Cloeodes guara 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 : 22-24

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Cloeodes guara Salles, Massariol & Angeli

sp. nov.

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

Figures 2 View FIGURE 2 a, 15, 16, 30, 31a.

Diagnoses. NYMPH. A) Small body size (<5.0 mm); B) Body color pattern with distinct striped pattern ( Fig. 2 View FIGURE 2 a) C) Labrum, medially, with two long setae ( Fig. 15 View FIGURE 15 a); D) Maxillary palp short (around ¾ length of galea-lacinia, Fig. 15 View FIGURE 15 d); E) Inner margin of labial palp segment III distinctly shorter than outer margin ( Fig. 15 View FIGURE 15 e); F) Distal projection of fore femur short (not exceeding apex of femur, Figs. 16 View FIGURE 16 a, 16 b); G) Gills without medial rib, strongly pigmented ( Fig. 16 View FIGURE 16 e); H) Gill VII extending well beyond distal margin of tergum X ( Fig. 2 View FIGURE 2 a).

Nymph. Lengths. Body: 4.7–4.8 mm; cerci: 2.4 mm; terminal filament: 2.4 mm; antenna: 1.3–1.5 mm.

Coloration ( Fig. 2 View FIGURE 2 a). General coloration blackish with yellow bands. Head yellowish, darker on gena. Thorax. Pronotum to distal half of wing pad yellow. Legs yellowish-white. Femur washed with black. Hind femur less pigmented. Terga. Segments I to half of IV yellow. Sterna as in terga. Filaments yellowish-white washed with black at base and apex.

Head. Labrum ( Fig. 15 View FIGURE 15 a). Length about 0.9 × maximum width; dorsal arc with 2 medial setae; ventrally with 10 spine-like setae near lateral margin.

Mandibles ( Figs. 15 View FIGURE 15 b, 15 c). Denticles of left mola constricted at base (as in Fig. 6 View FIGURE 6 f).

Maxilla ( Fig. 15 View FIGURE 15 d). Medially with 1 spine-like seta + 8 apically pointed setae. Maxillary short (around ¾ length of galea-lacinia); palp segment II 1.3 × length of segment I.

Labium ( Fig. 15 View FIGURE 15 e). Base of glossa expanded (reaching at least half of paraglossa); inner and outer margin respectively with around 20 and 15 spine-like setae increasing in length apically; ventral surface scattered with apically pointed, fine, simple setae at base. Paraglossa dorsally with arc of 3 setae close to inner margin; ventrally with arc of 8 setae close to inner margin; segment II dorsally with oblique row of 4 setae; segment III with distal margin slightly truncate; inner margin distinctly shorter than outer margin; ventrally covered with around 20 long setae ( Fig. 15 View FIGURE 15 e); setae on inner margin simple.

Thorax. Hind wing pad. Present.

Fore leg ( Fig. 16 View FIGURE 16 a). Ratio 2: 1 (0.7mm): 1: 0.3. Femur. Length about 6 × maximum width; outer margin with row of 8 clavate setae (length of setae about 0.1 × maximum width of femur); submarginal setae present; anterior surface and inner margin with around 30 spine-like setae; posterior surface bare; apex slightly projected ( Fig. 16 View FIGURE 16 b), apically with 2 clavate setae. Tibia. Outer margin with few simple setae; inner margin with two simple setae on apex; subtending bristle blunt, extending apex of tibia ( Fig. 16 View FIGURE 16 c). Tarsus. Inner margin with row of 30 + 1 spine-like setae. Tarsal claw. 0.3 × length of tarsus.

Mid and hind legs. Similar to fore leg, except for the lower number of setae on anterior surface of femur and type of setae on inner apex of tibia (simple instead of serrate).

Abdomen. Terga ( Fig. 16 View FIGURE 16 d). With spines present on posterior margin of segments I–X; larger spines on posterior margin 3.3 × longer than wide.

Sterna . With spines present on posterior margin of segments II–IX.

Gills ( Fig. 16 View FIGURE 16 e). Outer margin smooth; inner margin smooth; medial rib absent; tracheae pigmented, extending from main trunk to outer margin. Gill I reaching apex of segment III, asymmetrically lanceolate. Gill IV as long as length of segments V to VIII combined, asymmetric, broad at base. Gill VII extending apex of segment X.

Paraproct ( Fig. 16 View FIGURE 16 f). With 21–25 spines.

Cercus . Without large spines.

Terminal filament. Without large spines.

Male and female imago. Unknown.

Etymology. A reference to the Lobo-Guará or Maned Wolf [ Chrysocyon brachiurus (Illiger, 1815) ], the largest canid in South America and one of the symbols of the Santuário do Caraça, where the new species was found. Distribution ( Fig. 30 View FIGURE 30 ). Southeastern Brazil, Minas Gerais State, Serra do Caraça (part of Serra do Espinhaço), Santuário do Caraça.

Type-material. HOLOTYPE. Nymph (on a single slide), BRAZIL, Minas Gerais, Serra do Caraça, Rio Cascatinha, S 20 ° 5 ' 56.71 " W 43 ° 28 ' 8.17 ", 1495 m.a.s.l., 17 /ix/ 2012, Salles FF, col. ( CZNC). PARATYPES. 33 nymphs (one on slides), same data as holotype (18 CZNC, 5 MZL, 5 IBN, 5 INPA).


Musee Zoologique


Instituto Nacional de Pesquisas da Amazonia