Paramaka takari Salles, Domínguez, Boldrini & Clavier, 2025

Salles, F. F., Domínguez, E., Mariano, R., Boldrini, R., Clavier, S. & Lima, L. R. C., 2025, A review of Paramaka Savage & Peters, 1992 (Ephemeroptera: Leptophlebiidae) with the description of two new species, Zootaxa 5590 (3), pp. 401-421 : 411-415

Paramaka takari Salles, Domínguez, Boldrini & Clavier sp. nov.

( Figures 6 , 7A–H , 8A–D )

Paramaka sp. Lima et al., 2016: 217; Orlando et al., 2021: 45 ; Raymundo et al., 2021: 4.

Paramaka pearljam Faria et al., 2023: 5 (misidentification)

Diagnosis. Male imago: 1) abdominal color pattern contrasting (segments I and VII or VIII to X darker, II to VI or VII translucent white); 2) black medial marks on terga restricted to the anterior ½ (posterior segments) to ¼ (anterior segments); 3) legs yellowish-white, except for apical black band on femora; 4) posteromedial projection of styliger plate large and slightly curved at apex; 5) telopenis not sclerotized.

Description of male imago (in alcohol). Lengths: body, 5.5–5.7 mm; fore wings: 5.9–6.2 mm; hind wings: 0.9–1.0 mm.

Head ( Figs. 7A–B ): yellowish-brown, upper portions of eyes orange-brown, lower portions blackish. Eyes meeting on meson of the head. Ocelli white surrounded with black. Antennae: scape yellowish washed with black basally, pedicel, and flagelum whitish.

Thorax ( Figs. 7A–B )): pronotum yellowish with medial and submedial blackish line; mesonotum orangish with lighter sutures, posterior margin of mesoscutum and anterior portion of area between posteroscutellar protuberance, and posterior margin of mesoscutellum washed with black. Metanotum yellowish with central area and base of hind wing articulation blackish. Pleurae yellowish and heavily washed with black. Prosternum with straight, short and narrow medial carina, similar to P. convexa . Mesosternum yellowish-brown with carina darker. Membranous areas between pro- and mesosternum purplish-gray. Metasternum yellowish slightly washed with gray. Wings ( Figs. 8A– B ): membrane of fore and hind wings hyaline, slightly tinged with brown at bases. Fore wing with C, Sc, R1, and RS yellowish lighter towards apex and posterior margin, remaining veins whitish. Fork of MA asymmetrical and fork of MP slightly asymmetrical (MP2 connected directly to MP1); crossvein above MA slanted; vein ICu 1 connected to CuA basally, vein ICu 2 attached at base to ICu 1 by crossvein. Legs: coxae purplish-grey, trochanters and femora whitish, apex of femora with apical grayish brown band, tibiae and tarsi yellowish-brown, claws lighter than tarsi.

Abdomen ( Figs. 7C–D, G–H ): terga I translucent heavily washed with purplish-grey, terga II–VI translucent white, terga VII–X orange heavily washed with with purplish-grey; terga III–VIII with greyish medial stripe, anterolateral spot and midway lighter mark; posterior margin of terga II–X and posterolateral corner of terga III– VIII heavily washed with grey; sterna translucent white, except for lateral brownish dots on segments VII and VIII. Genitalia ( Figs. 7E–F , 8C–D ): styliger plate whitish, medially with longitudinal stripe formed by brownish dots; penes white, ventral lobe slightly tinged with brownish dots; forceps white. Styliger plate medially with conspicuous large yellowish-brown projection slightly curved at apex. Penes with small ventrolateral lobe and dorsal main lobe, both poorly sclerotized and ventrally covered by a thin membrane Caudal filaments white, washed with grey except at base.

Female imago and nymph: unknown.

Material examined. HOLOTYPE: male imago. BRAZIL, RORAIMA, Boa Vista, Rio Cauamé , 02°52'06"N 60°44'24"W, 02–03.ii.2007, Falcão, J. col. ( INPA).

PARATYPES: 4 male imagos, same data as holotype ( UFVB) ; 2 male imagos, same data as holotype, except 17.iii.2014, Salles, F.F., Domínguez, E., Boldrini, R., Gama-Neto, J. cols. ( UFVB) ; 2 male imagos, one with wings and genitalia on a slide, same data as holotype, except for 08.ii.2007 ( UFVB) ; BRAZIL, AMAZONAS, Apuí, Rio Juma , 07°11'17"S 59°54'31"W, Pennsylvania light trap, 20/i/2023, Abadia, Silva e Bezerra cols ., 17 male subimagos ( UFVB) ; BRAZIL, PIAUÍ, Castelo do Piauí, Riacho Cais , 05°11'45"S 42°15'34"W, 389 m alt., light trap, 09.vi.2023, L.R.C. Lima, A.S. Carvalho, A.P.J. Faria cols ., 20 male imagos ( CEHJ) ; FRENCH GUIANA, Sinnamary River, Saut Takari Tante , 04°37'19"N 52°55'38" W, 35m, 01–04-xi-2016, E. Domínguez, S. Clavier cols ., 15 male imagos, 1 male subimago (half in MNHN, and half in IBN) .

Etymology. The specific epithet ‘takari’ is a noun in apposition, derived from the indigenous name for the canoe pole used in the region where part of the type material was collected.

Distribution. FRENCH GUIANA and BRAZIL (Amazonas, Bahia, Mato Grosso, Piauí, Roraima, and Tocantins).

Comments. The male imago of Paramaka takari sp. nov. can be readily distinguished from the other species of the genus, except for P. pearljam , by the large size of the posteromedial projection of the styliger plate and the membranous nature of the telopenes. However, both species can be distinguished based on the shape of this projection, which is straight to slightly curved at apex in the new species, but ventrally curved at the apex in P. pearljam . The abdominal color pattern is also distinct in both species. In P. pearljam , the tergal marks are much more extended and diffuse, with a continuous black medial line on the terga, whereas in P. takari sp. nov. the medial marks are restricted to the anterior ½ (posterior segments) to ¼ (anterior segments).

Figures

FIGURE 6. Paramaka spp., habitus of living male imago: A) P. takari sp. nov. from type-locality; B) P. incognita from Roraima, Brazil.

FIGURE 7. Paramaka takari sp. nov., male imago (A to F, material from type-locality): A) head and thorax, dorsal view; B) idem, lateral view; C) abdomen, dorsal view; D) idem, lateral view; E) genitalia, ventral view; F) idem, lateral view; G and H) abdomen, dorsal view, variations in coloration (material from French Guiana).

FIGURE 8. Paramaka takari sp. nov., male imago: A) fore wing; B) hind wing; C) schematic representation of male genitalia mounted on slide; D) idem, detail of penis lobe.