Leptobasis guanacaste Paulson 2009

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 : 7

Leptobasis guanacaste Paulson 2009

Figs. 1 b, 2c, 3c, 4a, 5b, 6c, 11, 19b, 20c, 21c, 22a, 23a, b, 27

Leptobasis n. sp. Paulson 1982: 263 (as n. sp. from Costa Rica)

Leptobasis guanacaste Paulson 2009b: 63 (holotype 3, 63; allotype Ƥ, Hacienda Taboga, Guanacaste Prov., Costa Rica, 0 2 viii 1967 and 14 vii 1967, both in FSCA); — Bailowitz, Danforth, & Deviche 2009: 16 (Sinaloa, Mexico).

Specimens examined. Total: 5 3, 10 Ƥ: 1 3, 1 Ƥ, Costa Rica, Guanacaste Prov., Hacienda. Taboga, 10°19'48"N, 85°12'0"W, 14 vii 1966, leg. D.R. & M.L. Paulson; 1 3, 1 Ƥ, same data but 17 ix 1966; 1 3, 1 Ƥ, same data but 2 viii 1967 (paratypes, all deposited in RWG); 2 3, 7 ƤƤ, same data but 25-26 vii 1967, leg. Oliver S. Flint, Jr. & M.A. Ortiz B., deposited in USNM.

Diagnosis. Similar to L. candelaria by male metafemoral armature and female ovipositor morphology; males are diagnosed under that species. Female unique in morphology of its prothoracic hind lobe, which is of even width throughout and with sharply decumbent margins at side diverging from carinate propleural margin ( Fig. 2 c), versus an expanded middle lobe in all other species ( Fig. 2 a, d–h), and lacking a sharply decumbent lateral margin in L. candelaria ( Fig. 2 b). The narrowly triangular postocular spots ( Fig. 1 b) and lack of a dark humeral stripe are also unique for fully mature L. guanacaste .

Dimensions. Males (n 10, data from Paulson 2009b): Hw 14.7–16.0 (15.5); abdomen 26.7–29.5 (28.2); total length 31.5–35.0 (33.2). Females (n 10; mean in parenthesis [data from Paulson 2009b]): Hw 16.3–18.3 (17.0); abdomen 23.8–27.0 (24.9); total length 28.0–32.5 (30.2).

Distribution. Guanacaste Province, Costa Rica, and Sinaloa State, Mexico ( Fig. 27 ).

Figures

FIGURE 1. Head, dorsal view of right half. (a) Leptobasis candelaria, male, Mexico, Veracruz, E of Córdoba; (b) L. guanacaste, male paratype, Costa Rica, Guanacaste, Hacienda Taboga; (c) L. mauffrayi, male holotype, Peru, Manu, Pakitza; (d) L. vacillans, male, Dominican Republic, La Vega, S of La Vega.

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