Relationships and taxonomy of the genus Diponthus Stål (Orthoptera: Acridoidea Romaleidae) Author Pocco, Martina E. Centro de Estudios Parasitológicos y de Vectores (CEPAVE), CONICET - UNLP, La Plata, Argentina & División Entomología, Museo de La Plata - FCNYM-UNLP, La Plata, Argentina Author Lange, Carlos E. Centro de Estudios Parasitológicos y de Vectores (CEPAVE), CONICET - UNLP, La Plata, Argentina & Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CICPBA), Argentina Author Cigliano, María Marta Centro de Estudios Parasitológicos y de Vectores (CEPAVE), CONICET - UNLP, La Plata, Argentina & División Entomología, Museo de La Plata - FCNYM-UNLP, La Plata, Argentina text Zootaxa 2023 2023-08-21 5336 1 33 81 http://dx.doi.org/10.11646/zootaxa.5336.1.2 journal article 10.11646/zootaxa.5336.1.2 1175-5326 8268533 F31F6A72-21B8-455D-8E64-3CE59613599C Diponthus porphyreus (Gerstaecker, 1873) Redescription. Medium-sized insects ( Fig. 4g , h ). Male: fastigium excavated, apex slightly concave. Interocular distance as or slightly wider than the apex of fastigium. Eyes prominent, sub-circular, exceeding the level of vertex in lateral view. Frons oblique; union frons-fastigium rounded. Antennae very long. Mid-dorsal longitudinal carina obsolete, cut by three well-marked and deep transverse sulci. Anterior margin of pronotum emarginate, posterior margin of disc angulate, lateral edges of metazona disc elevated. Integument of prozona strongly rugose on dorsum; faveolated on sides; metazona reticulate. Meso and metapleuras strongly rugose, tending to reticulate. Prosternal tubercle straight, with rounded apex. Metazona slightly longer than prozona. Tegmina and hind wings reaching the end of abdomen, or just exceeding it. Tegmina with transverse veins delimiting irregular cells. Anterior and middle legs with robust femora and tibiae. Hind femur thin. Cerci long, with wide and blunt apex, slightly incurved, widely surpassing the tip of epiproct. Epiproct oval, with pointed tip and tubercles on distal half; furculae lobed, with pointed apex. Phallic complex ( Figs. 10p , 11p , and 12a, b ): dorsal valves of aedeagus short and wide. Valves of cingulum similar to D. salvadorii sp. nov. with less expanded distal portion. Epiphallus with small lophi, parallel to the bridge, with acute apex, extended but without reaching the posterior processes of lateral plates. Chromatic characters. Body color greenish brown with tan color ( Fig. 4g , h ). Head greenish-brown, with a wide mid-dorsal light brown band. Antennae purple, escape and pedicel greenish. Pronotum greenish brown, sometimes with light burgundy tints, with a wide mid-dorsal light brown band, delimited by thin dark brown bands ( Fig. 7a, b ). Meso and metapleurae greenish brown. Tegmina light burgundy with discal area yellow and dark veins ( Fig. 8p ). Hind wings with remigium light burgundy and anal area hyaline to very light green. Anterior and middle legs tan colored. Hind femur tan with a thin longitudinal band dark burgundy on the outer face; inner face dark burgundy except for the apical tip which is tan. Hind tibiae with outer surface tan colored and inner burgundy. Abdomen tan colored; subgenital plate and epiproct tan colored with the tips of cerci and furculae, and tubercles black colored. Females. Similar to males but more robust. Material examined. BRAZIL : 1 male and 1 female , Corupá ( Hansa Humbolt ), Santa Catarina , 01/1946, A. Maller , Frank Johnson leg., MLP ; 1 male and 1 female , Corupá ( Hansa Humbolt ), Santa Catarina , 11/1944, A. Maller , Frank Johnson leg., MLP ; 1 female , Corupá ( Hansa Humbolt ), Santa Catarina , 01/1945, A. Maller , Frank Johnson leg., MLP ; 1 female , Corupá ( Hansa Humbolt ), Santa Catarina , 12/1960, A. Maller leg., MNHN ; 1 male , Corupá ( Hansa Humbolt ), Santa Catarina , 01/1962, A. Maller leg., MNHN .