Hagenulopsis esmeralda, Dominguez, Molineri & Bersoza, 2009

Domínguez, Eduardo, Molineri, Carlos & Mariano, Rodolfo, 2009, Revision of the South American species of Hagenulopsis Ulmer and Askola Peters (Ephemeroptera: Leptophlebiidae) with description of six new species, Zootaxa 2142 (1), pp. 29-44 : 40-41

Hagenulopsis esmeralda sp. nov. Domínguez, Molineri & Bersoza

Male imago ( Fig. 16 ). Length: body, 4.8–5.2 mm; fore wings, 4.8–5.0 mm. Eyes: upper and lower portions black, meeting dorsally, in frontal view the eyes are contiguous except small basal and medio-apical openings; facets small and numerous. Head yellowish washed with black diffusely. Ocelli whitish, lateral ocelli twice the size of the median one. Antennae: scape yellowish white, pedicel brownish, flagellum yellowish lighter toward apex. Thorax. Pronotum yellowish white heavily washed with black except central area and two Cshaped submdian marks on posterior margin lighter; mesonotum orangish yellow with sutures and carinae darker, metanotum yellowish white with posterior and lateral margins washed with black; pleurae sclerites yellowish orange, membranes whitish heavily washed with black; sterna yellowish orange except central portions whitish. Legs yellowish white with brownish spot at apex of femora, hooked claw of a pair orange blunt claw grayish. Wings membrane hyaline except basal to costal brace brownish, veins yellowish brown, crossveins whitish, pterostigma clouded white ( Fig. 38 ); bullae (better distinguishable in alcohol specimens) present on Sc, R 1, R 4+5 and MP 1 about ½ from base; 4 costal cross veins from bulla to costal brace. Abdomen. Terga II–VI translucent white with black posterolateral angles; tergum VII whitish with sublateral circular areas and posterolateral angles washed with black; terga VIII–IX whitish heavily washed with black except narrow medial line; tergum X whitish with blackish anterolateral corners; abdominal sterna whitish. Genitalia ( Figs. 41–42 ): whitish except basal articulation of forceps and posterior margin of styliger plate orangeish and penes light orange; long styliger plate (ratio maximum width/medial length: 1.66–1.95) wider at base becoming thinner toward apex, hind margin markedly concave; first forceps segment long and straight (ratio length forceps I/styliger plate: 3) ( Fig. 41 ). Caudal filaments translucent white with black annulations, narrow near base of filaments and widening towards apex.

Female imago. Length: body, 5.0– 5.5 mm; fore wings, 5.3–5.5 mm. Eyes black. Head yellowish white with two dark stripes between lateral ocelli and posterior margin. Antennae scape and pedicel yellowish washed with black, flagellum grayish lighter towards apex. Thorax. Pronotum whitish heavily washed with black; mesonotum yellowish orange margins darker; pleurael sclerites yellowish orange slightly washed with black, membranes whitish heavily washed with black; sterna yellowish except central parts whitish. Legs coxae and trochanter yellowish orange washed with black on coxae, femora whitish with black subapical band, tibiae and tarsi yellowish white, claws grayish. Wings. Membrane hyaline basally brown as in male, longitudinal and crossveins brownish, bullae as in male. Abdomen. Terga whitish, heavily washed with black from I to IX, except median area of tergum VII, and a pair of submedial dots on anterior margin of terga II–VII paler; sterna whitish except posterior margin of sternum VI and egg guide brownish, egg guide apically acute. Caudal filaments light yellowish brown with annulations as in male.

Material. Holotype male from ECUADOR: Esmeralda Prov., Canton Eloy Alfaro, Parroquia Telembí, Estero Arenales, N 0º 40' 06", W 78º 69' 26", 40 m, 15-IV-2002, E. Domínguez, F. Bersoza, M.C. Zuñiga coll. Allotype, and paratypes (42 males, 5 females) same data as Holotype; 6 male and 1 female imagos (paratypes) from ECUADOR: Esmeralda Prov., Canton Eloy Alfaro, Parroquia Telembí, Comunidad San Miguel, Estero Charco Vicente, N 0º 41' 36", W 78º 54' 33", 80 m, 14-IV-2002, E. Domínguez, F. Bersoza, M.C. Zuñiga coll. Imagos of both sexes were captured in the same nuptial flight . Holotype, Allotype and half of the partatypes deposited in MECN, rest of paratypes divided equally between IFML and MUSENUV .

Etymology: Esmeralda, from the name of the Ecuadorean province where the species was collected.

Discussion: Hagenulopsis esmeralda sp. nov. can be separated from the other species of the genus by the following combination of characters. Imago: 1) general coloration light, with abdominal segments II–VI translucent white, with black posterolateral angles ( Figs. 16–18 ); 2) eyes of male meeting on dorsum of head ( Figs. 17–18 ); 3) first forceps segment long (3 times length of styliger plate), and straight ( Fig. 42 ); 4) hind femora yellowish white with brownish spot at apex; 5) cerci translucent white with black annulations, narrow near base of filaments and widening towards apex.

Figures

FIGURES 13–18. Hagenulopsis. Figs 13–15, H. zunigae sp. nov. 13, male imago, general aspect, lateral view; 14, head, dorsal view; 15, head, lateral view. Figs 16–18, H. esmeralda sp. nov. 16, male imago, general aspect, lateral view; 17, head, dorsal view; 18, head, lateral view.

FIGURES 37–47. Hagenulopsis. Figs 37–39, male fore wing: 37, H. zunigae sp. nov.; 38, H. esmeralda sp. nov.; 39, H. lipeo. Fig. 40, H. zunigae sp. nov., genitalia, ventral view. Figs 41–42, H. esmeralda sp. nov.: 41, genitalia, ventral view; 42, penes, detail. Figs 43–46, H. lipeo: 43, genitalia, ventral view; 44, penes, detail; 45, apex of styliger plate, ventral view; 46, idem, variation. Fig. 47, H. diptera, male head, dorsal view.