Cloeodes guenoa, Nieto, Carolina & Emmerich, Daniel, 2011

Nieto, Carolina & Emmerich, Daniel, 2011, Three new species of the genus Cloeodes Traver (Ephemeroptera: Baetidae) from Uruguay, Zootaxa 2996, pp. 57-65 : 61-63

publication ID

https://doi.org/ 10.5281/zenodo.205436

DOI

https://doi.org/10.5281/zenodo.6183253

persistent identifier

https://treatment.plazi.org/id/03ADC05D-FFC8-FFF0-FF33-0A6DDDCBFD28

treatment provided by

Plazi

scientific name

Cloeodes guenoa
status

sp. nov.

Cloeodes guenoa   sp. nov.

( Figs. 2 View FIGURES 1 – 3 , 15– 25 View FIGURES 15 – 25 )

Nymph ( Fig. 2 View FIGURES 1 – 3 ). Length: body, 4.9–5.1 mm; cerci, 1.4–1.5 mm; terminal filament, 1.2–1.3 mm. Antennae broken. Head yellowish brown, longer than wide, compound eyes yellowish brown. Antennae pale yellow. Mouthparts ( Figs. 15–20 View FIGURES 15 – 25 ): labrum ( Fig. 15 View FIGURES 15 – 25 a) with one subapical seta centrally and one seta near lateral margin, anterior margin with bifid setae ( Fig. 15 View FIGURES 15 – 25 b). Left mandible ( Fig. 16 View FIGURES 15 – 25 ) without setae between prostheca and mola, thumb of molar area transverse to anterior margin. Right mandible ( Fig. 17 View FIGURES 15 – 25 ) without setae between prostheca and mola. Hypopharynx ( Fig. 18 View FIGURES 15 – 25 ): lingua with rounded projection and longer than superlinguae. Maxillae ( Fig. 19 View FIGURES 15 – 25 ), palpi as long as galealacinia, two segmented, segment II with a constriction. Labium ( Fig. 20 View FIGURES 15 – 25 ) with segment III of palpi rounded.

Thorax pale yellow. Pleura yellowish brown, sterna pale yellow. Legs yellowish brown. Dorsal margin of femora with a row of pointed spines, apically with a subquadrangular projection and two blunt spines ( Fig. 21 View FIGURES 15 – 25 ). Tarsal claws 0.3 times the length of tarsi. Hind wing pads present.

Abdomen yellowish brown ( Fig. 2 View FIGURES 1 – 3 ), segments III-VII with two whitish spots near midline, segments IV and VIII pale brown. Abdominal terga with covers, posterior margin of terga with spines as in Fig. 22 View FIGURES 15 – 25 . Paraprocts with 10–11 spines apically ( Fig. 23 View FIGURES 15 – 25 ). Gills translucent white, main and secondary trachea pigmented ( Fig. 24 View FIGURES 15 – 25 ), 2 times the length of each tergum. Caudal filament yellowish, with flattened setae basally sclerotized (similar to Fig. 14 View FIGURES 4 – 14 b). Cerci with long spines toward external margin every two segments, terminal filament with long spines toward midline every two segments ( Fig. 25 View FIGURES 15 – 25 ).

Adults. Unknown.

Etymology. “ Guenoa   ” is the name of the native people who inhabits the current districts of Treinta y Tres, Cerro Largo and Tacuarembó.

Diagnosis. Cloeodes guenoa   sp. nov. can be distinguished from the other species of the genus by the following combination of characters: 1) hind wing pads present; 2) lingua with rounded projection and longer than superlinguae ( Fig. 18 View FIGURES 15 – 25 ); 3) labium with segment III of palpi rounded ( Fig. 20 View FIGURES 15 – 25 ); 4) dorsal margin of femora with a row of pointed spines, apically with a subquadrangular projection and two blunt spines ( Fig. 21 View FIGURES 15 – 25 ); 5) abdominal color pattern as in Fig. 2 View FIGURES 1 – 3 , with segments III-VII with two whitish spots near midline, segments IV and VIII pale brown.

Material. Holotype female mature nymph, URUGUAY, Tacuarembó, R 5, km 379, Arroyo Tranqueras, S 31 º 47´29 ´´, W 55 º 58´51 ´´, 124m, 22 / 2 / 2008, Emmerich & Molineri colls. Paratypes six nymphs (one dissected) same data as holotype. Three nymphs: Lavalleja, R 8, km 190, Arroyo Tapes Chico, S 33 º 59´18 ´´, W 54 º 46´54 ´´, 130m, 4 / 3 / 2008, Emmerich & Pérez colls. One nymph: Treinta y Tres, Quebrada de los Cuervos, Arroyo Los Helechos, S 32 º 55 ’ 27.3 ’’, W 54 º 27 ’ 34.4 ’’, 125 m. 8 / 11 / 2004, D. Emmerich & E. Morelli colls. Six nymphs: Maldonado, R 109, Cerro Cordillera, Arroyo sin nombre, S 34 º 20 ’ 29.4 ’’, W 54 º 37 ’ 40.5 ’’, 301 m, 23 / 3 / 10, D. Emmerich & C. Molineri colls.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Baetidae

Genus

Cloeodes