Mahanarva (Ipiranga) aguirrei ( Berg, 1879 )

3.4. 7. Mahanarva (Ipiranga) aguirrei ( Berg, 1879) View in CoL

Figures 6 D View Figure 6 , 10 A – I View Figure 10

Tomaspis aguirrei Berg, 1879 c: 216. Metcalf 1961: 85 View in CoL

Mahanarva (Ipiranga) aguirrei View in CoL : 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 View Figure 10 ); 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 View Figure 10 ); 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 View Figure 10 ) 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 View Figure 10 ) 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 View Figure 10 ) 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 View Figure 10 ) 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) GoogleMaps ; idem: 01–31.i.2020, A. C. Domahovski leg., 1 ♂ ( DZUP) GoogleMaps . PARAGUAY, Canindeyú: Reserva Natural del Bosque Mbaracayu, Jejui-mi, Mal. 3 , 29.iii–09.iv.1996, A. C. F Costa leg., 1 ♂ ( DZUP) .