Thraulodes schlingeri, ": Traver & Edmunds, 1967

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 : 54-55

Group schlingeri

Definition. Penis lobes short, swollen ventrally and greatly widened apically; telopenes in form of spear-like rolls, long, curved and directed medially-ventrally ( Figs 203–204 , 236–239–242 ). In imago and subimago of both sexes, femora once-banded; abdominal tergum VI concolor with tergum VII ( Figs 198–199 , 232–234 ); the same coloration in Th. quevedoensis Flowers 2009 (see below) and Th. cochunaensis Dominguez 1987 . Both species placed to the group schlingeri have the same structure of labrum and larval cuticular coloration (see below). Tergalii have similar shape, but in Th. schlingeri they have side tracheae ( Figs 178–184 ), while in Th. marreroi have not them ( Figs 220–226 ).

Composition. Th. schlingeri Traver & Edmunds 1967 and Th. marreroi Chacon et al. 1999 .

Figures

FIGURES 203–206. Thraulodes schlingeri. 203–204, male imaginal genitalia in lateral and ventral view; 205, larval protogonostyli and protopenis; 206, hind wing.

FIGURES 232–239. Thraulodes marreroi. 232–234, male imago in dorsal, ventral and lateral view; 235, left half of subimaginal exuviae of mesonotum; 236–239, male imaginal genitalia in apical, dorsal ventral and lateral view.

FIGURES 240–245. Thraulodes marreroi. 240, genitalia of male imago in lateral view; 241, apex of penis in dorsal view; 242, genitalia in ventral view; 243, sibimaginal exuviae of styliger, gonostyli and telopenes; 244, larval protogonostyli and protopenis; 245, hind wing.

FIGURES 198–202. Thraulodes schlingeri. 198–199, male imago in lateral and ventral view; 200, penis in apical view; 201, penis in ventral view; 202, left half of subimaginal exuviae of mesonotum.

FIGURES 174–189. Thraulodes schlingeri. 174–184, larval exuviae at the same magnification: 174, head with labrum and mandibles; 175, right pronotum and mesonotum; 176, part of sternum and left pleura with half of metanotum and hind protopteron, left fore, middle and hind legs; 177, abdominal terga and sterna; 178–184, tergalii I–VII; 185, immature larva (with ocher and whitish cuticular coloration and blackish paired hypodermal markings on abdomen); 186, anterior side of hind femur; 187, anterior side of fore tibia; 188, hind tibia with focus on outer-posterior row of stout setae; 189, the same with focus on outeranterior and inner-anterior rows of stout setae.

FIGURES 208–231. Thraulodes marreroi. 208, margin of labrum with focus on posterior transverse setal row; 209, the same with focus on anterior transverse setal row (represented by field of irregularly situated setae) (arrows show four sensilla separating three denticles). 210–215 and 216–219, larval exuviae of two different specimens at the same magnification; 220–226, tergalii I–VII; 227, immature larva (with ocher and whitish cuticular coloration and blackish paired hypodermal markings on abdomen); 228, anterior side of hind femur; 229, anterior side of fore tibia; 230, hind tibia with focus on outer-posterior row of stout setae; 231, the same with focus on outer-anterior and inner-anterior rows of stout setae.