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 : 5-6

Key to females of Leptobasis

1. Posterior margin of prothorax continuous, evenly rounded ( Figs. 2 e, g, h), or with lateralmost margin sharply bent ventrad and lacking a smaller inferior lobe below in dorsal view ( Fig. 2 c) ............................................. 2

1'. Posterior margin of prothorax not continuous, with lateral lobes partially overlying median lobe resulting in a partial ( Fig. 2 b, f) or complete ( Figs. 2 a, d) supplementary inferior lobe ...................................................... 5

2(1'). Raised posterior lobe of prothorax forming a narrow rim of the same length throughout and with lateralmost margin sharply bent ventrad ( Fig. 2 c); Costa Rica and W Mexico ( Fig. 27 ) .............................. L. guanacaste

2'. Raised posterior lobe of prothorax with middle portion much longer than lateral portion and with lateralmost margin not sharply bent ventrad ( Figs. 2 e, g, h)........................................................................................ 3

Figures

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