Diponthus nigroconspersus ( Stål, 1861 )

Pocco, Martina E., Lange, Carlos E. & Cigliano, María Marta, 2023, Relationships and taxonomy of the genus Diponthus Stål (Orthoptera: Acridoidea Romaleidae), Zootaxa 5336 (1), pp. 33-81 : 48

publication ID	https://doi.org/10.11646/zootaxa.5336.1.2
publication LSID	lsid:zoobank.org:pub:F31F6A72-21B8-455D-8E64-3CE59613599C
DOI	https://doi.org/10.5281/zenodo.8270877
persistent identifier	https://treatment.plazi.org/id/03D4221B-6D09-D422-2DC2-42F9FE6ABD44
treatment provided by	Plazi (2023-08-21 09:40:03, last updated 2024-11-30 02:31:13)
scientific name	Diponthus nigroconspersus ( Stål, 1861 )
status

Treatment

Diponthus nigroconspersus ( Stål, 1861) View in CoL stat. resurr.

( Figs. 3a, b View FIGURE 3 , 7a, b View FIGURE 7 , 8d View FIGURE 8 , 9a, b View FIGURE 9 , 10d View FIGURE 10 , 11d View FIGURE 11 , 12a, b View FIGURE 12 , and 13 View FIGURE 13 ).

Acridium (Diponthus) nigroconspersum Stål, 1861 [1860]: 327 (Holotype, female, Uruguay, Montevideo, NHRS Stockholm).

Diponthus nigroconspersus: Walker, 1870: 637 View in CoL ; Pictet and Saussure, 1887: 374; Bruner, 1900: 65; Kirby, 1910: 382; Liebermann, 1939: 187; Dirsh, 1965: 43 (junior syn. of Diponthus cribratus View in CoL ); Carbonell et al. 2023 ( Diponthus cribratus View in CoL ); Cigliano et al. 2023 ( Diponthus cribratus View in CoL ).

Acridium nigroconspersum is the type species of the genus, subsequently designated by Kirby, W. F. (1910) in “A Synonymic Catalogue of Orthoptera View in CoL ( Orthoptera Saltatoria View in CoL , Locustidae View in CoL vel Acridiidae View in CoL )”, 3(2): 674 pp.

Comments. Dirsh (1965) considered Diponthus nigroconspersus (Stål) as junior synonym of Diponthus cribratus (Serville) . However, after examination of type specimens of D. cribratus and D. nigroconspersus , and based on the original descriptions, as well as the examination of specimens collected in the distribution area of the species, we consider that Diponthus nigroconspersus is a valid species.

Diagnosis. Pronotal disc with a median dorsal longitudinal yellow band, wide in prozona, thinner in metazona; prozona with two oblique bands and lower area of lateral lobes yellow-ochre; metazona with circular mottles darkcolored in lateral lobes and elongated in metazona ( Figs. 3a, b View FIGURE 3 , and 7a, b View FIGURE 7 ). Prosternal tubercle straight. Tegmina with longitudibnal veins light brown and transverse veins cream colored, delimiting irregular cells with central spots dark brown ( Fig. 8d View FIGURE 8 ). Epiproct quadrangular, furculae large with rounded tips, with tubercle prominent along the median longitudinal groove ( Fig. 7b View FIGURE 7 ). Male cerci long, surpassing the tip of epiproct; distal third down-curved with acute apex ( Fig. 7a View FIGURE 7 ). Dorsal valves of aedeagus with down-curved apex; valves of cingulum sub-rectangular, with posterior margin of apex rounded, in lateral view ( Fig. 10d View FIGURE 10 ). Sclerotized part of cingulum V-shaped; zygoma of cingulum with angulate borders ( Fig. 11d View FIGURE 11 ). Lophi of epiphallus rectangular and wide with upper margins oblique, in frontal view ( Fig. 12b View FIGURE 12 ), placed parallel to the bridge, in dorsal view, extended towards the posterior process of lateral plates ( Fig. 12a View FIGURE 12 ).

Redescription and chromatic characters, and material examined. See Appendix 1

Measurements (in mm). Body length: males: 45.3 (45–46); females: 57.1 (55.5–59); femur III length: males: 18.6 (17–20); females: 24.3 mm (24–25); tegmen length: males: 34.3 (32–36); females: 42.1 (40–43.5).

Distribution. This species is distributed in Argentina (Buenos Aires), and Uruguay (Tacuarembó, Artigas, and Montevideo) ( Fig. 13 View FIGURE 13 ).

References

Bruner, L. (1900) Second Report of the Merchants' Locust Investigation Commission of Buenos Aires. Hunter-Woodruff Printing, Lincoln, Nebraska, 80 pp. https: // doi. org / 10.5962 / bhl. title. 9681

Carbonell, C. S., Cigliano, M. M. & Lange, C. E. (2023) Acridomorph (Orthoptera) species from Argentina and Uruguay, Version II Available from: https: // biodar. unlp. edu. ar / acridomorph / (accessed 1 March 2023)

Cigliano, M. M., Braun, H., Eades, D. C. & Otte, D. (2023) Orthoptera species file. Version 5.0 / 5.0. Available from: http: // Orthoptera. SpeciesFile. org (accessed 1 March 2023)

Dirsh, V. M. (1965) Preliminary note for the revision of the genus Schistocerca Stal, 1873 (Orth. Acridoidea). Eos: Revista EspanTola de Entomologiia, 41 (1), 31 - 43.

Kirby, W. F. (1910) A Synonymic Catalogue of Orthoptera (Orthoptera Saltatoria, Locustidae vel Acridiidae). 3 (2). British Museum (Natural History), London, 674 pp.

Liebermann, J. (1939) Catalogo sistematico y biogeografico de acridoideos argentinos. Revista de la Sociedad Entomologica Argentina, 10, 125 - 230.

Pictet, A. & Saussure, H., (1887) Catalogue d'Acridiens. Mitteilungen der Schweizerischen Entomologischen Gesellschaft, 7 (9), 331 - 376.

Stal, C. (1861 [1860]) Orthoptera species novas descripsit. In Kongliga Svenska fregatten Eugenies resa omkring jorden under befal af C. A. Virgin aren 1851 - 1853 (Zoologi). Utgifna of K. Svenska Vetanskaps Uppsala, Almqvist & Wiksells, Akademien Stockholm, pp. 299 - 350.

Walker, F. (1870) s. n. In: Catalogue of the Specimens of Dermaptera Saltatoria in the Collection of the British Museum, London. Vol. 4. British Museum (Natural History), Department of Zoology, pp. 605 - 809.

Figures

FIGURE 3. Diponthus species. Males, habitus lateral views (a, c, e, g, i, k) and dorsal views (b, d, f, h, j, l). Species as indicated. Scale bar= 1 cm. Numbers indicate characters and states used in the cladistics analysis.

FIGURE 7. Head and pronotum, in lateral views (a) and dorsal views (b). Diponthus species as indicated. Numbers indicate characters and states used in the cladistics analysis.

FIGURE 8. Tegmina, color pattern of venation. Diponthus species, as indicated. Numbers indicate characters and states used in the cladistics analysis.

FIGURE 9. Male abdominal terminalia, in lateral views (a) and dorsal views (b). Diponthus species as indicated. Numbers indicate characters and states used in the cladistics analysis.

FIGURE 10. Distal portion of aedeagal valves, lateral view. Diponthus species, as indicated.

FIGURE 11. Distal portion of aedeagal valves, dorsal view. Diponthus species, as indicated.

FIGURE 12. Epiphallus, dorsal views (a) and frontal views (b). Diponthus species, as indicated. Numbers indicate characters and states used in the cladistics analysis.