Thraulodes marianoi, Silva & Salles & Pinto, 2020

Silva, Vinícius De Assis, Salles, Frederico Falcão & Pinto, Ângelo Parise, 2020, Thraulodes marianoi sp. nov., a remarkable new species of mayfly (Ephemeroptera Leptophlebiidae) with dark wings from the southern Brazilian Atlantic Forest, Zootaxa 4860 (1), pp. 92-100 : 93

Thraulodes marianoi sp. nov.

( Figs. 3–11 , 13 )

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Material examined. Holotype: Male imago (in alcohol), BRAZIL, Paraná State, Piraquara municipality, Pico do Marumbi State Park , Mananciais da Serra (SANEPAR), Reservatório do Carvalho , 21º29’47”S, 48º58’54”W, 1021 m a.s.l., light sheet, lic. 04/18, 28.XI.2018, A.P. Pinto, B. R. Araujo & A.C. Domahovski leg. ( DZUP 515215 ).

Diagnosis. The new species can be distinguished from the other species of Thraulodes by the combination of the following characteristics: (1) four cross-veins basal to bulla in forewing; (2) brown area covering about of proximal half of the forewing; (3) pleura violet; (4) terga and sterna I–IV white washed with dark brown on posterior and lateral margin terga and sterna V–X dark brown; (5) penes short and wide with distinct lateral area “ear-like” and poorly developed lateral pouch; (6) styliger plate triangular, median projection short and rounded on the apex; (7) middle and posterior femora dark brown with yellowish hypodermal coloration.

Figures

FIGURE 3–5. Thraulodes marianoi sp. nov., holotype male (Brazil. PR: Pico do Marumbi State Park, DZUP 515215): (3) habitus in lateral view; (4) head and thorax in lateral view; (5) head and thorax in dorsal view.

FIGURES 6–8. Thraulodes marianoi sp. nov. holotype male (Brazil. PR: Pico do Marumbi State Park, DZUP 515215): (6) forewing; (7) hindwing, (8) fore-, middle- and hind legs in lateral view.

FIGURES 9–11. Genitalia of Thraulodes marianoi sp. nov. holotype male (Brazil. PR: Pico do Marumbi State Park, DZUP 515215): (9) dorsal view, (10) ventral view and (11) ventrolateral view. Figures 10–11 with the 9th segment removed.

FIGURES 12–13. Outline of male genitalia of Thraulodes species in ventral view: (12) T. basimaculatus holotype (redrawn from Giordano & Domínguez, 2005); (13) T. marianoi holotype.