Cladistic analysis of the Ulmeritus-Ulmeritoides group (Ephemeroptera: Leptophlebiidae) with descriptions of five new species of Ulmeritoides

DOMINGUEZ, EDUARDO

JOURNAL OF THE NEW YORK ENTOMOLOGICAL SOCIETY

Lugar: New York; Año: 1995 p. 15 - 38

0028-7199

A cladistic analysis of the species of the genera Ulmeritus and Ulmeritoides is performed. Five new species of Ulmeritoides are described: U. fidalgoi n. sp. from male and female imagos and U. misionensis n. sp.from male and female imagos and nymphs from Argentina, U. spinulipenis n. sp. from male imagos from Uruguay, and U. guanacaste n. sp and U. tifferae n. sp. from male imagos and nymphs collected in Costa Rica. The generic diagnosis of Ulmeritoides is modified to include all known species. Further evidence from the cladistic analysis supports the synonymy of Pseudulmeritus with Ulmeritoides, the monophyly of Ulmeritus and Ulmeritoides, and their status as sister groups.