Cloeodes aiuruoca Massariol, Angeli & Salles

Salles, F. F., Massariol, F. C., Angeli, K. B., Lima, M. M., Gattolliat, L. & Sartori, M., 2015, Revealing the diversity of Cloeodes Traver, 1938 (Ephemeroptera: Baetidae) in the Neotropics: description of eleven new species from Brazilian mountain ranges, Zootaxa 4020 (1), pp. 1-50 : 3-4

publication ID

https://dx.doi.org/10.11646/zootaxa.4020.1.1

publication LSID

lsid:zoobank.org:pub:482D28F2-0A2B-4B3B-980F-DFCC7C3EE772

DOI

https://doi.org/10.5281/zenodo.6100690

persistent identifier

https://treatment.plazi.org/id/0A16878E-FFAC-FFC5-FF3E-FA17ED21EA8A

treatment provided by

Plazi

scientific name

Cloeodes aiuruoca Massariol, Angeli & Salles
status

sp. nov.

Cloeodes aiuruoca Massariol, Angeli & Salles , sp. nov.

Figures 1 View FIGURE 1 a, 4 a, 6, 7, 30, 31c.

Diagnosis. NYMPH. A) Large body size (> 7.0 mm); B) Body color pattern predominantly uniform ( Figs. 1 View FIGURE 1 a, 4 a); C) Labrum, medially, with two long setae ( Fig. 6 View FIGURE 6 a); D) Maxillary palp short (around ¾ length of galea-lacinia, Fig. 6 View FIGURE 6 g); E) Inner margin of labial palp segment III distinctly shorter than outer margin ( Fig. 6 View FIGURE 6 i); F) Distal projection of fore femur long (distinctly exceeding apex of femur, Figs. 7 View FIGURE 7 a, 7 d); G) Gills with medial rib ( Fig. 7 View FIGURE 7 h).

Nymph. Lengths. Body: 7.0–10.0 mm; cerci: 3.0– 4.5 mm; terminal filament: 3.0– 4.5 mm; antenna: 2.0– 2.5 mm.

Coloration ( Figs. 1 View FIGURE 1 a, 4 a). General coloration yellowish-white washed with brown. Head light brown with light yellow narrow longitudinal stripe on whole length of vertex; frons with area between antennal sockets yellowish. Thorax yellowish brown with brownish marks. Fore leg with coxa brown; trochanter yellowish-brown; femur yellowish washed with brown, except at base and apex of anterior surface; tibia and tarsus brown. Abdomen yellowish-brown washed with brown to dark brown with one lighter medial longitudinal stripe; segments II–VIII with yellowish smooth antero-sublateral area; segments VIII and IX eventually lighter. Sterna yellowish-brown. Caudal filaments brown with a yellowish band subdistally.

Head. Labrum ( Figs. 6 View FIGURE 6 a, 6 b). Length about 0.9 × maximum width; dorsal arc with two medial setae; ventrally with 7–9 spine-like setae near lateral margin.

Hypopharynx as in Fig. 6 View FIGURE 6 c.

Mandibles ( Figs. 6 View FIGURE 6 d, 6 e). Margin between prostheca and mola of left mandible with short spine-like setae ( Fig. 6 View FIGURE 6 f); denticles of mola constricted at base ( Fig. 6 View FIGURE 6 f).

Maxilla ( Fig. 6 View FIGURE 6 g). Medially with 1 spine-like seta + 8 apically pointed setae. Maxillary palp short (around ¾ length of galea-lacinia); palp segment II equal to length of segment I.

Labium ( Figs. 6 View FIGURE 6 h, 6 i, 6 j). Base of glossa expanded (reaching at least half of paraglossa); inner and outer margin respectively with around 20 (ir in Fig. 6 View FIGURE 6 j) and 15 (or in Fig. 6 View FIGURE 6 j) pointed setae increasing in length apically; ventral surface scattered with few short setae at base. Paraglossa dorsally with arc of 4 setae close to inner margin (dia in Fig. 6 View FIGURE 6 j); ventrally with arc of 8–10 setae close to inner margin (via in Fig. 6 View FIGURE 6 j). Labial palp with segment I 0.9 × length of segments II and III combined; segment II dorsally with oblique row of 8 setae; segment III with distal margin slightly truncate; inner margin distinctly shorter than outer margin; ventrally covered with around 20 long setae; setae on inner margin serrate.

Thorax. Hind wing pad. Present.

Fore leg ( Fig. 7 View FIGURE 7 d). Ratio 1.7: 1 (0.8mm): 1: 0.2. Femur. Length about 4.5 × maximum width; outer margin with row of 6–11 clavate setae ( Fig. 7 View FIGURE 7 e); submarginal setae absent; anterior surface and inner margin with around 25 spine-like setae; posterior surface with around 15 scattered setae near inner margin; distal projection exceeding apex of femur ( Fig. 7 View FIGURE 7 a), 0.4 × width of femur, apically with 3 clavate setae. Tibia. Outer margin with few simple setae; inner margin with two serrate setae on apex; subtending bristle blunt, clavate, extending apex of tibia ( Fig. 7 View FIGURE 7 f). Tarsus. Inner margin with row of 12–17 + 1 spine-like short setae. Tarsal claw. 0.2 × length of tarsus.

Mid and hind legs ( Figs. 7 View FIGURE 7 b, 7 c). Similar to fore leg, except for subapical projections of femur less developed and type of setae on inner apex of tibia on (simple instead of serrate).

Abdomen. Terga ( Fig. 7 View FIGURE 7 g). Spines present on posterior margins of segments III–X; larger spines on posterior margin of tergum IV 3.2 × longer than wide.

Sterna . Spines present on posterior margin of segments IV–IX (segment III rarely with scarce spines).

Gills ( Figs. 7 View FIGURE 7 h, 7 i). Outer margin serrated on distal 1 / 4; inner margin slightly serrated; medial rib present; few secondary tracheae extending from main trunk to inner and outer margins. Gill I about 3 / 4 length of segment II; truncate. Gill IV 1 1 / 2 length of segment V, asymmetric, broad at middle. Gill VII about 1 1 / 2 length of segment VIII.

Paraproct ( Fig. 7 View FIGURE 7 j). With 12–14 marginal spines.

Cercus . Without large spines.

Terminal filament. Without large spines.

Male and female imago. Unknown.

Etymology. After the type-locality, River Aiuruoca .

Distribution. Southeastern Brazil, Minas Gerais State, Serra da Mantiqueira, Parque Nacional de Itatiaia ( Fig. 30 View FIGURE 30 ).

Type-material. HOLOTYPE. Nymph (on a single slide), BRAZIL, Minas Gerais, Itamonte, Rio Aiuruoca , S 22 ° 18 ' 31.30 " W 44 ° 42 ' 7.30 ", 1440 m.a.s.l., 07/ix/ 2000, Nessimian, JL, col. ( CZNC). PARATYPES. 15 nymphs (three on slides), same data as holotype (5 CZNC, 5 UFRJ, 3 MZL, 2 IBN).

Additional material. 7 nymphs, BRAZIL, Rio de Janeiro, Parque Nacional de Itatiaia, Abrigo Rebouças, S 22 ° 23 ' 6.20 " W 44 ° 40 ' 43.40 ", 11 /xi/ 1978, Dos Santos NO and Pereira SM, col. ( CZNC). 1 nymph, BRAZIL, Rio de Janeiro, Itatiaia, Parque Nacional de Itatiaia, Cachoeira da Maromba, S 22 ° 25 ' 46.10 " W 44 ° 37 ' 9.80 ", 15 /viii/ 1998, Salles FF and Franscischetti CN, col. ( CZNC). 15 nymphs, BRAZIL, Rio de Janeiro, Itatiaia, primeiro riacho, S 22 ° 22 ' 39.90 " W 44 ° 41 ' 36.80 ", 11 /ix/ 1998, Salles FF, col. ( UFRJ). 10 nymphs, BRAZIL, Minas Gerais, Itamonte, Rio Aiuruoca , S 22 ° 18 ' 31.30 " W 44 ° 42 ' 7.30 ", 12 /ix/ 1998, Salles FF, col. 57 nymphs, BRAZIL, Minas Gerais, Itamonte, Rio Auiruoca, S 22 ° 18 ' 31.30 " W 44 ° 42 ' 7.30 ", 07/ix/ 2000, Salles, F.F., col. ( UFRJ). 34 nymphs, BRAZIL, Minas Gerais, Itamonte, Rio Aiuruoca , S 22 ° 18 ' 31.30 " W 44 ° 42 ' 7.30 ", 08/ix/ 2000, Assis JCF, Oliveira ALH and Passos MI, col. ( CZNC).

MZL

Musee Zoologique

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Baetidae

Genus

Cloeodes