Thraulodes sinuosus, Mariano & Flowers (in Mariano, Flowers & Froehlich, 2011

Kluge, Nikita J., 2020, Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species, Zootaxa 4756 (1), pp. 1-142 : 22

Group sinuosus

Definition. Penis lobes small and extremely simplified, without apical widening; telopenes unusually short, unrolled and bent ventrally-proximally ( Figs 33 , 38, 40 , 54–55 , 60 ). In imago of both sexes, ventral side of pterothorax mostly ocher, with transverse orange band crossing anterior part of mesothoracic episterna and basisternum; abdominal sternum I brown, contrastingly darker than thoracic sterna and remainder abdominal sterna ( Figs 27 , 53, 57 ); femora with one multicolored apical band; in male, abdominal terga II–VI whitish, terga VII–X orange ( Figs 25 , 52 ) (the same coloration of legs and male abdomen in many other species).

Composition. Th. ludmilae sp. n. and Th. sinuosus Mariano & Flowers 2011 .

Figures

FIGURES 25–34. Thraulodes ludmilae sp. n.: 25, 27, male imago; 26, apex of fore wing; 28–30, fore, middle and hind legs of male imago; 31, subimaginal exuviae of hind leg; 32, costal margin of fore wing (arrows show proximal costal cross veins); 33, genitalia of male imago; 34, left half of subimaginal exuviae of mesonotum (25–26, 28–34, holotype).

FIGURES 35–41. Thraulodes ludmilae sp. n.: 35, genitalia of male imago in ventral view; 36, subimaginal exuviae of styliger and gonostyli at the same magnification; 37, larval exuviae of protogonostyli and protopenis at the same magnification; 38, imaginal styliger and penis enlarged; 39, subimaginal exuviae of penis at the same magnification; 40, genitalia of male imago in lateral view; 41, hind wing (35–39, 41, holotype). Abbreviations: bl, basal lobe; gr, groove of telopenis; dp, dorsal projection of styliger; m-v.r, medio-ventral ridge (recurved flap); tp, telopenis.

FIGURES 52–59. Thraulodes sinuosus. 52–53, male imago in dorsal and ventral view; 54, genitalia of male imago with focus on gonostyli; 55, the same, with focus on penis; 56, right half of subimaginal exuviae of mesonotum; 57–58, female imago in ventral and lateral view; 59, pterostigma of fore wing.

FIGURES 60–63. Thraulodes sinuosus. 60, genitalia of male imago in ventral view; 61, their subimaginal exuviae at the same magnification; 62, larval exuviae of protogonostyli and protopenis at the same magnification; 63, hind wing.