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ALENCAR, ISABEL D. C. C; AZEVEDO, CELSO O
Systematic entomology, 2013, 2013-01, January 2013, 2013-01-00, 20130101, Volume: 38, Issue: 1Journal Article
Epyrini (Epyrinae) are the largest and morphologically most diverse group within Bethylidae. Evans' conception of Epyrini induces misclassification of several taxa and their diagnostic features, such as median lobe of clypeus projected, and fovea in lateroposterior angle of propodeal disc, are insufficient to place species in the tribe. No previous comprehensive cladistic study has recovered Epyrini as a clade, and no synapomorphies are reported for the tribe, suggesting that the group is artificial. We infer a phylogeny based on 391 informative morphological characters for 42 terminal taxa (31 ingroup, 11 outgroup). Monophyly of Epyrini is supported by a petiole with fused root and body as an autapomorphy. Anisepyris Kieffer, Laelius Ashmead, Holepyris Kieffer, Formosiepyris Terayama, Disepyris Kieffer, Bakeriella Kieffer and Trachepyris Kieffer were retrieved as monophyletic. Epyris Westwood and Chlorepyris Kieffer are paraphyletic. The addition of new characters was essential to define Epyrini, and the ventral region of the mesosoma, petiole and male genitalia may help to better understand genera and species limits. All resulting trees indicate that Epyrinae are polyphyletic. Tribes Epyrini and Sclerodermini are revalidated to subfamily status.
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