Acylophorus Nordmann 1837
Creators: name: Janák, Jiří
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Acylophorus

description: Key to Afrotropical species groups of Acylophorus
(based on Lott 2010, extended and modified)
1 Disc of pronotum covered by sparse, semi-erect pubescence except sometimes for central glabrous strip (Figs. 26, 27 in Lott 2010); pubescence on head covering most of upper surface except for central glabrous strip; apex of styles at tip of abdomen devoid of bristles and easily visible (Fig. 133 in Lott 2010). Continental sub-Saharan Africa............ kambuiensis group
- Disc of pronotum glabrous except for a pair of setae; pubescence on head restricted to small area behind eyes; apex of styles at tip of abdomen covered by bristles and more or less invisible (Fig. 30 in Lott 2010)................................. 2
2 Pronotum covered by microsculpture consisting of dense micro-punctures visible at 40x magnification. Continental sub-Saharan Africa, Madagascar ................................................................... densipennis group
- Pronotum shining either without microsculpture or, much more rarely, with scattered and sparse micro-punctures......... 3
3 Last two segments of maxillary palpi without dense pubescence. Madagascar....................... derougemonti group
- At least last segment of maxillary palpi densely pubescent..................................................... 4
4 Last two segments of maxillary palpi densely pubescent (Figs. 70–74 in Lott 2010)................................. 5
- Only last segment of maxillary palpi pubescent, penultimate segment glabrous (Figs. 51–69 in Lott 2010); two pairs of interocular setae present on head............................................................................... 6
5 Three pairs of interocular setae present on head. Continental sub-Saharan Africa.................. trigonocephalus group
- Two pairs of interocular setae present on head. Madagascar....................................... muscorum group
6 Head larger, pronotum no more than 1.8x wider than head (Figs. 1–8 in Lott 2010); head strongly and abruptly depressed at base underneath (Fig. 29 in Lott 2010); pubescence behind eyes denser and more extensive; genae not expanded forward in front of eyes. Metatarsi with four first segments with short terminal setae, last segment with long empodial setae (Figs. 9, 10). Continental sub-Saharan Africa, Madagascar.................................................... orientalis group
- Head smaller, pronotum at least 1.9x wider than head (Figs. 18–20 in Lott 2010); ventral depression at base of head shallow (Fig. 108 in Lott 2010); pubescence behind eyes sparser and less extensive; genae expanded forward in front of eyes. Metatarsi with four first segments with long terminal setae, last segment with short empodial setae (Figs. 87, 88). Continental sub-Saharan Africa, Madagascar, Mascarene Islands (Mauritius)................................................ salifi group
description: Published as part of Janák, Jiří, 2018, Revision of the genus Acylophorus Nordmann, 1837 from Madagascar and Mascarene Islands (Coleoptera: Staphylinidae: Staphylininae: Acylophorina), pp. 151-191 in Zootaxa 4462 (2) on page 153, DOI: 10.11646/zootaxa.4462.2.1, http://zenodo.org/record/1441457