vertical row of cornuti toward the fissure in distal third where vesica originates; thecal and vesical processes absent; vesica extruded, long and slender, ornamented with cornuti and spine of vesica.