Metaleptobasis minteri Daigle, 2003

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 : 54-57

Metaleptobasis minteri Daigle, 2003

Figs. 1s ; 3s ; 4s ; 5s ; 8s ; 9r ; 10s ; 11s ; 12s ; 13h ; 14e

Metaleptobasis minteri Daigle, 2003: 371–374 , figs. 1–5 (description of ♂, illustrations of ♂ head, mesanepisternal horns, S10 and ♀ S9–10);— Heckman (2008: 400, fig. 3.1.343; in key, reproduction of illustrations from Daigle 2003);— Garrison et al. (2010: 284; mention);— Tennessen (2012: 95–96, fig. 24; comparison with M. knopfi , illustration ♂ genital ligula).

Metaleptobasis sp. B — Paulson (1985: 12; mention).

Types. Holotype ♂ *: ECUADOR, Napo Prov., Primavera, Lake Taracoa lake shore and nearby areas (0°27'S, 76°47'W), 26 viii 1978, K.W. Knopf leg. [ FSCA]; allotype ♀ * (in copula with holotype) [ FSCA]; 38 ♂, 7 ♀ paratypes, same data as holotype but [K.W. Knopf coll.]; 2 ♂ paratypes, same data but (0°24'S, 76°36'W, 243 m) [K.W. Knopf coll.]; 8 ♂, 1 ♀ paratypes, same data but 26 viii 1980 [K.W. Knopf coll.]; 1 ♂ paratype, same data but S.W. Dunkle leg. [ FSCA]; 12 ♂, 1 ♀ paratypes, same data but 13 vii 1997, S.M. & K.W. Knopf leg. [K.W. Knopf coll.]; 7 ♂, 1 ♀ * paratypes, Baeza-Lago Agrio road, 52 km NE of Chaco, swamp in forest and stream, 18 viii 1980, S.W. Dunkle leg. [ FSCA]; 4 ♂, 2 ♀ * paratypes, Limoncocha, lakeshore and nearby areas, 23 viii 1980, S.M. & K.W. Knopf leg. [ FSCA]; 1 ♂ paratype, Limoncocha on Río Napo, Lake Taracoa near Primavera (300 m), 4 xi 1980, M.J. Westfall, Jr. & D.G. Robinson leg. [ JJD]; 2 ♂ paratypes, 20 km E of Puerto Francisco de Orellana, Napo River, 9 vii 1983, T.H. & P.S. Gantenbein leg. [ JJD].

Specimens examined. Total: 83 ♂, 39 ♀: 1 ♂ holotype, 1 ♀ allotype, 10 ♂, 2 ♀ paratypes; COLOMBIA: Caquetá Dep .: 1 ♂, Río Caquetá, Tres Esquinas {1°32'N, 75°42'W, 566 m}, 18 i 1969, R.E. Dietz leg. [ USNM]; ECUADOR: Sucumbíos Prov. : 1 ♀, La Selva Jungle Lodge, Lago Garzacocha , ca. 40 km E of Limoncocha, 100 km E Coca, Garzacocha {0°28'S, 76°22'W, 230 m}, 12 x 1988, S.W. Dunkle [ FSCA] ; 1 ♂, Limoncocha {0°24'S, 76°37'W, 243 m}, 23 viii 1980, S.W. Dunkle [ FSCA] ; 1 ♂, swamp-stream 7 km W of Lago Agrio on Hwy 45 {0°4'N, 76°55'W, 10 m}, 8 vi 1995, S.W. Dunkle leg. [ FSCA] ; 1 ♂, unnamed river, 5 km SE of Shushufindi on road to Limoncocha (0°13'37''N, 76°38'52''W, 265 m), 25 i 2012, D. Wagner, J. Ascher, WAH & F. Morrison leg. [ WAH]; Orellana Prov. : 4 ♂, 2 ♀, Primavera, Laguna Taracoa {0°27'S, 76°45'W, 300 m}, 27 vii 1977, D.R. Paulson & S. Hills leg. [ DRP] ; 3 ♂, 3 ♀, same but swamp on N side, 240 m, 26 viii 1980, S.W. Dunkle leg. [ FSCA] ; 1 ♂, 1 ♀, S on Pompeya Sur-Iro road at km marker 31, pit near Río Sabaletez {0°36'S, 76°28'W, 230 m}, 12 vi 1995, S.W. Dunkle leg [ FSCA]; Morona-Santiago Prov. : 2 ♂, Cusuimi, Río Cusuimi , 150 km SE of Puyo {2°43'S, 77°40'W, 320 m}, 15 v/ 5 vi 1971, B. Malkin & B. Yuma leg. [ RMNH]; PERU: Loreto Dep .: 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. [ FSCA] ; 1 ♂, same but ACEER, 17 i 1993, P. Donahue leg. [ DRP] ; 1 ♀, Tamshiyacu-Tahuayo Reserve (4°23'43''S, 73°15'40''W), 30 vii 2009, T. Faasen leg. [ TF] ; 1 ♂, same but swamp (4°23'2''S, 73°14'38''W), 27 vii 2009 [ TF] ; 1 ♂, 1 ♀, same but tahuampa forest near Tabano lake (4°20'35''S, 73°15'28''W), 14 viii 2009 [ TF] ; 3 ♂, 1 ♀, same but forest with stream (4°18'27''S, 73°14'3''W), 15 ii 2010 [ TF] ; 1 ♂, same but (4°23'2''S, 73°14'57''W), 23 ii 2010 [ TF] ; 1 ♂, 1 ♀, same but 27 ii 2010 [ TF] ; 1 ♂, 1 ♀, same but (4°24'16''S, 73°19'18''W), 28 ii 2010 [ TF] ; 1 ♂, 1 ♀, Hamburgo , fogging from palms {5°12'S, 75°8'W, 117 m}, 10 v 1990, Erwin et al. leg. [ LB] ; 2 ♂, Iquitos {3°46'S, 73°15'W, 106 m}, iii 1936, G.G. Klug leg. [ BMNH] ; 1 ♀, same but iv 1936 [ BMNH] ; 15 ♂, 4 ♀, v 1936 [ BMNH] ; 1 ♂, 2 ♀, junction Amazon and Napo Rivers , caught in a boat in middle of river 25 viii 1989, S.W. Dunkle leg. [ FSCA] ; 2 ♂, Quistococha {3°50'S, 73°10'W, 150 m}, 17 iii 1984, R. Richards leg. [ FSCA] ; 2 ♀, Reserva Nacional Pacaya-Samiria (5°7'S, 75°28'W, 125 m), 16 v 1990, Erwin et al. leg. [ LB] ; 2 ♂, same but Quebrada Wiari (4°42'52''S, 74°24'15''W), 8 vi 2008, C. Beatty, A. Cordero & J. Hoffmann [ RWG] ; 1 ♂, 3 ♀, same but fogging, 12 v 1990 [ LB]; Ucayali Dep .: 1 ♂, 1 ♀, Boquerón del Padre Abad , NE of Tingo María {7°18'S, 76°49'W, 440 m}, 12 viii 1946, F. Woytkowski leg [ UMMZ] ; 1 ♂, same but 23 viii 1946 [ UMMZ] ; 7 ♂, same but 24 viii 1946 [ UMMZ] ; 3 ♂, same but 25 viii 1946 [ UMMZ]; Huánuco Dep .: 1 ♂, Biological Station Panguana, Yuyapichis River, right tributary of Pachitea River (9°37'S, 74°57'W), 28 ix/ 06 x 2000, E.-G. Burmeister, E. Diller, T. Kothe & W. Schlang leg. [ ZSM] ; 2 ♀, same but E side, 6–17 iv 2003 [ ZSM, in ETOH] ; 3 ♂, same but 18 ix / 10 iii 2005, leg. E.-G. Burmeister [ ZSM, in ETOH] ; 1 ♂, same but 260 m, 22 xi / 7 xii 2008, E. Diller leg. [ ZSM] ; 1 ♂, same but 260 m, 22 xi / 7 xii 2008, E. Diller leg. [ ZSM] ; 1 ♂ 1 ♀, same but 2/ 18 x 2009, E.-G. Burmeister leg. [ ZSM] ; 1 ♀, same but 3/ 18 x 2009, LB leg. [ ZSM]; Madre de Dios Dep .: 1 ♀, Explorer's Inn on Río Tambopata , 30 km SW Puerto Maldonado, bamboo thicket # 18 {12°50'S, 69°17'W, 300 m}, 1 viii 1979, M. Perkins & P. Donahue leg. [ DRP] ; 1 ♂, same but Reserva Nacional Tambopata , 30 km SW Puerto Maldonado, removed from ethanol (12°50'12''S, 69°17'36''W, 300 m), 6-14 xii 2003, T.H. Ogden et al. leg. [ DRP] ; 1 ♂, same but Reserva Río Tambopata, 30 km by air SW Puerto Maldonado , subtropical moist forest {12°30'S, 69°12'W, 290 m}, 27 xi 1979, J.B. Heppner leg. [ USNM] ; 1 ♀, same but 300 m, 25 ix 1981, D.L. Pearson [ DRP] ; 1 ♂, same but forest trail, 27 ix 1981 [ DRP] ; 1 ♂, same but swamp at 1,650 m on Swamp trail, 23 xii 1986, P. Donahue [ DRP] ; 1 ♂, 1 ♀, Manu National Park, Swamp , ca. 5 km S Pakitza (11°55'48''S, 71°15'18''W, 250 m), 19 ix 1988, O.S. Flint, Jr. [ USNM] ; 1 ♂, same but T2 to R2 to T1 to base camp, 17 ix 1989, J.A. Louton leg. [ USNM] ; 1 ♂, same but Trocha Swamp , 340 m, 13 x 1990, I. Bohórquez [ LB] ; 1 ♀, same but Reserve Zone, Trail 1, marker 12, log bridge (11°6'S, 71°18'W, 250 m), 16 ix 1989, N.E. Adams [ USNM] ; 1 ♀, same but marker 15, 1st stream (11°56'S, 71°18'W, 250 m), 18 ix 1989 [ USNM] ; 1 ♂, same but marker 18, seeps, 12 ix 1989 [ USNM]; BRAZIL: Acre State : 1 ♂, Tarauaca {8°10'S, 70°46'W}, xii 1956 [ RWG] .

Characterization. Head. Labrum mostly pale; black on dorsum of head limited; black on posterior surface of head surrounding occipital foramen extensive and extending on posterior margin on postocular lobes on dorsum of head ( Fig. 1s ii, 86% of examined males and 45% of examined females), or represented by a small spot limited to posterior surface of head on each side of foramen (7% males and 25% of females), or absent (7% of males and 30% of females); postocular lobes rounded ( Fig. 1s ). Thorax. Pronotum anterior lobe ( Figs. 4s ; 5s ) smooth; anterior and middle lobes of pronotum separated dorso-laterally by a groove; anterior margin of middle lobe of pronotum smooth; anterior area of propleuron with a sub-vertical c-shaped crest (c.) near anterior margin; pronotum posterior lobe entire and smoothly convex ( Figs. 4s iii), or slightly to markedly trilobed with medial lobe bilobed ( Figs. 4s ii, iv–v) or smoothly convex ( Figs. 4s i , vi–viii), with lateral lobes longer than 0.50 of medial lobe length and rounded; bases of mesanepisternal horns widely separated, arising at level of mesanepisternal plate bases or more externally, thin, directed laterally parallel to dorsum, as long as 0.25–2 times mesostigmal plate width, with tips pointed ( Fig. 5s ); mid-dorsal dark stripe limited to a narrow line along mid-dorsal carina to slightly less than 0.50 of mesanepisterna, parallel sided to slightly widening posteriorly ( Fig. 3s ); Pt short rectangular, with anterior and posterior sides slightly longer than distal side, to squarish, with posterior side about equal to distal side. Abdomen. Male genital lobe short, less than 0.50 of anterior hamule height; male genital lobe smoothly curved; male posterior hamule digit-like and small, with at most only tip surpassing ventral margin of genital fossa in lateral view; curvature of basal segment of genital ligula marked by a slight concave depression; genital ligula distal segment sub-rectangular, apex lacking an ectal fold and with a deep u-shaped incision with sides about as wide as incision ( Fig. 8s ); posterior margin of female S8 sternum smooth, lacking any denticles, spines, or processes ( Fig. 9r ); distal end of ovipositor reaching level between paraproct and cercus to tip of cercus; medial portion of male S10 postero-dorsal margin projected posteriorly, with a small u-shaped incision, lacking a dorsal prominence ( Figs. 10s ; 11s ; 12s ); male cercus in dorsal view ( Fig. 10s ) arched medially with a uniform curvature, narrowing to tip, tip pointed ending on a single tooth directed medio-ventrally; ratio of male cercus length to S10 maximum length in lateral view ( Fig. 12s ) 0.70–0.95; ratio of male cercus length to paraproct length in lateral view 0.45–0.50; male paraproct in lateral view about as wide at tip as medial section, with sides about straight, tip narrowing ventrally, pointed with single tooth directed medially.

Dimensions. Males (n 10): Hw 21 ± 1 [19.2–23.2]; abdomen 34.9 ± 1.4 [33.3–37.7]; total length 42 ± 1.6 [40.1–45.3]. Females (n 10): Hw 22 ± 1.2 [19.6–23.8]; abdomen 35.7 ± 0.9 [34–36.9]; total length 42.9 ± 1 [40.9 – 44.1].

Diagnosis. Metaleptobasis minteri shares mesanepisternal horns directed laterally only with M. lillianae , and dimorphic females of M. selysi , M. diceras and some M. bicornis ; however, horn bases are adjacent, or if separated, arising medially to bases of mesostigmal plates in M. bicornis , M. diceras , M. lillianae , and M. selysi ( Figs. 4b v –vii, p, z iii–iv), whereas in M. minteri they are widely separated, arising at level of medial bases of mesostigmal plates or more externally ( Figs. 4s ). Metaleptobasis minteri resembles M. prostrata by bases of mesanepisternal horns arising at level of mesanepisternal plate bases or more externally, but the horns are directed laterally in M. minteri ( Fig. 4s ) and antero-laterally in M. prostrata ( Fig. 4x ), anterior and middle lobes of pronotum are separated by a deep groove continued laterally on propleuron in M. minteri , whereas lateral margins of anterior lobe of pronotum are projected ventro-laterally forming a smooth L-shaped ridge extending to middle lobe in M. prostrata (lv.-p., Fig. 5x ). They further differ by genital ligula distal segment with a deep u-shaped incision in M. minteri ( Fig. 8s ) and a transverse apex in M. prostrata ( Fig. 8x ), male cercus about as long as 0.50 of paraproct length in M. minteri and as long as about 0.66 of paraproct length in M. prostrata , and male paraproct slightly and gradually curved medially at tip in dorsal view and with medial surface smooth in M. minteri ( Fig. 10s ), vs. curved abruptly medially at tip in dorsal view, and with an apical ridge on medial surface in M. prostrata ( Fig. 10x ).

Remarks. Metaleptobasis minteri displays the widest range of extension of dark areas on head and thorax, varying from posterior surface of head with extensive black areas surrounding the occipital foramen and extending dorsally on postocular lobes ( Fig. 1s ) to entirely pale, and mid-dorsal stripe varying from a narrow line along middorsal carina ( Figs. 3s iv, vii–viii) to a wide stripe almost as wide as about 0.50 of mesanepisterna ( Figs. 3s iii–ix). Holotype and allotype (from Primavera on Lake Taracoa, Ecuador) have a mid-dorsal stripe of intermediate width. Specimens from Lake Taracoa, Ecuador, collected together near the type locality, display a wide range of variability in the extension of dark areas ( Figs. 3s i –ii, vii–viii), and other examined specimens from Ecuador show narrow, intermediate, and wide stripes. Specimens from Boquerón, Peru, show the widest extension of mid-dorsal stripe ( Figs. 3s iii, ix). Specimens from Tamshiyacu, Peru, show wide stripes and narrow stripes with the slight indication of a wide stripe. Specimens from S Peru and the only specimen examined from S Colombia show narrow stripes ( Figs. 3s v –vi, x). As male genitalia, appendages, and pronotal diagnostic structures in both males and females are uniform throughout the entire geographic range of the species, independent of the extension of the dark areas, I consider that paler and darker specimens represent intraspecific variability.

I examined one incomplete male missing head and pronotum from Colombia (Caqueta Dep., Río Peneya {0°36'N, 74°24'W, 300 m}, 14–18 i 1969, W.D. Duckworth & R.E. Dietz leg., at USNM), which resembles M. minteri in general color pattern and morphology of appendages. It differs however by the mesanepisternal horns arising medially to medial bases of mesostigmal plates and represented by transverse bases only ( Fig. 3 af; vs. arising at level of mesostigmal plates bases or more externally, and with at least a short pointed free tip in M. minteri , 3s), genital ligula apex with sides lateral to medial incision pointed ( Fig. 8 af; vs. rounded in M. minteri , Fig. 8s ), and paraproct constricted proximally to tip ( Fig. 10 af; narrowing gradually to tip in M. minteri , Fig. 10s ). I believe this specimen represents an undescribed species, but refrain from describing it pending availability of complete specimens.

Habitat. Flooded forest, swamps, forest near small streams, creeks, oxbow lakes, ponds, and pools. Dennis Paulson observed many specimens, including several pairs, at a swamp and a few along the edge of Lake Taracoa in Ecuador, perching mostly within 1 m of ground or water (DRP pers. comm.).

Distribution. S Colombia, Ecuador, Peru, and W Brazil ( Fig. 14e).

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. ♀ ♂