Leptobasis

Garrison, Rosser W. & Ellenrieder, Natalia Von, 2010, Redefinition of Leptobasis Selys with the synonymy of Chrysobasis Rácenis and description of L. mauffrayi sp. nov. from Peru (Odonata: Coenagrionidae), Zootaxa 2438, pp. 1-36 : 5

Key to males of Leptobasis

1. Metafemur with modified inner row of spurs, the most proximal one strongly differentiated and at least twice as long as remainder of spurs ( Figs. 5 a, b); genital ligula distal segment with paired lateral chitinized flap-like processes as long as segment and appressed against its ental surface ( Figs. 10 a, 11a, c) ...................................... 2

1'. Metafemur with unmodified inner row of spurs, the proximal one not differentiated and shorter than remainder of spurs ( Fig. 5 ); genital ligula distal segment with paired lateral chitinized flap-like processes short, half as long as segment, and visible in lateral view ( Figs. 9 c, 12c, 13c, 14a, 15a, 16a) ....................................................... 3

2(1'). Cercus with a rounded, foliate process distally ( Fig. 20 b); paraproct longer than cercus in lateral view ( Fig. 21 b); Cuba, Mexico, Belize, and Guatemala ( Fig. 27 ) .............................................................................. L. candelaria

2'. Cercus lacking a rounded, foliate process distally ( Fig. 20 c); paraproct shorter than cercus in lateral view ( Fig. 21 c); Costa Rica and W Mexico ( Fig. 27 ) ............................................................................. L. guanacaste

3(1'). Cercus as wide as long with posterior half bent ventrally into a broadly based triangular tooth ( Figs. 20 e, g, h; 21e, g, h); apical margin of genital ligula concave in ectal view ( Figs. 13 b, 15b), with fleshy papillae on ectal ( Fig. 16 b) or latero-ectal sides ( Figs. 13 b, 15b) of apex ............................................................................ 4

3'. Cercus longer than wide, posterior half not bent ventrally ( Figs. 20 a, d, f; 21a, d, f), apical margin of genital ligula transverse or rounded in ectal view ( Figs. 9 b, 12b, 14b); fleshy papillae lacking on ectal or latero-ectal sides of apex ( Figs. 9 b, 12b, 14b)...........................................................................................................................5

Figures

FIGURE 5. Male metafemur. (a) Leptobasis candelaria, Belize, Toledo, Monkey River; (b) L. guanacaste, paratype, Costa Rica, Guanacaste, Hacienda Taboga; (c) L. vacillans, Dominican Republic, Jarabacoa.

FIGURE 20. Male S 10, medio-dorsal view. (a) Leptobasis buchholzi, Colombia, Puerto Colombia; (b) L. candelaria, Belize, Toledo, Monkey River; (c) L. guanacaste, holotype, Costa Rica, Guanacaste, Hacienda Taboga; (d) L. lucifer, Costa Rica, Heredia, Finca La Selva; (e) L. mauffrayi, holotype, Peru, Madre de Dios, Pakitza; (f) L. melinogaster, USA, Texas, Hidalgo, Santa Ana Natural Wildlife Reserve; (g) L. raineyi, Trinidad, St. Andrew, 1 mi W of Cumuto; (h) L. vacillans, Puerto Rico, Mayagüez, Mayagüez.

FIGURE 21. Male S 10, lateral view. (a) Leptobasis buchholzi, Colombia, Puerto Colombia; (b) L. candelaria, Belize, Toledo, Monkey River; (c) L. guanacaste, holotype, Costa Rica, Guanacaste, Hacienda Taboga; (d) L. lucifer, Costa Rica, Heredia, Finca La Selva; (e) L. mauffrayi, holotype, Peru, Madre de Dios, Pakitza; (f) L. melinogaster, USA, Texas, Hidalgo, Santa Ana Natural Wildlife Reserve; (g) L. raineyi, Trinidad, St. Andrew, 1 mile W of Cumuto; (h) L. vacillans, Puerto Rico, Mayagüez, Mayagüez.

FIGURE 27. Distribution of Leptobasis buchholzi, L. candelaria, L. guanacaste, L. lucifer, and L. melinogaster.

FIGURES 9 - 12. Genital ligula, (a) lateral view; (b) ectal view; (c) latero-ental view. 9: Leptobasis buchholzi, Colombia, Puerto Colombia. 10: L. candelaria, Belize, Toledo, Monkey River. 11: L. guanacaste, holotype, Costa Rica, Guanacaste, Hacienda Taboga; 12: L. lucifer, Mexico, Campeche, Laguna Zoh.

FIGURES 13 - 16. Genital ligula, (a) lateral view; (b) ectal view; (c) latero-ental view. 13: Leptobasis mauffrayi, paratype, Peru, Huanuco, N of Cucharas; 14: L. melinogaster, USA, Texas, Hidalgo, Santa Ana Natural Wildlife Reserve; 15: L. raineyi, Trinidad, St. Andrew, 1 mile W of Cumuto; 16: L. vacillans, Dominican Republic, La Altagracia, Nisibon.