Miroculis (Miroculis) mocidade, Boldrini, 2017

Boldrini, R., 2017, Three new species of Miroculis from the Serra da Mocidade National Park, Roraima State, Brazil, with new records and checklist of the Leptophlebiidae (Ephemeroptera), Zootaxa 4317 (3), pp. 573-583 : 575-577

Miroculis (Miroculis) mocidade sp. nov. Raimundi, Boldrini & Nascimento

( Figs. 6–10 )

Diagnosis. Miroculis (Miroculis) mocidade sp. nov. differs from the other species of Miroculis by the following characteristics in the male imago: 1) distomedial projection of compound eyes absent; 2) forewing with distal region washed with brown, hind wing with a tiny brownish spot on the base ( Fig. 8 ); 3) forewing with vein A1 connected to A2; 4) forceps washed with brown; 5) forceps segment I with inner basal third narrowing abruptly, and inner subapical portion well broadened ( Fig. 9 ); 6) penis broad basally, narrowing gradually toward apex; apex rounded ( Fig. 10 ).

Description. Measurements (mm). Male imago. Body: 6.0; forewing: 5.0, angularity of cubital region 98°; hind wing: 1.2. Fore leg: broken off and missing, except for coxa, trochanter, femora and tibiae; mid leg: 2.7; hind leg: broken off and missing. Caudal filament: 11.7.

Ratios. Wings: Forewing width 0.5 x forewing length; hind wing length 0.3 x forewing length; hind wing width 0.5 hind wing length; fork on MA of forewing 0.5 x total length of MA. Genitalia: medial length of styliger plate 0.4 x maximum width of styliger plate; lateral length of styliger plate 1.2 x medial length of styliger plate; lateral length of styliger plate 0.7 x lateral length of segment IX. Forceps segment III 0.9 x segment II; segment III 0.4 x segment I; segment II 0.5 x segment I; penis length 1.2 x forceps segment I.

Coloration ( Figs. 6–9 ). Body: brownish. Head. Brown. Compound eye with stalk orange, lighter toward apex; facets of upper portion orange, separated by brown grooves. Antenna: scape and pedicel brown, flagellum light brown. Thorax: brown, darker on margins. Wings ( Figs. 7–8 ): forewings with hyaline membrane, distal region washed with brown, cross veins surrounded by small brown areas. Hind wing with hyaline membrane with a tiny brownish cloud on the base. Legs: pale; fore leg with femur and tibia washed with light brown, apex of femur with a brown band; mid leg with a brown band on apex; hind leg with a brown stripe on mid region and a brown band on apex. Abdomen: whitish washed with light brown, segments VIII–X washed with brown. Genitalia ( Fig. 9 ): whitish washed with brown. Penis washed with dark brown. Caudal filament: whitish washed with light brown, lighter toward apex.

Morphology: Head: posterior margin V-shaped. Compound eye with upper portion on a short stalk (0.5 x longer than wide); distomedial projection of compound eyes absent; dorsal surface elliptic, with ten facets in the longest row. Lower portion of compound eye elliptic. Wings: forewing with five cross veins between C and Sc basal to bulla; 14–17 cross veins between C and Sc; IMP free basally; MP2 not or weakly connected to base of MP1 by cross vein; CuA connected to CuP by a cross vein subbasally; CuP and A1 connected by a cross vein subbasally; A1 connected to A2. Hind wing with apex slightly acute; fork of R+MA symmetrical; CuP present. Genitalia: Styliger plate with posteromedial margin concave. Forceps segment I with basal third broad tapering abruptly toward apex, and inner margin with subdistomedial portion broadened; inner and outer margins undulated. Penis broad narrowing gradually toward apex; apex rounded ( Fig. 10 ); a row of spines on base of inner margin absent.

Etymology: The specific epithet of the new species derives from the locality where the imagos were collected: Serra da Mocidade National Park.

Distribution: Brazil: Roraima State.

Material examined: Holotype: male imago, BRAZIL, Roraima State, Caracaraí municipality, Serra da Mocidade National Park , 01°42"N / 61°27'W, 25.i–06.ii.2016, Mahlmann, T. col. ( CZNC) . Paratypes: one male imago, BRAZIL, Roraima State, Caracaraí municipality, Serra da Mocidade National Park , 01°42"N / 061°47'W, 25.i–06.ii.2016, Oliveira, M., Mahlmann, T. and Xavier, F.F. col. ( UFRR) ; two male imagos, same data as holotype, except by 01°42’17.3”N / 061°47’14.1”W, 01–02.ii.2016, Nascimento, J.M.C. ( INPA) .

Comments. Miroculis (Miroculis) mocidade sp. nov. and Miroculis (Miroculis) fittkaui Savage & Peters, 1983 share a hyaline forewing which is pigmented in some parts of membrane especially around cross veins; and forceps segment I with subdistomedial broadened ( Fig. 9 ). However, M. (M.) mocidade sp. nov. differs from M. (M.) fittkaui by displaying the hind wing with a tiny dark mark only in the base ( Fig. 8 ) while in M. (M.) fittkaui the dark mark is in the base and the apex; by the forceps pigmented and pale in the inner margin of apical 2/3 of forceps segment I ( Fig. 9 ), while M. (M.) fittkaui has only apex of forceps segment I; and by the shape of forceps segment I, M. (M.) mocidade has a short subdistomedial projection, with 1/ 4x length of forceps segment I, while M. (M.) fittkaui has a large subdistomedial projection, with 2/ 3x length of forceps segment I.

Figures

FIGURES 6 – 10. Male imago of Miroculis (Miroculis) mocidade sp. nov.: 6) habituS, lateral view; 7) forewing; 8) hind wing; 9) genitalia; 10) apex of peniS, detail.