Mahanarva (Ipiranga) aguirrei

3.4. 7.Mahanarva(Ipiranga)aguirrei(Berg, 1879) Figures 6 D, 10 A – I Tomaspis aguirrei Berg, 1879 c: 216. Metcalf 1961: 85 Mahanarva (Ipiranga) aguirrei: Fennah 1968: 187 Measurements male. Head length: 1.24; head width: 2.31; pronotum length: 2, 13; pronotum width: 3.43; tegmen length: 9; tegmen width: 2.7; total length: 11.47 (in mm). Diagnosis. Tegmina black or brownish with one thin transverse band whitish between basal and median third and an incomplete band between median and apical third; subgenital plate with excavation on the basal third, rounded apex, paramere apex subquadrangular, spine long and slender with an acute apex. Redescription. Head black, vertex subretangular with a slightly marked median carina, ocelli closer to each other than to eyes, separated by about one diameter from each other; tylus subretangular, black, with a slightly marked carina on the basal third, becoming indistinct towards the apex (Fig. 10 A); antenna black, pedicel sparsely setose; basal body of flagellum subcylindrical with a single and short arista shorter than the pedicel length. Postclypeus black, inflated, with convex profile, longitudinal carina present, lateral grooves slightly marked (Fig. 10 B, C); rostrum with second segment centrally yellowish and laterally black and third segment black, reaching the base of mesocoxae. Pronotum black, hexagonal, with muscular insertions slightly apparent, median carina slightly marked; anterior and anterolateral margins straight; posterolateral with slight sinuosity and posterior margin medially grooved; scutellum black, with slight central concavity and slightly marked horizontal grooves. Tegmina (Fig. 10 A, B) black or brownish, narrow, with one transverse band whitish between basal and median third and an incomplete band between median and apical third resembling two rounded spots; veins M and Cu 1 united at base, veins A 1 and A 2 distincts, apical reticulation developed, prominent venation. Hindwings hyaline, with brownish venation, Cu 1 thickened at the base, hamuli with three or four spines. Legs black or brownish, metathoracic femur with an apical spine; tibia with two lateral spines, basal one smaller than the ones located at apical crown, which has 14 spines arranged in two rows; basitarsus with three rows of spines covered by long setae; subungueal process present. — MALE: Genitalia: Pygofer (Fig. 10 D, E) with one finger-like process between anal tube and subgenital plate; subgenital plate long, with rounded apex; basal process short and rounded followed by an excavation, dorsal margin covered with small tooth-like spines. Paramere (Fig. 10 F) subretangular, dorsal margin rounded and developed, apex subquadrangular, subapical hook-like spine slender bearing small denticles in the inferior margin, with an acute apex directed outwards and forward. Aedeagus (Fig. 10 G – I) subcylindrical, narrowing towards apex with a pair of straight dorsal processes, shorter than half the length of the shaft and inserted between middle and apical third of aedeagus. — FEMALE: specimens unknown. Remarks. This species shows similarities to M. (I.) nefasta sp. nov. mainly due to the pattern and coloration of the tegmina, but presents some unique characters: a rounded subgenital plate apex, a subquadrangular paramere apex, and a slender, acute paramere spine. This species is registered for the first time in Brazil. Distribution. Brazil ([new record] Paraná), Paraguay. Material examined. BRASIL, Paraná: Umuarama, 5–10.x.1980, A. Yamamoto leg., 1 ♂ (MCTP); S. J. dos Pinhais, 25°36′18″S 49°11′37″W, 880 m, 01–31.xii.2020, Malaise, A. C. Domahovski leg., 1 ♂ (DZUP); idem: 01–31.i.2020, A. C. Domahovski leg., 1 ♂ (DZUP). PARAGUAY, Canindeyú: Reserva Natural del Bosque Mbaracayu, Jejui-mi, Mal. 3, 29.iii–09.iv.1996, A. C. F Costa leg., 1 ♂ (DZUP).