Cloeodes dialutoi, 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 : 59-61

publication ID

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

DOI

https://doi.org/10.5281/zenodo.6183251

persistent identifier

https://treatment.plazi.org/id/03ADC05D-FFCE-FFF2-FF33-0C50D95AFB68

treatment provided by

Plazi

scientific name

Cloeodes dialutoi
status

sp. nov.

Cloeodes dialutoi sp. nov.

( Figs. 1 View FIGURES 1 – 3 , 4– 14 View FIGURES 4 – 14 )

Nymph ( Fig. 1 View FIGURES 1 – 3 ). Length: body, 4.6–4.7 mm; cerci, 1.9 –2.0 mm; terminal filament, 1.7–1.8 mm. Antennae broken. Head yellowish brown, longer than wide, compound eyes reddish brown. Antennae pale yellow. Mouthparts ( Figs. 4–9 View FIGURES 4 – 14 ): labrum ( Fig. 4 View FIGURES 4 – 14 ) with one subapical seta centrally, anterior margin with bifid setae (similar to Fig. 15 View FIGURES 15 – 25 b). Left mandible ( Fig. 5 View FIGURES 4 – 14 ) without setae between prostheca and mola, thumb of molar area transverse to anterior margin. Right mandible ( Fig. 6 View FIGURES 4 – 14 ) without setae between prostheca and mola. Hypopharynx ( Fig. 7 View FIGURES 4 – 14 ): lingua with rounded projection and subequal in length to superlinguae. Maxillae ( Fig. 8 View FIGURES 4 – 14 ), palpi as long as galea-lacinia, two segmented, segment II with a constriction. Labium ( Fig. 9 View FIGURES 4 – 14 ) with segment III of palpi rounded.

Thorax yellowish brown. Fore wing pads yellowish. Pleura brownish, sterna pale yellow. Legs pale yellow, femora with median brownish bands, apical margin of tibiae and basal margin of tarsi brownish. Dorsal margin of femora ( Fig. 10 View FIGURES 4 – 14 ) with a row of blunt spines, apically with a subquadrangular projection and two blunt spines. Tarsal claws 0.3 times the length of tarsi. Hind wing pads present.

Abdomen as in Fig. 1 View FIGURES 1 – 3 , segments I, IV, VIII with reddish markings, segments II-III, VI-VII, IX-X brownish, segment V pale brown, segments I-VI with two pale spots near midline. Abdominal terga with covers and some scales (following Kluge, 1997), posterior margin of terga with spines as in Fig. 11 View FIGURES 4 – 14 . Paraprocts ( Fig. 12 View FIGURES 4 – 14 ) with 12–13 spines apically. Gills ( Fig. 13 View FIGURES 4 – 14 ) translucent, trachea pigmented, 2 times the length of each tergum. Caudal filaments pale yellow, except apically brownish, with flattened setae basally sclerotized ( 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. 14 View FIGURES 4 – 14 a).

Adults. Unknown

Etymology. This species is dedicated to William Dialuto, because of him the richness of Rocha's ecosystems is known. His commitment to preservation of the environment is invaluable.

Diagnosis. Cloeodes dialutoi sp. nov. can be distinguished from the other species of the genus by the following combination of characters: 1) hind wing pads present; 2) labium with segment III of palpi rounded ( Fig. 9 View FIGURES 4 – 14 ); 3) dorsal margin of femora with a row of blunt spines, apically with a subquadrangular projection and two blunt spines ( Fig. 10 View FIGURES 4 – 14 ); 4) abdominal color pattern in Fig. 1 View FIGURES 1 – 3 , with segments I, IV, VIII with reddish spots, segments II-III, VI-VII, IX-X brownish, segment V pale brown.

Material. Holotype male mature nymph: URUGUAY, Rocha, Paraje. El Oratorio, Finca Sr. Cabrera, Arroyo Sauce Chico de los Méndez, S 34 º 01´16 ´´, W 53 º 57´32.6 ´´, 121m, 24 / 3 / 2010, Emmerich & Molineri colls. Paratypes: six nymphs (one dissected) same data as holotype. Two 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 / 2010. D. Emmerich & C. Molineri colls.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Baetidae

Genus

Cloeodes