Diponthus cribratus ( Serville, 1838 )

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 : 48-50

Diponthus cribratus ( Serville, 1838)

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

Acridium cribratum Serville, 1838 [1839]: 648 (Holotype, female, Uruguay, Montevideo, MNHN París). Cyrtacanthacris cribratus: Walker, 1870: 552 , 609. Schistocerca cribratus: Kirby, 1910: 462 ; Berland and Chopard, 1929: 143. Diponthus cribratus: Dirsh, 1965: 43 ; Carbonell et al. 2023; Cigliano et al. 2023. Diponthus clarazianus Pictet & Saussure, 1887 n. syn. Diponthus clarazianus Pictet & Saussure, 1887: 370 (Hololectotype, male, Argentina, “San José, Entre Ríos ”, alolectotype,

female, “Colonia Suiza de San José, Entre Ríos” MHNG); Bruner, 1900: 63; Liebermann, 1939: 187; Hollier, 2011;

Carbonell et al. 2023; Cigliano et al. 2023.

Nomenclatural comments. After the examination of the type specimens of Diponthus cribratus (Serville) and D. clarazianus Pictet & Saussure , and based on the information provided in the original descriptions and on the examined material from the distribution area of the species, we consider both nominal species actually constitute a single specific entity, being D. clarazianus the junior synonym.

Diagnosis. Pronotal disc with a median dorsal longitudinal yellow band; prozona with two oblique yellow bands extending up to the median sulcus; metazona black mottled ( Figs. 3c, d, and 7a, b). Prosternal tubercle laterally compressed, apex directed backwards. Tegmina with irregular transverse veins yellow colored, delimiting large cells with blackish central spots ( Fig. 8e). Hind wings with yellow or tan background, with black spots. Male cerci short, not surpassing the tip of epiproct, slightly down-curved (straight dorsally and with a slight concavity ventrally) ( Fig. 9a). Epiproct subovoidal with acute apex; tubercles on distal half; furculae small ( Fig. 9b). Dorsal valves of aedeagus moderately thin, basal two thirds straight with the apex slightly down-curved ( Fig. 10e). Valves of cingulum placed perpendicular to the dorsal valves of aedeagus (in dorsal view), rod-shaped ( Fig. 11e). Cingulum opened U-shaped; zygoma wide, anterior margin straight with rounded antero-lateral edges ( Fig. 11e). Epiphallus with lophi placed parallel to bridge, widely expanded towards the posterior processes of the lateral plates ( Fig. 12a); superior edges oblique in frontal view ( Fig. 12b).

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

Measurements (in mm). Body length: males: 40.3 (40–41); females: 50.3 (47–53) from fastigium to end of abdomen, 42 (41–43) from fastigium to apex of tegmina. Hind femur length: males: 18 (17–19); females 22.6 (22–24). Tegmina length: males: 26.3 (23–30); females: 28.6 (28–29).

Distribution. This species is found in Argentina (Entre Ríos, Buenos Aires) and Uruguay (Río Negro, Tacuarembó, Montevideo) ( Fig. 13).