Drepanoneura muzoni, Ellenrieder, Natalia Von & Garrison, Rosser W., 2008

Ellenrieder, Natalia Von & Garrison, Rosser W., 2008, Drepanoneura gen. nov. for Epipleoneura letitia and Protoneura peruviensis, with descriptions of eight new Protoneuridae from South America (Odonata: Protoneuridae), Zootaxa 1842, pp. 1-34 : 23-25

publication ID	https://doi.org/ 10.5281/zenodo.183222
DOI	https://doi.org/10.5281/zenodo.6231948
persistent identifier	https://treatment.plazi.org/id/038087FC-FFCD-4918-FF66-D72E77AAFD56
treatment provided by	Plazi
scientific name	Drepanoneura muzoni
status	sp. nov.

Treatment

Drepanoneura muzoni View in CoL sp. nov.

Figures 2 View FIGURE 2 j–k, 7, 18, 27f–30f, 36g –h, 37

Etymology. We name this species muzoni (noun in the genitive case) in honor of our good friend and colleague Javier Muzón, in gratitude for introducing the senior author to Odonatology and for his continuing aid during our studies, and in recognition of his contributions to the knowledge of neotropical Odonata .

Specimens examined. Total 45 ɗ, 7 Ψ.— Holotype ɗ: Ecuador, Orellana Province, Parque Nacional Yasuni, stream on Waorani Reserve road (00°42'S, 76°28'W, 200 m), 18 vii 1996, leg. K.J. Tennessen (FSCA). Paratypes: Ecuador, Sucumbíos Province: 2 ɗ, Limoncocha, forest stream (00°24'S, 76°36'W, 300 m), 23/ 24 vii 1977, leg. D.R. Paulson (DRP); 1 ɗ, same data (RWG); 2 ɗ, same data but 24 xi 1980, leg. M.J. Westfall, Jr. (FSCA); 3 ɗ, 1 Ψ, same data but Playaco River (243 m), 22/ 25 viii 1980, leg. K.W. Knopf (RWG); 3 ɗ, same data (FSCA). Orellana Province: 1 ɗ, Parque Nacional Yasuni, small stream 2.3 km E of Scientific Research Station (00°38'S, 76°30'W, 180 m), 0 9 vi 1995, leg. K.J. Tennessen (RWG); 2 ɗ, same data but slow stream 6.8 km from Scientific Station, 15 xi 1997 (KJT); 1 Ψ, same data but stream at PC 29 & 30, 1.8 km from jct. with park road, 18 vii 1996 (RWG); 1 ɗ, same data but 16 xi 1997 (RWG); 2 ɗ, same data but leg. B. Mauffray (FSCA); 1 Ψ, same data but Río Savaleto at km marker 31, 17 vii 1996 (KJT); 1 ɗ, same data but stream at km 29 on Yasuni Road, 11 vi 1995 (KJT); 2 ɗ, same data but km 46 on Waorani Reserve road, small forested stream (200 m), 16 xi 1997, leg. B. Mauffray (FSCA); 1 ɗ, same data (RWG). Napo Province: 1 ɗ, Río Jatún Yacu (01°01'S, 77°50'W, 700 m), 20 iii 1937, leg. W. Clarke-Macintyre (UMMZ); 2 ɗ, 1 Ψ, Río Chinchipino, E of Jatún Sacha, 27.7 km E of Puerto Napo (01°04'24''S, 77°35'12''W, 400 m), 13/ 22 vii 1996, leg. K.J. Tennessen (KJT); 1 ɗ, same data (RWG); 3 ɗ, same data but 13 xi 1997, leg. T.W. Donnelly (TWD); 2 ɗ, same data (RWG); 6 ɗ, Napo watershed, headwaters of Río Arajuna, stream 3 (01°05'S, 77°32'W, 1000 m), 23/ 30 iv 1941, leg. W. Clarke-Macintyre (UMMZ); 1 ɗ, same data (MLP); 1 ɗ, same data (RWG); 1 ɗ, same data (TWD); 1 ɗ, same data but stream 5 (RWG). Peru, Loreto Department: 1 Ψ, Muniches, Río Paranapura on Río Huallaga (05°51'S, 76°10'W, 177 m), vii 1939, leg. G.G. Klug (RWG). Madre de Dios Department: 1 Ψ, Pakitza, Res. Zone, PN Manu, Trail 1, Zone 2 to basecamp (11°56'S, 71°18'W, 250 m), 11 ix 1989, leg. J. Louton (USNM); 1 ɗ, 1 Ψ, same data but mrk. 18, seeps, 16/ 17 ix 1989, leg. N.E. Adams (USNM); 1 ɗ, same data but 21 ix 1988, leg. O.S. Flint, Jr. (RWG); 2 ɗ, Tambopata-Cándamo Reserved Zone, Camp 5, Río Tambopata east bank, at stream (12°50'18''S, 69°17'59''W), 12 i 1998, leg. M. Butt (RWG).

Male holotype. Head. Labium, labrum except medio-basal black spot, anteclypeus, and second antennal segment pale yellow; base of mandibles, genae, ventral half of antefrons, and triangular spot on anterior surface of antennifer pale blue, remainder of head black.

Thorax. Prothorax, mesepisternum, mesepimeron, and stripe along dorsal margin of metapleural suture black with metallic green and copper reflections; stripe along ventral margin of humeral suture, metepisternum, metepimeron, and pterothoracic venter pale yellow ( Fig. 2 View FIGURE 2 j); coxae and trochanters yellow; femora yellow with three faint black bands; tibiae, tarsi, and pretarsi yellow with black apices; 4 spurs on metafemora, 6 on metatibiae. Hw 5.4 times as long as wide; 12 Px in Fw, 10 Px in Hw; MP reaching wing margin slightly distal to vein descending from subnodus; IR2 arising just distal to vein descending from subnodus; IR2 and RP 3 in contact one cell posterior to their origin; RP 2 beginning between Px 4 and 5 in right Fw, closer to Px 5 in left Fw and to Px 3 in both Hw; pt pale brown with yellow marginal hairline, shorter than underlying cell in Fw and as long as underlying cell in Hw, with costal side as long as or slightly shorter than posterior side.

Abdomen. Dorso-laterally black with metallic reflections except for narrow yellow bands interrupted medio-dorsally by black on base of S3–7; latero-ventral portion of terga and sterna pale brown to yellow. Apex of genital ligula with a shallow v-shaped cleft ( Fig. 18 View FIGURES 13 – 20 a) and latero-distal lobes short, broad and curved medially ( Fig. 18 View FIGURES 13 – 20 c). Dorso-posterior margin of S10 projected posteriorly ( Figs. 27 View FIGURE 27 f–28f). Ventral branch of cercus as long as base of cercus, approximately cylindrical ( Fig. 28 View FIGURE 28 f), in posterior view arising at mid-width of cercus and parallel to ventral branch of opposite cercus ( Fig. 30 View FIGURE 30 f). Paraproct pointed ( Fig. 28 View FIGURE 28 f).

Dimensions. Total length 33.8 mm; abdomen length 27.3 mm; Hw 18.5 mm.

Paratypes. Paratypes are similar to holotype but vary as follows: some specimens with pale humeral stripe and metepisternum obscured; femur yellow with one apical black band to entirely dark brown; 3-4 spurs on metafemora, 5–6 on metatibiae; Hw 5.3–5.6 times as long as wide; 11–15 Px in Fw, 9–12 Px in Hw; MP reaching wing margin at vein descending from subnodus to slightly distal to it, and IR2 sometimes arising at vein descending from subnodus; IR2 and RP 3 separated by a short crossvein one cell posterior to their origin; and RP 2 beginning between Px 4–7 in Fw and Px 3–4 in Hw. Female has ventral fourth of labrum yellow; more extensive pale color on mesepimeron and metepisternum ( Fig. 2 View FIGURE 2 k); posterior margin of pronotum medially cleft with a pair of dorsally directed laminar dorso-lateral processes, and a pair of medio-posteriorly directed laminar ventro-lateral processes on each side ( Fig. 7 View FIGURES 3 – 10 ); and ventral side of sub-basal plate of ovipositor approximately linear and dorsal side concave ( Fig. 36 View FIGURE 36 g).

Dimensions. Males (n=10): total length 32.2–35.7 mm [mean 33.9 mm; SD 1.2]; abdomen 27.3–30.7 mm [mean 28.9 mm; SD 1.1]; Hw 18–20.3 mm [mean 18.8 mm; SD 0.7]. Females (n=7): total length 30.7–33 mm [mean 32.1 mm; SD 0.7]; abdomen 26.2–28.2 mm [mean 27.4 mm; SD 0.7]; Hw 18.6–19.9 mm [mean 19 mm; SD 0.4].

Diagnosis. Male of D. muzoni shares with D. flinti and D. peruviensis the ventral branch of cercus arising at mid-width (not aligned with inner margin of cercus) and convergent to branch of opposite cercus at tip only ( Fig. 30 View FIGURE 30 f). It differs from both by the ventral branch of cercus being as long as base of cercus ( Fig. 28 View FIGURE 28 f) and usually by the presence of pale mesepisternal stripes ( Fig. 2 View FIGURE 2 j; obscured in some specimens), and further from D. peruviensis by the apex of genital ligula with a shallow v-shaped cleft ( Fig. 18 View FIGURES 13 – 20 a). Female is unique by its two pairs of laminar lateral processes on each side of posterior margin of pronotum, with the dorsal pair upright in lateral view ( Fig. 7 View FIGURES 3 – 10 b).