Mimosticus

Brunke, Adam & Solodovnikov, Alexey, 2014, Male secondary sexual characters resolve taxonomic uncertainty: five new species and a review of the formerly monotypic rove beetle genus Mimosticus Sharp (Coleoptera: Staphylinidae: Staphylininae), Zootaxa 3893 (1) : -

publication ID	https://doi.org/ 10.11646/zootaxa.3893.1.2
publication LSID	lsid:zoobank.org:pub:E5EC4E8B-A59E-478D-8A7A-21626F312564
DOI	https://doi.org/10.5281/zenodo.6126384
persistent identifier	https://treatment.plazi.org/id/826487FB-E877-FFCB-60FC-FA693799FDFC
treatment provided by	Plazi
scientific name	Mimosticus
status

Treatment

Key to the species of Mimosticus View in CoL

1 In dorsal view, neck constriction with nuchal ridge not visible ( Fig. 3 View FIGURE 3 A–B); eyes usually larger, in dorsal view 2.4–3.6 times as long as tempora (usually tempora appear distinctly less than half the length of eye as in Fig. 3 View FIGURE 3 A–B); antennomere 4 shorter, 1.5–2.0 times as long as wide ( Fig. 2 View FIGURE 2 A–B)................................................................. 2

- In dorsal view, neck constriction with nuchal ridge distinct laterally ( Fig. 3 View FIGURE 3 C–D); eyes usually smaller, in dorsal view 1.6–2.6 times as long as tempora (usually tempora appear at least as long as half the length of eye as in Fig. 3 View FIGURE 3 C–D); antennomere 4 longer, 2.2–3.0 times as long as wide ( Fig. 2 View FIGURE 2 C–D).............................................................. 3

2 Elytra bright metallic blue or bluish-green ( Fig. 1 View FIGURE 1 A); abdominal segment VIII markedly bicolored, orange to yellow in apical half, contrasting with dark metallic remainder of abdomen ( Fig. 1 View FIGURE 1 A); pronotum distinctly transverse ( Fig. 3 View FIGURE 3 A); antennomeres shorter ( Fig. 2 View FIGURE 2 A); eyes slightly shorter in dorsal view, 2.4–2.8 times as long as tempora ( Fig. 3 View FIGURE 3 A); aedeagus in parameral view: paramere wider apically compared to subapically, apex rounded ( Fig. 8 View FIGURE 8 A), internal sac with less pronounced sclerotized structures ( Fig. 9 View FIGURE 9 A). Known from Costa Rica, Panama, and scattered localities in the South American Andes.................................................................................................... M. viridipennis, Sharp View in CoL

- Elytra dull, metallic greyish blue ( Fig. 1 View FIGURE 1 B); abdominal segment VIII not or only subtly bicolored, apical margin at most slightly paler than rest of abdomen ( Fig. 1 View FIGURE 1 B); pronotum about as wide as long ( Fig. 3 View FIGURE 3 B); antennomeres longer ( Fig. 2 View FIGURE 2 B); eyes slightly longer in dorsal view, 3.0–3.5 times as long as tempora ( Fig. 3 View FIGURE 3 B); aedeagus in parameral view: paramere gradually tapering towards the apex, apex slightly pointed ( Fig. 8 View FIGURE 8 E), internal sac with more pronounced sclerotized structures ( Fig. 9 View FIGURE 9 B). Known only from the South American Andes......................... M. tenuiformis Brunke and Solodovnikov View in CoL , sp. n.

3 Elytra with bright, gold-green metallic reflection ( Fig. 1 View FIGURE 1 C); eyes distinctly smaller, in dorsal view 1.6–2.0 times as long as tempora ( Fig. 3 View FIGURE 3 C); antennomeres 7–10 wider ( Fig. 2 View FIGURE 2 C)................... M. aeneipennis Brunke and Solodovnikov View in CoL , sp. n.

- Elytra with bright blue, bluish purple or brassy-purple metallic reflection ( Fig. 1 View FIGURE 1 D); eyes distinctly larger, in dorsal view 2.2–3.0 times as long as tempora ( Fig. 3 View FIGURE 3 D); antennomeres 7–10 narrower ( Fig. 2 View FIGURE 2 D) … sharpi View in CoL species complex........... 4

4 Male tergite VIII with small, distinct notch ( Fig. 5 View FIGURE 5 A); male sternite IX with only vague constriction halfway along its length ( Fig. 6 View FIGURE 6 F); male tergite X with truncate apex ( Fig. 7 View FIGURE 7 F); internal sac of aedeagus with copulatory sclerite weakly developed and small ( Fig. 9 View FIGURE 9 G)..................................................... M. latens Brunke and Solodovnikov View in CoL , sp. n.

- Male tergite VIII with evenly rounded apex; male sternite IX with distinct constriction forming an elongate basal ‘stem’ ( Fig. 6 View FIGURE 6 D–E); male tergite X with apex more rounded ( Fig. 7 View FIGURE 7 D–E); internal sac of aedeagus with copulatory sclerite well developed as a plate ( Fig. 9 View FIGURE 9 E–F, ‘b’).............................................................................. 5

5 Male tergite X less elongate, apex with setae finer and shorter ( Fig. 7 View FIGURE 7 D); ‘stem’ of male sternite IX broader, stem distinctly shorter than apical half ( Fig. 6 View FIGURE 6 D); apex of male sternite VIII more acute, narrowing at a point closer to the base ( Fig. 4 View FIGURE 4 D); internal sac of aedeagus with broad, emarginate copulatory sclerite ( Fig. 9 View FIGURE 9 E, ‘b’).... M. sharpi Brunke and Solodovnikov View in CoL , sp. n.

- Male tergite X more elongate, apex with setae coarser and longer, more uniform ( Fig. 7 View FIGURE 7 E); ‘stem’ of male sternite IX narrower, stem nearly as long to equally as long as apical half ( Fig. 6 View FIGURE 6 E); apex of male sternite VIII more obtuse, narrowing at a point closer to the apex ( Fig. 4 View FIGURE 4 E); internal sac of aedeagus with narrow, non-emarginate copulatory sclerite ( Fig. 9 View FIGURE 9 F, ‘b’)..................................................................... M. pseudosharpi Brunke and Solodovnikov View in CoL , sp. n.