Selymbria Stal 1861
Creators: name: Ruschel, Tatiana Petersen
name: Paladini, Andressa
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Selymbria

description: Selymbria Stål, 1861
Diagnosis: Selymbria is characterized by the triangular head in dorsal view, prominent eyes, wider than the lateral angle of the pronotal collar, auxiliary auditory structure absent in males, pygofer with upper lobes, long and undivided uncus, and an aedeagus with a short theca, resembling those in species of Tettigarcta White, 1845 (Tettigarctidae) (Marshall et al., 2018; Sanborn, 2019).
Key to species of Selymbria
1. Forewings without infuscations.................................................................................................................................................................................................... 2
— Forewings with spots of infuscation.............................................................................................................................................................................................. 3
2. Basal area of fore and hindwings bluish green; lateral angle of pronotal collar strongly convex, apex directed posteriorly; sternite VII of female as Fig. 3P; (Brazil)................................................................................................................................................................................................ S. subolivacea (Stål, 1862)
— Basal area of fore and hindwings reddish orange;lateral angle of pronotal collar not strongly convex,apex not posteriorly directed (Brazil) ............................... .............................................................................................................................................................................................................. S.pandora Distant,1911
3. Forewings with infuscation restricted to apex,not on proximal apical cell veins or crossveins......................................................................................................4
— Forewings with infuscation on apex,on proximal apical cell veins and/or crossveins ................................................................................................................... 9
4. Ulnar cells 1, 2 and 3 of forewings nearly the same length, u1 e u2 with same width, u3 twice as wide as u1 and u2; cubitus anterior 1 of forewing curved between split with cubitus anterior 2 and mediocubital crossvein;sternite VII of female as Fig.3D (French Guiana).................................................................. ........................................................................................................................ S.chevauxensis Sanborn,2019 (fig.2, https://doi.org/10.5281/zenodo.3995206
— Ulnar cell 1 longer than u2 and u3 of forewings,u3 slightly wider than u1 and u2; cubitus anterior 1 of forewing straight between split with cubitus anterior 2 and mediocubital crossvein;shape of sternite VII of female different from Fig.3D .................................................................................................................... 5
5. Abdominal tergites castaneous; tergite 1 and dorsum of tergites 2-3 nearly or entirely piceous; uncus stout, half its length extending beyond anal styles; sternite VII of female as Fig.3I (French Guiana)................................................. S.guianensis Sanborn,2019 (fig.6, https://doi.org/10.5281/zenodo.3995214)
— Abdominal tergites entirely piceous or fuscous;less than half uncus length extending beyond anal styles or uncus not surpassing anal style;shape of sterniteVII of female different from Fig.3I (Central America)..................................................................................................................................................................... 6
6. Abdomen with white pubescent transverse fascia on anterior margin of tergite 3 and 7 (males) and tergite 2, 3,and 7 (females);sternite VII of female as Fig.3E (Costa Rica and Panama)..................................................................................... S.cinctifera Sanborn,2019 (fig.3, https://doi.org/10.5281/zenodo.3995208)
— Abdomen lacking white pubescent transverse fascia (both males and females); shape of sternite VII of female different from Fig. 3E (Panama, Costa Rica and Guatemala)............................................................................................................................................................................................................................... 7
7. Lateral angle of pronotal collar convex,uncus not surpassing anal style;sternite VII of female as Fig.3H (Guatemala).................................................................. .................................................................................................................... S.guatemalensis Sanborn,2019 (fig.5, https://doi.org/10.5281/zenodo.3995212)
— Lateral angle of pronotal collar rectangular;uncus surpassing anal style;shape of sternite VII of female different from Fig.3H (Costa Rica and Panama)........... 8
8. Forewing with a slightly infuscation at the tip; apex of theca forming two acute angles laterally; sternite VII of female as fig. 3A; emergence period from late November to February ........................................ S.ahyetios Ramos & Wolda,1985 (fig. https://biogeodb.stri.si.edu/bioinformatics/dfm/metas/view/48661)
— Forewing with a strongly infuscation at the tip;apex of theca rounded;sternite VII of female as Fig.3M; emergence period from late April to mid-September... ............................................................................ S.pluvialis Ramos & Wolda,1985 (fig. https://biogeodb.stri.si.edu/bioinformatics/dfm/metas/view/48643)
9. Forewings with infuscation slightly covering and not expanding from crossveins radial and radiomedial; male meracanthus broadly triangular, apex forming obtuse angle;sternite VII of female as Fig.3F;(French Guiana).......................... S.danieleae Sanborn,2011 (fig.6, https://doi.org/10.5281/zenodo.7671516)
— Forewings with infuscation covering and expanding from crossvein radial and radiomedial;male meracanthus triangular with apex forming acute angle;shape of sternite VII of female different from Fig.3F ......................................................................................................................................................................... 10
10. Operculum in females shaped as scalene triangle,posterior and lateral margins forming an obtuse angle;sternite VII of female as Fig.3N (Costa Rica) .............. ............................................................................................................... S.puntarenasensis Sanborn,2019 (fig.10, https://doi.org/10.5281/zenodo.3995222)
— Operculum in females shaped as a right triangle with posterior and lateral margins forming a right angle;shape of sternite VII of female different from Fig.3N 11
11. Male meracanthus longer than wide,almost reaching posterior margin of male operculum;sternite VII of female as Fig.3C ........................................................ ......................................................................................................................... S.boliviaensis Sanborn,2019 (fig.1, https://doi.org/10.5281/zenodo.3995204)
— Male meracanthus as long as wide,not reaching posterior margin of male operculum;shape of sternite VII different from Fig.3C ........................................... 12
12. Tip of labium reaching to posterior of middle leg coxae (Brazil, Ecuador and Peru) .................................................................................................................... 13
— Tip of labium not reaching to middle leg coxae (Argentina, Brazil and Peru)..............................................................................................................................15
13. Male operculum semilunar;uncus as wide as basal lobes in ventral view;sternite VII of female as Fig.3L (Peru)........................................................................... ............................................................................................................... S.madredediosensis Sanborn,2019 (fig.9, https://doi.org/10.5281/zenodo.3995220)
— Male operculum subrectangular;uncus narrower than basal lobes in ventral view;shape of sternite VII of female different from Fig.3L (Brazil and Ecuador). 14
14. Male meracanthus near operculum internal angle;uncus longer than anal style and almost the same length of dorsal beak in lateral view;theca with bifurcated apex;sternite VII of female as Fig.3G (Ecuador)............................................. S.ecuadorensis Sanborn,2019 (fig.4, https://doi.org/10.5281/zenodo.3995210)
— Male meracanthus distant to operculum internal angle;uncus shorter than anal style and dorsal beak combined in lateral view;theca without bifurcated apex; sternite VII of female as Fig.3O (Brazil)........................................................................................................................................... S.stigmatica (Germar,1834)
15. Male meracanthus with acute apex;uncus flat in lateral view;sternite VII of female as Fig.3J (Argentina and Brazil) ................................................................... ........................................................................................................................ S.iguazuensis Sanborn,2019 (fig.7, https://doi.org/10.5281/zenodo.3995216)
— Male meracanthus with rounded apex;uncus broad in lateral view;shape of sternite VII of female different from Fig.3J (Brazil and Peru).............................. 16
16. Male operculum semilunar;uncus shorter than anal style in lateral view;sternite VII of female as Fig.3K (Peru).......................................................................... .......................................................................................................................... S.loretoensis Sanborn,2019 (fig.8, https://doi.org/10.5281/zenodo.3995218)
— Male operculum subrectangular;uncus longer than anal style in lateral view;sternite VII of female as Fig.3B (Brazil) ........... S.amazonensis sp.nov. (Figs.1-2)
description: Published as part of Ruschel, Tatiana Petersen & Paladini, Andressa, 2024, Selymbria Stål, 1861 (Hemiptera: Cicadidae: Tibicininae): description of a new species with notes on the genus taxonomy and distribution, pp. 1-13 in Papéis Avulsos de Zoologia 64 on pages 2-3, DOI: 10.11606/1807-0205/2024.64.003, http://zenodo.org/record/10552187