Diponthus, Stal, 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 : 44-45

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.8270869
persistent identifier	https://treatment.plazi.org/id/03D4221B-6D0D-D421-2DC2-4130FA6EBA9C
treatment provided by	Plazi
scientific name	Diponthus
status

Treatment

Key to species of Diponthus View in CoL View at ENA

1. Macropterous insects. Pronotum with a median longitudinal light-colored band….................................. 2

- Brachypterous insects ( Figs. 3k, l View FIGURE 3 , and 5a–d View FIGURE 5 ). Pronotum without a median longitudinal light-colored band ( Figs. 3l View FIGURE 3 , and 5d View FIGURE 5 )................................................................................... D. colorbellus sp. nov.

2. Prosternal tubercle with apex directed backwards. Interocular distance wide (wider than the width of fastigium apex)..... 3

- Prosternal tubercle with apex straight. Interocular distance wide or narrow........................................ 6

3. Pronotal disk with a longitudinal band and two lighter-colored oblique bands in prozona............................ 4

- Pronotal disk with three light-colored longitudinal bands..................................................... 5

4. Oblique bands not reaching the metazona ( Fig. 7b View FIGURE 7 ); body color dark-brown, black and yellow-ocher, completely black-mottled ( Fig. 3c, d View FIGURE 3 ); tegmina with background black and incomplete transverse veins yellow ( Figs. 3c, d View FIGURE 3 , and 8e View FIGURE 8 ); male furculae small ( Fig. 9b View FIGURE 9 )................................................................................... D. cribratus View in CoL

- Oblique bands reaching the metazona ( Fig. 7b View FIGURE 7 ); body color shiny black and yellow-ocher, not mottled ( Fig. 3e, f View FIGURE 3 ); tegmina with background green and complete transverse veins delimiting irregular cells ( Figs. 3e, f View FIGURE 3 , and 8f View FIGURE 8 ); male furculae larger ( Fig. 9b View FIGURE 9 )............................................................................................ D. festivus View in CoL

5. Frons straight in lateral view ( Figs. 3g View FIGURE 3 , and 7a View FIGURE 7 ); male cerci very long, digitiform ( Fig. 9a View FIGURE 9 ); larger body size (males: x̄ 35, 3 mm; females: x̄ 46 mm) ( Fig. 3g View FIGURE 3 ); fore and middle femora robust ( Fig. 3g View FIGURE 3 ); tegmina green ( Fig. 3g, h View FIGURE 3 )................ D. dispar View in CoL

- Frons rounded in lateral view ( Figs. 3i View FIGURE 3 , and 7a View FIGURE 7 ); male cerci shorter, tapering towards the apex ( Fig. 9a View FIGURE 9 ); smaller body size (males: x̄ 26, 8 mm; females: x̄ 38, 3 mm) ( Fig. 3i View FIGURE 3 ); fore and middle femora thinner ( Fig. 3i View FIGURE 3 ); tegmina with discal area greenish, medial area hyaline, anal area green ( Figs. 3i, j View FIGURE 3 , and 8h View FIGURE 8 )................................................ D. electus View in CoL

6. Interocular distance wide ( Fig. 7b View FIGURE 7 ); large insects (males: x̄ 45, 3 mm; females: x̄ 57, 1 mm) ( Fig. 3a View FIGURE 3 ); median dorsal carina of pronotum cut by the main transverse sulcus ( Fig. 7b View FIGURE 7 ); body completely mottled ( Fig. 3a, b View FIGURE 3 )............. D. nigroconspersus View in CoL

- Interocular distance narrower; medium size insects (males from 19 to 33 mm; females from 25 to 47 mm); median dorsal carina of pronotum cut by more than one transverse sulcus; body mottled or not mottled.................................. 7

7. Pronotal disk with three light-colored longitudinal bands ( Fig. 7b View FIGURE 7 ); body color yellow, black and orange-reddish ( Fig. 2e, f View FIGURE 2 )........................................................................................... D. puelchus View in CoL

- Pronotal disk with one longitudinal band and continuous or discontinuous oblique bands; body color not as the pattern described above............................................................................................... 8

8. Transverse sulci of pronotum slightly deep; epiphallus with lophi perpendicular to the bridge......................... 9

- Transverse sulci of pronotum deep; epiphallus with lophi parallel to the bridge.................................... 13

10. Caudal margin of pronotal disk obtuse-angular; male cerci with acute apex; valves of cingulum narrow at base, with subcircular ( Fig. 10a View FIGURE 10 ) or oblong distal portion ( Fig. 10b View FIGURE 10 ).............................................................. 11

- Caudal margin of pronotal disk nearly straight; male cerci with straight or blunt apex; valves of cingulum subtriangular ( Fig. 10i, j View FIGURE 10 )............................................................................................. 12

11. Body always mottled, general color red or yellow and grey ( Figs. 2c, d View FIGURE 2 , and 6e, f View FIGURE 6 )...................... D. pycnostictus View in CoL

- Body not always mottled; color variable ( Figs. 2a, b View FIGURE 2 , and 6a–c View FIGURE 6 )...................................... D. argentinus View in CoL

12. Body color dark green and yellow, not mottled ( Fig. 2g, h View FIGURE 2 ); tegmina with transverse veins delimiting cells ( Figs. 8k View FIGURE 8 )............................................................................................. D. paraguayensis View in CoL

- Body color red, black mottled ( Figs. 2i, j View FIGURE 2 , and 5e, f View FIGURE 5 ); tegmina with longitudinal veins well-marked, yellow ( Figs. 8l View FIGURE 8 )......................................................................................... D. paranaensis sp. nov.

13. Disk of pronotum with a median longitudinal light-colored band ( Fig. 7b View FIGURE 7 ); tegmina reddish ( Figs. 4g, h View FIGURE 4 , and 8p View FIGURE 8 ); male cerci long, with wide and blunt apex ( Fig. 9a View FIGURE 9 )......................................................... D. porphyreus View in CoL

- Disk of pronotum with a median longitudinal light-colored band and with spots obliquely arranged in the prozona; tegmina of a different color; male cerci shorter, with thinner apex....................................................... 14

14. Tegmina with subcostal and radial veins cream-colored and posterior cubital strong yellow ( Fig. 4e, f View FIGURE 4 )......... D. virgatus View in CoL

- Tegmina with all longitudinal veins of the same color........................................................ 15

15. Body color black and yellow-ocher ( Figs. 4a, b View FIGURE 4 , and 6i View FIGURE 6 ); tegmina with well-delimited cells, without spots or mottles on the transverse veins ( Figs. 4a, b View FIGURE 4 , and 8m View FIGURE 8 ); male cerci short and conical ( Fig. 9a View FIGURE 9 ); valves of cingulum with distal portion expanded, anterior margin straight, upper margin slightly notched ( Fig. 10m View FIGURE 10 )........................................ D. crassus View in CoL

- Body color dark brown ( Figs. 4c, d View FIGURE 4 , and 5h View FIGURE 5 ); tegmina with irregular transverse veins, not delimiting cells, and with spots on transverse veins ( Figs. 4c, d View FIGURE 4 , and 8n View FIGURE 8 ); male cerci longer ( Fig. 9a, b View FIGURE 9 ); valves of cingulum of a C shape ( Fig. 10n View FIGURE 10 ).............................................................................................. D. salvadorii sp. nov.