Akrobothrus, Barman & Michat & Alarie & Wolfe, 2007

Barman, E. H., Michat, M. C., Alarie, Y. & Wolfe, G. W., 2007, Figs. 16 – 17. 16 in A Description of the First Instar of Hoperius planatus Fall, 1927 (Coleoptera: Dytiscidae: Colymbetinae: Colymbetini), with Phylogenetic Implications, The Coleopterists Bulletin 24 (2), pp. 318-325 : 321

Akrobothrus , new genus

( Figs. 1–4)

Type species. Akrobothrus ecuadoriensis , new species.

Diagnosis. Akrobothrus is distinguished from other Bothrosternina genera by the following characters ( Table 1): Elytra depressed around the scutellum. Antennal club 3 segmented with first suture procurved and second suture recurved, elongate and parallel-side ( Fig. 1). Lateral margins of pronotum costate. Prothoracic intercoxal piece with a transverse, lateral subcarinate ridge.

Included species. This is currently a monotypic genus, including the 1 species ecuadoriensis from Ecuador.

Etymology. This genus is named Akrobothrus (gender masculine) from the Greek words akron (neuter), meaning ‘‘top’’ and bothrus (masculine), meaning ‘‘trench’’ or ‘‘pit.’’