Metaleptobasis mauffrayi Daigle, 2000

Ellenrieder, Natalia Von, 2013, <p> <strong> A revision of <em> Metaleptobasis </ em> Calvert (Odonata: Coenagrionidae) with seven synonymies and the description of eighteen new species from South America </ strong> </ p>, Zootaxa 3738 (1), pp. 1-155 : 52-54

Metaleptobasis mauffrayi Daigle, 2000

Figs. 1r ; 3r ; 4r ; 5r ; 8r ; 9q ; 10r ; 11r ; 12r ; 13g ; 14g

Metaleptobasis mauffrayi Daigle, 2000: 325–328 , figs. 1–7 (description of ♂ ♀, illustrations of ♂ mesanepisternal horns, genital ligula, S10, ♀ posterior lobe of pronotum and S8–10);— Heckman (2008: 402–403, fig. 3.1.467; in key, reproduction of illustrations from Daigle 2000);— Garrison & von Ellenrieder (2009: 49; mention);— Garrison et al. (2010: 284, figs. 1830, 1836, 1838 [sic!, it should be 1839], 1840; mention, illustrations of ♂ posterior lobe of pronotum, genital ligula, S10);— Tennessen (2012: 95; diagnosis from M. gibbosa ).

Types. Holotype ♂: ECUADOR, Orellana Prov., Yasuni National Park, ditches on road PC29/PC30, ca. 3.2 km from main road junction, 18 vii 1996, JJD [ JJD]; 1 ♀ allotype *: ECUADOR, Orellana Prov., Yasuni National Park, forest pool, main road (0°39'30''S, 76°21'21''W, 200 m), 16 xi 1997, KJT leg. [ FSCA]; 2 ♂ paratypes *: same as allotype but 15 xi 1997 [ FSCA]; 1 ♂, 1 ♀ paratypes: same [ KJT]; 3 ♂ paratypes *: same as holotype [ FSCA]; 3 ♂ paratypes: same as holotype [ KJT]; 7 ♂, 2 ♀ paratypes: same as holotype [ JJD]; 1 ♂ paratype *: ECUADOR, Sucumbíos Prov., Sushufindi, stream and marsh 2 km S of Yamaramsku school on Limoncocha road (0°24'S, 76°36'W, 243 m), 19 vii 1996, W.F. Mauffray leg. [ FSCA]; 1 ♂ paratype *: same but Limoncocha on Río Napo (300 m), 25 xi 1980, M.J. Westfall, Jr. leg. [ FSCA]; 1 ♂, 1 ♀ paratypes *: PERU, Loreto Dep., Explornapo camp near Sucusari River , 100 mi NE Iquitos {3°16'33''S, 72°56'18''W}, 30 vi 1990, S.W. Dunkle leg. [ FSCA]; 7 ♂ paratypes *: Explorama Lodge, on Amazon River 25 mi E of Iquitos {3°27'9''S, 72°52'31''W, 83 m}, 9 vii 1990, S.W Dunkle leg. [ FSCA].

Specimens examined. Total: 131 ♂, 24 ♀: 14 ♂, 1 ♀ paratypes, 1 ♀ allotype; COLOMBIA, Putumayo Dep .: 1 ♀, Umbría {0°51'N, 76°34'W, 325 m}, 28 x 1930, G.G. Klug leg. [ BMNH]; Amazonas Dep.: Municipio Puerto Nariño, muddy stream in forest, affluent of Quebrada El Salto , (3°45'54"S, 70°21'50" W, 103 m), 2–6 xi 2012, C. Moreno leg. [ CEUA, from photographs]; ECUADOR, Sucumbíos Prov. : 1 ♂, Reserva Limoncocha , administration area and down to dock (0°24'21''S, 76°37'12''W, 255 m), 25 i 2010, D. Wagner, WAH, M. Thomas, F. Morrison & R. Vargas leg. [ WAH] ; 1 ♀, small stream with pond above bridge, 20 km SSE of Shushufindi, 2 km N of Yamanunka village (0°20'35''S, 76°39'46''W, 252 m), 25 i 2010, D. Wagner, J. Ascher, WAH & F. Morrison leg. [ WAH]; Orellana Prov. : 3 ♂, Tiputini Biodiversity Station USFQ, seepage areas under bushes and trees surrounding open grassy area behind dining room (0°38'18''S, 76°8'57''W, 220 m), 10 i 2009, RWG & NVE leg. [ NVE] ; 7 ♂, same but [ RWG] ; 4 ♂, same but [ USFQ] ; 2 ♂, same but 11 i 2009 [ USFQ] ; 6 ♂, same but [ RWG] ; 3 ♂, same but 14 i 2009 [ NVE] ; 3 ♂, same but [ RWG] ; 3 ♂, same but [ USFQ] ; 2 ♂, same but 15 i 2009 [ NVE] ; 2 ♂, same but [ RWG] ; 2 ♂, same but [ USFQ] ; 1 ♂, same but 16 i 2009 [ NVE] ; 1 ♂, 1 ♀ (in tandem) same but [ RWG] ; 1 ♂, 1 ♀, same but [ USFQ] ; 1 ♂ 1 ♀ (in tandem) same but 18 i 2009 [ NVE] ; 1 ♂, same but [ NVE] ; 1 ♀ (incomplete, taken from spider web), same but [NVE]; 1 ♂, same but [ RWG] ; 2 ♂, same but [ USFQ] ; 2 ♂, same but swamp at marker 650 of Parahuaco trail (0°38'23''S, 76°8'43''W, 229 m), 21 i 2009 [ RWG] ; 3 ♂, same but Guacamayo trail between markers 450–2100 (0°38'6''S, 76°9'12''W, 237 m), 22 i 2009 [ USFQ] ; 3 ♂, same but black water stream crossing Guacamayo trail at marker 2050 (0°38'18''S, 76°8'57''W, 220 m); 16 i 2009 [ USFQ] ; 1 ♂, 1 ♀ (in tandem), same but 17 i 2009 [ RWG] ; 2 ♂, same but [ RWG] ; 1 ♀, same but Tiputini river (0°38'13''S, 76°9'0''W, 230 m), 21 i 2012, D. Wagner, J. Ascher, WAH & F. Morrison leg. [ WAH] ; 1 ♂, Yasuni National Park, Scientific Research Station, palm swamp just S of Bogi Este River, S of km 42 on Yasuni Road (0°38'S, 76°30'W), 12 vi 1995, KJT [ FSCA] ; 1 ♂, same but pool, marker 29 on Yasuni Road (0°38'S, 76°30'W, 180 m), 11 vi 1995, KJT leg. [ FSCA] ; 1 ♂, Yasuni National Park (0°39'3''S, 76°21'21''W), 15 xi 1997, TWD leg. [ TWD] ; 4 ♂, 2 ♀, Yasuni National Park, Scientific Research Station (0°40'17''S, 76°24'2''W, 220 m), 7-21 xi 2001, ACR leg. [ ACR] ; 1 ♂, 1 ♀ (in copula), same data [ ACR] ; 1 ♂, Yasuni National Park, small stream 3.6 km from Scientific Station (0°42'S, 76°8'W, 200 m), 18 vii 1996, KJT leg. [ FSCA] ; 1 ♀, Reserva Étnica Waorami, Onkone Gare Camp, in building Transect Ent. Fogged Lot # 927 (0°39'S, 76°26'W, 220 m), 11 x 1994, T.L. Erwin et al. leg. [ USNM] ; 1 ♀, same but 1 km S Onkore Gare Camp, transect Ent., Fogged (0°38'S, 76°36'W, 220 m), 23 i 1994 [ USNM] ; 1 ♂, same but 1 km S Okone Gare Camp, canopy fogging project, Lot #988 TR2 #9, terra firme forest (0°39'25''S, 76°27'10''W, 216 m), 9 ii 1995 [ USNM] ; 1 ♀, same but Lot #981 TR2 #9 [ USNM] ; 1 ♂, same but Lot #1054, 14 ii 1995 [ USNM] ; 1 ♀, same but Lot #1183 TR2 #3, 4 x 1995 [ USNM] ; 1 ♀, same but Lot #1234 TR7 #4, 7 x 1995 [ USNM] ; 1 ♀, same but Lot #1558 TR4 #8, 21 vi 1996 [ USNM] ; 1 ♂, same but Lot #1492 TR10 #2, 10 ii 1996 [ USNM]; Sucumbíos Prov. : 1 ♂, Sushufindi, stream and marsh 2 km S of Yamaramsku school on Limoncocha Rd. (0°24'S, 76°36'W, 243 m), 19 vii 1996, KJT leg. [ KJT] ; 1 ♂, same but lake shore and nearby areas, 25 xi 1980, M.J. Westfall leg. [ FSCA] ; 1 ♂, Río Shiripuno, vicinity Shiripuno Lodge , 26 km SE of Shiripuno bridge (1°6'17''S, 76°43'54''W, 235 m), 23 i 2009, D. Wagner, WAH, E. Tapia, J. Miller & V. Wagner leg. [ WAH] ; 1 ♀, Río Shiripuno, vicinity Shiripuno Lodge , 26 km SE of Shiripuno bridge, shady forest, 1–3 m above water, often away from water (1°6'17''S, 76°43'54''W, 235 m), 25 i 2009, D. Wagner, WAH, E. Tapia, J. Miller & V. Wagner leg. [ WAH]; Napo Prov. : 1 ♂, Pano road, 10 km SW of Tena, 2–4 m wide river, shallow, with quartz gravel, some sand and holes (1°3'2''S, 77°53'20''W, 598 m), 30 i 2011, R. Vargus, WAH, & F. Morrison leg. [ WAH] ; 1 ♀, side pool Río Chinchipino, E of Jatun Sacha , 27.7 km E of Puerto Napo (1°4'24''S, 77°35'12''W, 400 m), 22 vii 1996, KJT leg. [ FSCA]; Morona-Santiago Prov. : 2 ♂, 2 ♀, Cusuimi, Río Cusuimi , 150 km SE of Puyo (2°43'21''S, 77°40'31''W, 320 m), 15 v–5 vi 1971, B. Malkin & B. Yuma leg. [ RMNH]; PERU, Loreto Dep .: 1 ♂, Aguas Negras, Terra Firme , stream in forest (0°31'22''S, 75°15'24''W, 145 m), 14 iii 1994, Robbins leg. [ USNM] ; 1 ♂, Explornapo Camp at junction of Sucusari River and Napo River at Llachapa , ca. 100 mi NE Iquitos {3°16'S, 72°56'W, 97 m}, 14 vii 1990, S.W. Dunkle leg. [ NVE] ; 4 ♂, same but [ FSCA] ; 5 ♂, 1 ♀, same but 30 vi 1990 [ FSCA] ; 3 ♂, same but 27 viii 1989 [ FSCA] ; 1 ♂, Explorama Lodge, 50 mi NE Iquitos on Amazon River at junction with Yanamono River {3°22'S, 72°48'W}, 27 viii 1992, S.W. Dunkle leg. [ FSCA] ; 1 ♂, same but 1 ix 1989 [ DRP] ; 2 ♂, same but 12 viii 1992 [ FSCA] ; 6 ♂, same but 20 viii 1992 [ FSCA] ; 1 ♂, Explorama Lodge, on Amazon River 25 mi E of Iquitos {3°27'S, 72°52'W, 83 m}, 19 viii 1989, S.W Dunkle leg. [ FSCA] ; 1 ♂, same but 20 viii 1989 [ FSCA] ; 5 ♂, 1 ♀, 25 vi 1990 [ FSCA] ; 1 ♂, same but 8 vii 1990 [ FSCA] ; 1 ♂, same but 14 vii 1990 [ NVE] ; 2 ♂, same but 25 vi 1991 [ FSCA] ; 1 ♂, same but 9 viii 1992 [ RWG] ; 3 ♂, Iquitos {3°46'S, 73°15'W, 106 m}, iii 1936, G.G. Klug leg. [ BMNH] 4 ♂, same but iv 1936 [ BMNH] ; 1 ♂, same but v 1938 [ BMNH] .

Characterization. Head. Labrum mostly pale; black on dorsum of head extensive; postocular lobes rounded ( Fig. 1r ). Thorax. Pronotum anterior lobe ( Figs. 4r ; 5r ) smooth; anterior and middle lobes of pronotum separated dorso-laterally by a groove; anterior area of propleuron with a prominent rounded tubercle (t.); anterior margin of middle lobe of pronotum smooth, and dorsal surface smooth in male, in female with upright antero-dorsal ear-like lobes, narrow ( Figs. 4r v , vii; 67% of examined females) or wide and sinuous (33% of examined females; Fig. 4r iii–iv, vi, viii–ix; 5 iii–iv) pronotum posterior lobe trilobed with median lobe rounded and lateral lobes rounded or angled in male ( Figs. 4r i –ii; 5 ii, v), in female with lateral corners produced antero-dorsally, posterior lobe entire or trilobed with medial lobe rounded to pointed, with point short to strongly produced postero-dorsally ( Figs. 4r iii– ix); bases of mesanepisternal horns separated; horns vestigial in female, about 0.33 of mesostigmal plate width ( Figs. 5r ii–v), in male well developed, as long as 1.2–1.5 times mesostigmal plate width, of medium thickness, directed antero-dorsally at about 45° with dorsum, with tip pointed to bluntly pointed ( Fig. 5r i ); mid-dorsal dark stripe as wide as about 0.50 of mesanepisterna, parallel sided to slightly narrowing posteriorly ( Fig. 3r ); Pt squarish, with all sides about equal, to short rectangular, with anterior and posterior sides slightly longer than distal side. Abdomen.—Male genital lobe short, shorter than 0.50 of anterior hamule height, smoothly curved ( Fig. 8r ); male posterior hamule laminar and large, clearly surpassing ventral margin of genital fossa in lateral view, wide and about as high as anterior hamule, sickle-shaped with anterior and posterior sides smoothly convex, and tip bluntly pointed; curvature of basal segment of genital ligula marked by a deep concave depression, followed by a prominent convex protuberance; genital ligula distal segment sub-rectangular, apex transverse with a narrow ectal fold (e.f., Fig. 8r ); posterior margin of female S8 sternum with 1 to 3 denticles or small spines ( Fig. 9q ); distal end of ovipositor reaching apex of cercus; medial portion of male S10 postero-dorsal margin ( Figs. 10r ; 11r ; 12r ) projected posteriorly, lacking a medial incision, with an entire transverse dorsal prominence (pr.); male cercus in dorsal view arched medially, with tip depressed dorso-ventrally and curved medio-ventrally, about as wide as medial portion of cercus ( Fig. 10r ); ratio of male cercus length to S10 maximum length in lateral view about 1.5; ratio of male cercus length to paraproct length in lateral view about 0.87; male paraproct in lateral slightly narrowing distally, and about as wide sub-apically as medial section, with tip directed medio-ventrally ending on a single tooth ( Fig. 11r ).

Dimensions. Males (n 10): Hw 22 ± 0.7 [21–22.7]; abdomen 37.6 ± 1.3 [36–39]; total length 44.9 ± 1.5 [42.9– 46.6]. Females (n 10): Hw 23.7 ± 0.7 [22.6–24.6]; abdomen 36.9 ± 1.4 [34.1–39.4]; total length 44.2 ± 1.7 [40.9– 47.3].

Diagnosis. Among species with large laminar male posterior hamule clearly surpassing ventral margin of genital fossa in lateral view and posterior margin of female S8 sternum with denticles, spines, or processes, M. mauffrayi shares the anterior area of propleuron with a prominent rounded tubercle (t., Fig. 5r ) and male posterior hamule not surpassing anterior hamule ventrally ( Fig. 8r ) only with M. gabrielae , M. guillermoi , M. gibbosa , and M. panguanae ; in other species of this group the anterior area of propleuron is smooth and male posterior hamule is as high or slightly higher than anterior hamule. Among them, it shares the sub-rectangular distal segment of male genital ligula, and female sternum S8 with denticles or small spines only with M. gibbosa and M. guillermoi ; in M. gabrielae and M. panguanae distal segment of male genital ligula is pear-shaped, and female S8 has two strong straight sub-cylindrical ventro-lateral spines ( Figs. 8k–l ; 9j, u ). The male of M. mauffrayi differs further from M. gabrielae by distal portion of male cercus about as wide as width of medial third ( Figs. 10r ; vs. wider than medial third in M. gabrielae , Fig. 10j ), and the female by the presence of antero-dorsal upright ear-like lobes (e-l.) on middle lobe of pronotum ( Figs. 4r ; 5r ; middle lobe of pronotum smooth in M. gabrielae , Figs. 4j ; 5j ). Metaleptobasis mauffrayi differs from M. gibbosa by male S10 posterior margin with a medio-dorsal posterior projection (pr., Fig. 11r ; lacking a medio-dorsal posterior projection in M. gibbosa , Fig. 11k ), female anterior lobe of pronotum not projected ventrally and female hind lobe of pronotum more or less trilobed, with lateral corners angled ( Figs. 4r ii-ix; vs. anterior lobe of pronotum projected ventrally forming a prominent ridge rounded at its end and hind lobe of pronotum entire and smoothly convex with lateral corners fused to middle lobe of pronotum in M. gibbosa , Figs. 4k ii). It differs from M. guillermoi by middle lobe of pronotum smooth in male, and with upright antero-dorsal ear-like lobes in female ( Figs. 4r ; 5r ; both male and female with antero-dorsal laterally directed ear-like lobes with a dorso-basal concave depression in M. guillermoi , Figs. 4l ; 5l ), and male paraproct ending on a single apical ventral tooth (s.t., Figs. 10r ; 11r ; paraproct ending on a distal ridge on medial surface with dorsal and ventral teeth in M. guillermoi , te., Figs. 10l ; 11l ).

All known females of M. mauffrayi are dimorphic in the development of mesanepisternal horns, presence of processes on middle lobe of pronotum, which can be either narrow or wide, and shape of hind lobe of pronotum, which is very variable.

Habitat. Forest near rivers, small streams, swamps, marshes, seepage areas, small ditches, lakes, and pools. Specimens collected in Tiputini (NVE; RWG) were found in considerable numbers perching on low twigs and branches in forest undergrowth 0.2–1 m above the floor in a shady seepage area; the thorax of some appeared green due to growth of algae on its surface. A few other specimens were found perching on vegetation along forest trails and swamps.

Distribution. S Colombia, Ecuador, and N Peru ( Fig. 14g).

Figures

FIGURE 1. Head, dorsal view. (a) i. M. amazonica, male lectotype; (a) ii. M. amazonica, female paralectotype; (b) i. M. bicornis, male, Surinam, Kabalebo; (b) ii. M. bicornis, male, French Guiana, N of Cayenne; (b) iii. M. bicornis, female, Surinam, Commewetane; (c) i. M. bovilla, male, Costa Rica, La Selva; (c) ii. M. bovilla, female, same data; (d) i. M. brevicauda, male holotype; (d) ii. M. brevicauda, female paratype, Peru, Tingo María; (e) i. M. brysonima, male, paratype of M. incisula, Venezuela, Marawaka; (e) ii. M. brysonima, female, paratype of M. incisula, same data; (e) iii. M. brysonima, female, holotype of M. weibezahni; (e) iv. M. brysonima, female, holotype of M. tetragena; (f) i. M. diceras, male lectotype; (f) ii. M. diceras, male, Brazil, Abuna; (f) iii. M. diceras, female paralectotype; (f) iv. M. diceras, female, holotype of M. fernandezi; (f) iv. M. diceras, female, Venezuela, no locality; (f) v. M. diceras, female, Brazil, Abuna; (g) i. M. falcifera, male holotype; (g) ii. M. falcifera, female paratype, Peru, Pakitza; (h) i. M. foreli, male, Colombia, Puerto Berrio; (h) ii. M. foreli, male, paratype of M. westfalli, Panama, No. 5 on Standley, 22 vii 1950, FSCA; (h) iii. M. foreli, female, same data.

FIGURE 3. Pterothorax, dorsal view. (a) i. M. amazonica, male lectotype; (a) ii. M. amazonica, female paralectotype; (b) i. M. bicornis, male, French Guiana, N of Cayenne; (b) ii. M. bicornis, male, Surinam, Kabalebo; (b) iii. M. bicornis, female, Surinam, Moengotapoe; (b) iv. M. bicornis, female, Surinam, Commewetane; (c) i. M. bovilla, male, Costa Rica, La Selva; (c) ii. M. bovilla, female, same data; (d) i. M. brevicauda, male holotype; (d) ii. M. brevicauda, female paratype, Peru, Tingo María; (e) i. M. brysonima, male, paratype of M. incisula, Venezuela, Marawaka; (e) ii. M. brysonima, female, paratype of M. incisula, same data.

FIGURE 4. Prothorax and anterior portion of pterothorax, dorsal view. (a) i. M. amazonica, male lectotype; (a) ii. M. amazonica, male paralectotype; (a) iii. M. amazonica, female paralectotype; (b) i. M. bicornis, male, Surinam, Kabalebo; (b) ii. M. bicornis, male, Brazil, Paranapuebas; (b) iii. M. bicornis, male, French Guiana, N of Cayenne; (b) iv. M. bicornis, male, Guyana, Potaro; (b) v. M. bicornis, male, Trinidad, Cumuto; (b) vi. M. bicornis, female holotype. o.c.: oblique crest; cr.: crest; e-l.: ear-lobe; l-v. p.: latero-ventral projection; p.l.: postero-lateral projection; t.: tubercle.

FIGURE 5. Prothorax and anterior portion of pterothorax, lateral view. (a) i. M. amazonica, male lectotype; (a) ii. M. amazonica, female paralectotype; (b) i. M. bicornis, male, Trinidad, Cumuto; (b) ii. M. bicornis, male, Guyana, Potaro; (b) iii. M. bicornis, male, Surinam, Kabalebo; (b) iv. M. bicornis, male, French Guiana, N of Cayenne; (b) v. M. bicornis, male, Brazil, Paraupebas; (b) vi. M. bicornis, female, Surinam, Langamankondre; (b) vii. M. bicornis, female, Surinam, Kabalebo; (b) viii. M. bicornis, female, Surinam, Gansee; (b) ix. M. bicornis, female, Surinam, Commetewane; (b) x. M. bicornis, female, French Guiana, N of Cayenne. c.: c-shaped crest; e-l.: ear-lobe; l-v.p.: latero-ventral margin projection; p.l.: postero-lateral projection; t.: tubercle.

FIGURE 8. Genital ligula, lateral view (above) and ventral view (below). (a) M. amazonica, lectotype; (b) i. M. bicornis, Surinam, Kabalebo; (b) ii. M. bicornis, French Guiana, N of Cayenne; (c) i. M. bovilla, Costa Rica, La Selva; (c) ii. M. bovilla, same data; (d) M. brevicauda, holotype; (e) i. M. brysonima, paratype of M. incisula, Venezuela, Marawaka; (e) ii. M. brysonima, Peru, Tambopata; (e) iii. M. brysonima, Brazil, Abuna; (f) i. M. diceras, lectotype; (f) ii. M. diceras, Brazil, Abuna; (f) iii. M. diceras, Peru, Manu. e.f.: ectal fold; pr.: prominent protuberance; s.d.: slight depression; t.: terminal fold.

FIGURE 9. Female S8–10, lateral view unless indicated otherwise. (a) M. amazonica, paralectotype; (b) i. M. bicornis, Surinam, Commetewane; (b) ii. M. bicornis, Brazil, Belem; (c) M. bovilla, Costa Rica, Puerto Viejo; (d) M. brevicauda, paratype, Peru, Tingo María; (e) i. M. brysonima, paratype of M. incisula, Venezuela, Marawaka; (e) ii. M. brysonima, holotype of M. weibezahni; (e) iii. M. brysonima, holotype of M. tetragena; (f) i. M. diceras, paralectotype; (f) ii. M. diceras, Brazil, Abuna; (f) iii. M. diceras, Guyana, Kamana; (f) iv. M. diceras, Venezuela; (f) v. M. diceras, Trinidad, N of Sangre Grande; (g) i. M. falcifera, paratype, Peru, Explorer’s Inn, ventral view on right.

FIGURE 10. Male S10, dorsal view. (a) M. amazonica, lectotype; (b) i. M. bicornis, Brazil, Paraupebas; (b) ii. M. bicornis, Surinam, Kabalebo; (b) iii. M. bicornis, Guyana, Kumu River; (b) iv. M. bicornis, French Guiana, N of Cayenne; (b) v. M. bicornis, Trinidad, E of Valencia; (c) M. bovilla, Costa Rica, La Selva; (d) i. M. brevicauda, holotype; (e) M. brysonima, Venezuela, Río Baria; (f) i. M. diceras, Brazil, Paraupebas; (f) ii. M. diceras, Brazil, Abuna; (f) iii. M. diceras, Peru, Pakitza; (f) iv. M. diceras, Peru, Pakitza; (f) v. M. diceras, Trinidad, Cumuto, paratype of M. manicaria; (f) vi. M. diceras, Trinidad, Cumuto, paratype of M. manicaria; (g) M. falcifera, holotype; (h) i. M. foreli, Colombia, Fundación; (h) ii. M. foreli, paratype M. westfalli, Panama, Barro Colorado # 54; (i) i. M. furcifera, holotype; (i) ii. M. furcifera, paratype, Peru, Río Seco. b.t.: bicuspidate tooth; r.: ridge.

FIGURE 11. Male S10, medio-dorsal view. (a) M. amazonica, lectotype; (b) i. M. bicornis, Surinam, Kabalebo; (b) ii. M. bicornis, Guyana, Potaro; (b) iii. M. bicornis, French Guiana, N of Cayenne; (b) iv. M. bicornis, Trinidad, E of Valencia; (c) M. bovilla, Costa Rica, La Selva; (d) M. brevicauda, holotype; (e) i. M. brysonima, Venezuela, Río Baria; (e) ii. M. brysonima, Peru, Tambopata; (e) iii. M. brysonima, Brazil, Abuna; (f) i. M. diceras, Brazil, Abuna; (f) ii. M. diceras, Trinidad, Cumuto, paratype of M. manicaria; (f) iii. M. diceras, Trinidad, E of Valencia; (g) M. falcifera, holotype; (h) M. foreli, Colombia, Fundación; (i) i. M. furcifera, paratype, Peru, Río Seco; (i) ii. M. furcifera, paratype, Peru, Río Seco; (j) M. gabrielae, holotype; (k) M. gibbosa, Ecuador, Copales; (l) M. guillermoi, holotype. b.t.: bicuspidate tooth; p-m.p.: postero-medial projection; pr.: prominence; r.: ridge; s.t.: single tooth; te.: teeth.

FIGURE 12. Male S10, lateral view. (a) M. amazonica, lectotype; (b) i. M. bicornis, Surinam, Kabalebo; (b) ii. M. bicornis, French Guiana, N of Cayenne; (c) M. bovilla, Costa Rica, La Selva; (d) M. brevicauda, holotype; (e) i M. brysonima, paratype of M. incisula, Venezuela, Marawaka; (e) ii M. brysonima, Venezuela, Río Baria; (f) i. M. diceras, Brazil, Paraupebas; (f) ii. M. diceras, Brazil, Abuna; (f) iii. M. diceras, Peru, Pakitza; (f) iv. M. diceras, Trinidad, Cumuto, paratype of M. manicaria; (g) M. falcifera, holotype; (h) i. M. foreli, Colombia, Fundación; (h) ii. M. foreli, paratype M. westfalli, Panama, Barro Colorado # 54; (i) i. M. furcifera, holotype; (i) ii. M. furcifera, paratype, Peru, Río Seco; (j) M. gabrielae, holotype; (k) M. gibbosa, paratype [FSCA], Ecuador, Copales; (l) M. guillermoi, holotype. sw.: swelling.

FIGURE 13. Adults of Metaleptobasis. (a) i. M. brysonima, male, Peru, Madre de Dios, Main Trail, Explorer's Inn, 12 vii 2002, by DRP; (a) ii. M. brysonima, female, same data but, 23 vii 2002, by N. Smith; (a) iii. M. brysonima, male, same data but, 30 vii 2002, by DRP; (b) M. diceras, female, Peru, Madre de Dios, Main Trail, Explorer's Inn, 21 vii 2002, by DRP; (c) M. falcifera, male, Peru, Madre de Dios, Katicocha Trail, Explorer's Inn, 9 vii 2002, by DRP. ♀ ♂