Metaleptobasis lillianae Daigle, 2004

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 : 48-50

Metaleptobasis lillianae Daigle, 2004

Figs. 1p ; 3p ; 4p ; 5p ; 8p ; 9o ; 10p ; 11p ; 12p ; 14d

Metaleptobasis lillianae Daigle, 2004: 195–198 , figs. 1–5 (description of ♂ ♀, illustrations of ♂ head, mesanepisternal horn, S10, and ♀ S9–10);— Heckman (2008: 400, fig. 3.1.463; in key, reproduction of illustrations from Daigle 2004);— Garrison & von Ellenrieder (2009: 49; mention);— Garrison et al. (2010: 284; mention).

Metaleptobasis bicornis ? nec Selys, 1877 — Calvert (1909: 198–199; figs. 108–109 on Pl. vi; description of incomplete male missing S6–10; illustration of mesanepisternal horns).— Misidentification.

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

Types. Holotype ♂ *: BOLIVIA, Cochabamba Dep., Chapare Prov., Lake Tunari , 2.5 km W of Villa Tunari Gate on Hwy 4, at noon (17°0'20''S, 65°26'31''W, 265 m), 12 xi 2001, J.J. Daigle leg. [ FSCA]; 1 ♀ allotype *: in copula with holotype [ FSCA]; 1 ♂, 1 ♀ paratypes *: same but [ JJD]; 1 ♂ paratype: same but J. Johnson leg. [J. Johnson coll.]; 4 ♂ paratypes *: same but KJT leg. [ KJT]; 12 ♂ paratypes: same as holotype but 11 xi 2001 [ JJD].

Specimens examined. Total: 25 ♂, 12 ♀: 1 ♂ holotype, 1 ♀ allotype, 2 ♂ paratypes; ECUADOR, Sucumbíos Prov. : 1 ♀, Limoncocha , left or S fork of nature trail in forest {0°24'S, 76°36'W, 243 m}, 25 viii 1980, S.W. Dunkle leg. [ RWG]; PERU : 1 ♀, Trail B, Maleb [undecipherable] (250 m), 22 ix 1990 [ LB]; Loreto Dep .: 1 ♂, Yarinacocha, forest pond at La Cabaña {8°17'S, 74°37'W, 145 m}, 12 vii 1977, D.R. Paulson [ DRP] ; 1 ♀, same but forest trail, 3 ix 1972, D.L. Pearson leg. [ DRP] ; 1 ♂, same but 3 viii 1972 [ DRP] ; 1 ♂, same but 4 vi 1972 [ DRP] ; 1 ♂, same but 13 vi 1972 [ FSCA]; Huánuco Dep .: 3 ♂, Biological Station Panguana, by Yuyapichis River (9°37'S, 74°57'W), 3–18 x 1988, E.-G. Burmeister leg. [ ZSM]; Madre De Dios Dep .: 1 ♀, Manu, Quebrada Fortaleza, near Pakitza on Río Manu (12°7'S, 70°58'W, 250 m), 9 ix 1988, J. Louton leg. [ USNM] ; 1 ♂, Manu, Pakitza , near zone 3 (11°55'48''S, 71°15'18''W, 250 m), 24 x 1987, Jerry A. Louton leg. [ USNM] ; 5 ♂, same 17 ix 1989 [ USNM] ; 2 ♂, 1 ♀, same but swamp, ca. 5 km S Pakitza , 19 ix 1988, O.S. Flint, Jr. [ USNM] ; 2 ♂, 1 ♀, same but trail 2 (11°56'S, 1°18'W, 250 m), 20 ix 1988, O.S. Flint Jr. & Nancy E. Adam leg. [ USNM] ; 1 ♀, same but 17 ix 1988, O.S. Flint Jr. leg. [ USNM] ; 1 ♀, Tambopata Nature Reserve, Boca Río La Torre (12°50'18''S, 69°17'59''W, 300 m), 13 vii 1982, G. Lamas leg [ DRP] ; 1 ♀, same but 29 xi 1981 [ DRP] ; 1 ♂, Tambopata Nature Reserve , 30 km SW Puerto Maldonado, forest trail {12°30'S, 69°12'W, 300 m}, 17 ii 1982, R.C. Wilkerson leg. [ DRP] ; 1 ♂, same but 27 ix 1981, D.L. Pearson leg. [ DRP] ; 1 ♀, Tambopata Reserved Zone, Camp 5, lodge clearing (12°50'18''S, 69°17'59''W), 24 ix 1992, M. Butt leg. [ BMNH]; 15 km E Puerto Maldonado on Río Madre de Dios, Lodge Cuzco Amazónico {12°32'S, 69°3'W, 200 m}, 22 vi 1983, G.C. Hunter leg. [ CAS] ; 1 ♂, 10 km Puerto Maldonado on Río Madre de Dios, Trocha B {12°36'S, 69°5'W, 190 m}, 22 vi 1983, I. Bahorquez leg. [L. Börzsöny]; BOLIVIA, Santa Cruz Dep .: 1 ♀, Guarayos Prov., small pool, 3.6 km NE of Hwy 9, road from Santa María to Yaguaru (15°42'4''S, 63°26'6''W), 26 viii 2003, KJT leg. [ RWG]; BRAZIL, Mato Grosso State : 1 ♂ (missing S6–10), Chapada {15°26'46''S, 55°44'11''W, 700 m}, H.H. Smith leg. [ CMNH] .

Characterization. Head. Labrum mostly pale; black on dorsum of head limited; postocular lobes rounded ( Fig. 1p ). Thorax. Pronotum anterior lobe ( Figs. 4p ; 5p ) smooth; anterior and middle lobes of pronotum separated dorso-laterally by a groove (g.); anterior area of propleuron with a sub-vertical crest extending from ventral margin to ventral end of anterior lobe lateral margin, and a short lateral crest parallel to it (l.c.); antero-dorsal margin of middle lobe of pronotum smooth; pronotum posterior lobe in male trilobed, with medial lobe decumbent, smoothly convex, bilobed, or bluntly pointed ( Figs. 4p i –vii), in female bilobed, sinuous, or trilobed, with medial lobe directed dorsally or postero-dorsally ( Figs. 4p viii–xi), lateral lobes of pronotum posterior lobe longer than 0.50 of medial lobe length; mesanepisternal horns adjacent at base, directed laterally along distal free half, as long as about two times mesostigmal plate width, of medium thickness to thin, with tips bluntly pointed ( Figs. 4p ; 5p ); mid-dorsal dark stripe as wide as about 0.33 of mesanepisterna, parallel sides to slightly widening posteriorly ( Fig. 3p ); Pt squarish, with posterior side about equal to distal side, to short rectangular, with anterior and posterior sides slightly longer than distal side. Abdomen.—Male genital lobe short, less than 0.50 of anterior hamule height, 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 of genital ligula distal segment transverse, with a narrow ectal fold (e.f., Fig. 8p ); posterior margin of female S8 sternum smooth, lacking any denticles, spines, or processes ( Fig. 9o ); distal end of ovipositor reaching apex of paraproct to slightly longer, but shorter than cercus; medial portion of male S10 postero-dorsal margin ( Figs. 10p ; 11p ; 12p ) projected posteriorly, with a small medial longitudinal slit, with sides apressed and thickened forming curved dorsal prominence surrounding slit; male cercus in dorsal view ( Fig. 10p ) about straight, narrowing to tip which has a bicuspidate disto-ventral ridge (r.), with outer apical tooth pointed and inner tooth rounded ( Figs. 10p ; 11p ); ratio of male cercus length to S10 maximum length in lateral view about 0.66; ratio of male cercus length to paraproct length in lateral view 0.47–0.50; male paraproct in lateral view ( Fig. 12p ) with sides straight to slightly arched, medial section of uniform width, slightly widened at tip.

Dimensions. Males (n 10): Hw 22.8 ± 0.5 [22–23.7]; abdomen 39 ± 1 [37.7–40.5]; total length 46.6 ± 1.1 [45– 48.2]. Females (n 10): Hw 24.3 ± 0.8 [23.3–25.8]; abdomen 38.8 ± 1.2 [37–41.1]; total length 46.3 ± 1.4 [45–49.4].

Diagnosis. Metaleptobasis lillianae shares head dorsum with black pattern limited to isolated stripes, base of mesanepisternal horns adjacent, and presence of two sub-vertical crests on anterior portion of propleuron only with M. diceras , M. longicauda , M. silvicola , and M. truncata . In M. diceras and M. lillianae the anterior crest originates as a continuation of a longitudinal latero-ventral crest on propleuron extended dorsally and is separated from anterior margin of anterior lobe of pronotum, while in M. longicauda , M. silvicola , and M. truncata it originates as a ventral extension of anterior margin of anterior lobe of pronotum. Metaleptobasis lillianae differs from all of them by distal free portion of horns directed laterally ( Figs. 4p ; 5p ; vs. directed antero-dorsally or reduced, Figs. 4f ; 5f, q , aa, ad) and pterothoracic mid-dorsal stripe about as wide as 0.33 of mesepisterna ( Fig. 3p ; vs. as wide as 0.14–0.25 of mesepisterna, Figs. 3f, q , aa, ad). It can be further differentiated from M. diceras by genital ligula distal segment sub-rectangular in ventral view ( Fig. 8p ; vs. pear-shaped, Fig. 8f ) and male cercus about straight and narrowing to tip in dorsal view ( Fig. 10p ; curved medially and slightly widened subapically in M. diceras , Fig. 8f ), and from M. longicauda , M. silvicola , and M. truncata by anterior and middle lobes of pronotum separated dorso-laterally by a groove (g., Fig. 5p ; vs. separated by a narrow fissure, f., Figs. 4q , aa, ad; 5q, aa, ad). Metaleptobasis lillianae shares only with females of M. selysi and some heteromorphic females of M. bicornis the combination of mesanepisternal horns adjacent at base and with distal free portion directed laterally. It differs from them by the lateral margins of pronotum anterior lobe not projected postero-ventrally forming a ridge ( Fig. 5p ; projected postero-ventrally forming a ridge in M. bicornis , Figs. 2 iv; 5b) and lateral portion of anterior lobe of pronotum not inflated ( Fig. 5p ; inflated in M. selysi , in., Figs. 4z ; 5z ).

All females of M. lillianae share the shape and orientation of mesanepisternal horns with males and differ in the shape of hind lobe of pronotum, and both characters show a considerable degree of plasticity.

Habitat. Forest near rivers, small ponds, and pools.

Distribution. Ecuador, Peru, Bolivia, and SW Brazil ( Fig. 14d).

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 2. Head and thorax. (a) i. M. bicornis, female holotype, dorsal view; (a) ii. M. bicornis, male, holotype of M. mauritia, dorsal view; (a) iii. M. bicornis, female holotype, dorsal view; (a) iv. M. bicornis, female holotype, lateral view; (b) i. M. brysonima, male holotype, dorsal view; (b) ii. M. brysonima, male holotype, lateral view. l-v.p.: latero-ventral margin of anterior lobe projected ventro-posteriorly; t.: tubercle.

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.