Passalinae

Fonseca, Claudio Ruy Vasconcelos Da, Barbosa, Márcio Luís Leitão & Fernandez, Maria Fernanda Souza, 2011, A hypothetical evolutionary history of passalid beetles narrated by the comparative anatomy of the hindgut (Coleoptera: Passalidae), Zootaxa 3012, pp. 1-20: 14

publication ID

10.5281/zenodo.200834

persistent identifier

http://treatment.plazi.org/id/E922B809-FFF4-FF9F-66CB-CF22FC69FA2D

treatment provided by

Plazi

scientific name

Passalinae
status

 

Subfamily Passalinae  Leach, 1815 (subfamily here redefined to include a smaller group of taxa)

This branch was supported by one synapomorphy:

[Character 17] Ileum with symmetrical, lateral diverticula (0); asymmetrical (1). Unambiguous optimization (ci = 100; ri = 100).

At this level, lateral diverticula were asymmetrical in numbers and size on both surfaces of the ileum, giving it a more flattened appearance ( Figs 6View FIGURE 6, 7View FIGURE 7). This character state was apomorphic.