Cloeodes atlanticus Salles, Massariol & Angeli
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 : 16-19
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|Cloeodes atlanticus Salles, Massariol & Angeli|
Figures 1 View FIGURE 1 c, 11, 12, 30.
Diagnosis. NYMPH. A) Large body size (> 7.0 mm); B) Body color pattern with distinct darker marks on abdominal terga ( Fig. 1 View FIGURE 1 c); C) Labrum, medially, with 2 to 3 long setae ( Fig. 11 View FIGURE 11 a); D) Maxillary palp as long as length of galea-lacinia ( Fig. 11 View FIGURE 11 d); E) Inner margin of labial palp segment III subequal to outer margin ( Fig. 11 View FIGURE 11 e); F) Distal projection of fore femur long (distinctly exceeding apex of femur, Figs. 12 View FIGURE 12 a, 12 b); G) Gills without medial rib ( Fig. 12 View FIGURE 12 e); H) Terga with spines present on posterior margin of segments II–X, larger spines on posterior margin 5 × longer than wide ( Fig. 12 View FIGURE 12 d).
Nymph. Lengths. Body: 8.2 mm; cerci: 3.5 mm; terminal filament: 3.5 mm.
Coloration ( Fig. 1 View FIGURE 1 c). General coloration yellowish-white profusely washed with dark brown. Head yellowishwhite almost completely washed with brown. Legs yellowish-white almost completely washed with brown. Terga. Segments IV and VIII less pigmented; segment IX with a medial less pigmented area; segments II, III and VII sometimes less pigmented, but never as in segments IV and VIII; segments I–IX medially with a longitudinal unpigmented stripe. Sterna yellowish-white; segments VI–IX washed with brown. Filaments brown, apex broken.
Head. Labrum ( Fig. 11 View FIGURE 11 a). Length about 0.6 × maximum width; dorsal arc with 2 to 3 long medial setae; ventrally with 10 spine-like setae near lateral margin.
Mandibles ( Figs. 11 View FIGURE 11 b, 11 c). Denticles of left mola constricted at base (as in fig. 6 f).
Maxilla ( Fig. 11 View FIGURE 11 d). Medially with 1 spine-like seta + 9 apically pointed setae. Maxillary palp reaching apex of galea-lacinia; palp segment II 1.6 × length of segment I.
Labium ( Fig. 11 View FIGURE 11 e). Base of glossa expanded (reaching at least half of paraglossa); inner and outer margin respectively with around 20 and 12 setae increasing in length apically; ventral surface scattered with few short setae at base. Paraglossa dorsally with arc of 5 setae close to inner margin; ventrally with arc of 8–10 setae close to inner margin. Labial palp with segment I 0.9 × length of segments II and III combined; segment II dorsally with oblique row of 6–7 setae; segment III with distal margin slightly truncate; inner margin subequal to outer margin; ventrally covered with around 30 long setae; setae on inner margin serrate.
Thorax. Hind wing pad. Present.
Fore leg ( Fig. 12 View FIGURE 12 a); Ratio 1.6: 1 (0.8mm): 1: 0.2. Femur. Length about 4 × maximum width; outer margin with row of 11–12 blunt, clavate setae (length of setae about 0.1 × maximum width of femur); submarginal setae absent; anterior surface and inner margin with around 35 simple spine-like setae; posterior surface with around 25 minute scattered setae near inner margin; distal projection exceeding apex of femur ( Fig. 12 View FIGURE 12 b), 0.2 × width of femur, apically with 2 clavate setae. Tibia. Outer margin with many simple setae; inner margin with two serrate setae on apex; subtending bristle clavate, extending apex of tibia ( Fig. 12 View FIGURE 12 c). Tarsus. Inner margin with row of 14 + 1 spinelike setae. Tarsal claw. 0.2 × length of tarsus.
Mid and hind legs. Similar to fore leg, except for the lower number of setae on anterior surface of femur, subapical projections of femur less developed and type of setae on inner apex of tibia (simple instead of serrate).
Abdomen. Terga ( Fig. 12 View FIGURE 12 d). With spines present on posterior margin of segments II–X; larger spines on posterior margin 5 × longer than wide.
Sterna . With spines present on posterior margin of segments: IV–IX.
Gills ( Fig. 12 View FIGURE 12 e). Outer margin serrated on distal 1 / 4; inner margin slightly serrated; medial rib absent; tracheae extending from main trunk to inner and outer margins. Gill I about 3 / 4 length of segment II, oval. Gill IV reaching apex of segment VI, asymmetric, broad at middle. Gill VII reaching 1 / 2 of segment IX.
Paraproct ( Fig. 12 View FIGURE 12 f). With 12–14 spines.
Cercus . With large spines on every four segments at base and on every two segments toward apex.
Terminal filament. With spines on every four segments.
Male and female imago. Unknown.
Etymology. Reference to Atlantic Forest, one of the World's hotspot and the biome where several of the new species described herein were found.
Distribution ( Fig. 30 View FIGURE 30 ). Southern Brazil, Paraná State, Serra Geral.
Type-material. HOLOTYPE. Nymph (on two slides, one with mouth parts, legs and gills, one with abdomen), BRAZIL, Paraná, Mangueirinha, Afluente do Rio Marreco, S 26 °00'04.3" W 52 °08' 15.4 ", 817 m. a.s.l., 14 /ix/ 2011, Pes A, Cruz P, Boldrini R and Hamada N, col. ( CZNC). PARATYPES: 5 nymphs (two on slides), same data as holotype (2 CZNC, 3 INPA).
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