Systematics and biogeography of the Indo-Malaysian endemic Neochauliodes sundaicus species-group (Megaloptera: Corydalidae)

Abstract

The Neochauliodes sundaicus species-group is newly proposed, containing six species and endemic to Indo-Malaysia. All six species are described and illustrated, including two new species: Neochauliodes parvus Liu, Hayashi & Flint, sp. n. and N. peninsularis Liu, Hayashi & Flint, sp. n. Full species status is given to N. maculatus Stitz, 1914, stat. n. and N. borneensis van der Weele, 1909, stat. n. A cladistic analysis is conducted to reconstruct the species level phylogeny of the N. sundaicus group based on the morphological data. Combining the present morphological phylogeny and historical geography of Indo-Malaysia, the origin and speciation of this species-group is briefly discussed. © 2003 Institute of Entomology.