Diponthus pycnostictus Pictet & Saussure, 1887

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 : 46

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.8270873
persistent identifier	https://treatment.plazi.org/id/03D4221B-6D0B-D420-2DC2-404CFBFFBD4C
treatment provided by	Plazi (2023-08-21 09:40:03, last updated 2024-11-30 02:31:13)
scientific name	Diponthus pycnostictus Pictet & Saussure, 1887
status

Treatment

Diponthus pycnostictus Pictet & Saussure, 1887 View in CoL View at ENA

( Figs. 2c, d View FIGURE 2 , 6e, f View FIGURE 6 , 7a, b View FIGURE 7 , 8b View FIGURE 8 , 9a, b View FIGURE 9 , 10b View FIGURE 10 , 11b View FIGURE 11 , 12a, b View FIGURE 12 , and 13 View FIGURE 13 )

For references on this species see Pocco et al. (2014) and Cigliano et al. (2023).

Diagnosis. This species is distinguished from D. argentinus by the following characters: whole body mottled black, ground body color reddish orange ( Figs. 2c, d View FIGURE 2 , and 6f View FIGURE 6 ) or yellow and dark grey ( Fig. 6e View FIGURE 6 ); phallic complex: valves of cingulum with anterior margin curved and distal portion oblong ( Fig. 10b View FIGURE 10 ).

Chromatic variation. At least two discrete color morphs can be found: color morph reddish orange and dark grey, and color morph yellow and dark grey, in both whole body black mottled ( Pocco et al. 2014).

A complete redescription of this species and the description of the color morphs are in Pocco et al. (2014)

Measurements (in mm). Body length: males: 25.5 (21–33); females: 35.2 (30–40); femur III length: males: 13.8 (12–17); females: 18.3 (15–21); tegmen length: males: 22.1 (19–28); females: 29.2 (26–32).

Material examined: see Appendix 1

Distribution. This species is widely distributed in central and northern Argentina (Buenos Aires, La Pampa, Santa Fe, Entre Ríos, Córdoba, San Luis, La Rioja, Mendoza, Tucumán, Salta) ( Fig. 13 View FIGURE 13 ).

Habitat. In grassland areas with forbs, shrubs, and in edges of low forests.

References

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)

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

Pocco, M. E., Scattolini M. C., Lange, C. E. & Cigliano, M. M. (2014) Taxonomic delimitation in color polymorphic species of the South American grasshopper genus Diponthus Stal (Orthoptera, Romaleidae, Romaleini). Insect Systematics & Evolution, 45 (4), 303 - 350. https: // doi. org / 10.1163 / 1876312 X- 45012108

Figures

FIGURE 2. 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 6. a–c, Diponthus argentinus: male and female, color morph green (a), female (b), male (c); d, D. paraguayensis, male; e, f, D. pycnostictus: e, yellow and gray color morph; f, red and gray color morph, male; g, D. festivus, male (photo credits: Elio Castillo); h, D. puelchus, male; i, D. crassus, male and female

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.