Mahanarva (Ipiranga) Fennah, 1968

3.4. 2. Mahanarva (Ipiranga) Fennah, 1968 View in CoL

Mahanarva (Ipiranga) Fennah, 1968: 186 — Type species: Monecphora rubicunda Walker (by original designation). View in CoL

Redescription.

Head subtriangular, vertex and tylus with slightly marked median carina, ocelli closer to each other than to eyes; antenna with pedicel sparsely setose, basal body of flagellum subcylindrical, with a single and short arista shorter than the pedicel length. Postclypeus inflated, with convex profile, longitudinal carina present, lateral grooves slightly marked; rostrum reaching the base of mesocoxae. Pronotum with poorly marked muscular insertions, anterior and anterolateral margin straight, humeral angles acute. Tegmina generally narrow with prominent venation (except in M. (I.) vittata ), vein A 2 distinct (except in M. (I.) vittata ), apical reticulation developed (except in M. (I.) vittata ); hindwings with Cu 1 thickened at the base. Metathoracic femur with small apical spine, tibia with two lateral spines: basal one smaller than the ones located at the apical crown which has 10–14 spines arranged in two rows; basitarsus with two or three rows of spines; subungueal process present. — MALE: Genitalia: Pygofer with one finger-like / rounded process between anal tube and subgenital plate, subgenital plate with acute or rounded apex ( M. (I.) rubicunda , M. (I.) aguirrei and M. (I.) obliqua sp. nov.); dorsal margin of paramere rounded or montain-shaped (some specimens of M. (I.) vittata ), a subapical hook-like spine directed outwards; aedeagus subcylindrical, narrowing towards apex, with a pair of dorsal processes shorter than half shaft length (except for some specimens of M. (I.) vittata , where the dorsal processes are almost the same size of half of shaft length) and inserted between medium and apical third. — FEMALE: Genitalia: First valvula of ovipositor with basal process undeveloped (except for M. (I.) nefasta sp. nov.). Second valvula with dorsal margin covered by teeth in apical third ( M. (I.) vittata has inconspicuous teeth).

Remarks.

Fennah (1968) emphasized that the subgenus distinguishes from Mahanarva primarily by the convex profile of the postclypeus, relatively narrow body shape, and the basal process of the first ovipositor valve being much less developed than in Mahanarva . Additionally, the rostrum reaches only the base of the mesocoxa in Ipiranga ( Paladini and Cavichioli 2014).

Distribution.

Brazil, Paraguay and Argentina.

3.4. 3. Key to species of Mahanarva (Ipiranga)