Spanglerelmis Polizei & Costa & Bispo 2022, gen. nov.
Creators: name: Polizei, Thiago Tadeu Silva
name: Costa, Lucas de Souza Machado
name: Bispo, Pitágoras da Conceição
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elmidae
Spanglerelmis

description: Key to the species of Spanglerelmis Polizei & Bispo gen. nov.
1. Protibia not swollen (Fig. 2); hypomeron with a belt of tomentum near the suture (Fig. 7C); apical tarsomere as long as the four-preceding combined; abdominal ventrite 1 with a pair of carinae, ventrite 5 strongly emarginate laterally (Fig. 2B)................................................................................ ..................................................................... Spanglerelmis xiririca Polizei & Bispo gen. et sp. nov.
– Protibia swollen (Figs 1B, F, 9A–B); hypomeron without a belt of tomentum near the suture (Figs 1B, F, 9B); apical tarsomere shorter than the four-preceding combined; abdominal ventrite 1 without carinae, ventrite 5 moderately emarginate laterally (Fig. 9B) ........................................................... 2
2. Elytron with first puncture on interval IV bigger and deeper than any others (Fig. 9A); setae of the protarsomeres no longer than on the other legs (males); metatibia without spur; phallobase 1.5× as long as penis, approximately 2.5× as long as wide; penis 4× as long as wide (9C– D) ................................................................. Spanglerelmis timburi Polizei & Bispo gen. et sp. nov.
– Elytron with first puncture on interval IV not bigger and deeper than any others (Fig. 1A, E); setae of the protarsomeres longer than on the other legs (males); metatibia with a curved spur (males); phallobase 2× as long as penis, approximately 4× as long as wide; penis 3× as long as wide ............................................................ Spanglerelmis femoralis (Hinton, 1940) gen. et comb. nov.
Biological notes
Spanglerelmis is only recorded from the Atlantic rainforest (Fig. 10). Most of the material was collected by the authors during expeditions to unimpacted streams in the São Paulo State, Brazil, in the years 1999 to 2000 and 2013, where a high diversity of aquatic beetles, mostly of the family Elmidae, was collected. Samples containing the two new species were collected from streams with high oxygen concentrations and rocky bottoms (Fig. 10B–E) in Parque Estadual Caverna do Diabo (Eldorado) (Fig. 10B); Parque Estadual Intervales (Ribeirão Grande) (Fig. 10C); the region of Echaporã (Fig. 10D); and the region of Timburi (Fig. 10E). These streams are in basins with undisturbed vegetation and in elevations that range from 452 m to 820 m. In general, the specimens were collected in riffles at a depth of 0.1 m to 0.5 m, in streams with different slopes and with alternating pools and riffles (Fig. 10B–E).
description: Published as part of Polizei, Thiago Tadeu Silva, Costa, Lucas de Souza Machado & Bispo, Pitágoras da Conceição, 2022, Spanglerelmis, a new genus of Elmidae (Insecta: Coleoptera) from Brazil with new species and biological notes, pp. 33-56 in European Journal of Taxonomy 813 (1) on page 52, DOI: 10.5852/ejt.2022.813.1731, http://zenodo.org/record/6468145