Revision of the genus Acylophorus Nordmann, 1837 from Madagascar and Mascarene Islands (Coleoptera: Staphylinidae: Staphylininae: Acylophorina) Janák, Jiří Zootaxa 2018 2018-08-27 4462 2 151 191 9W7M Janák, 2018 Janák 2018 [151,370,487,513] Insecta Staphylinidae Acylophorus GBIF Animalia Coleoptera 17 168 Arthropoda species hova sp. nov.     Typelocality. Madagascar, Ankarafantsika National Park, 16 18' 10.7", S 46 48'47.1" E.   Typematerial. Holotype ♂:  MADAGASCAR: “AKF/08/2011 MADAGASCARNW, ANKARAFANTSIKA N.P.; 23.iv.2011, S16°18’10.7‘‘E46°48’47.1‘‘; 81m, sifting forest litter, Winkler app. extr., L.S.Rahanitriniaina & R.Raveloson lgt.”, „HOLOTYPUS Acylophorus hova  sp. nov., J. Janák det. 2017” (MMBC).     Paratypes: 3 ♂: same data as holotype ( 2 ♂: MMBC, 1 ♂: JJRC);  4 ♂, 3 ♀: “AKF/05/2011 MADAGASCARNW, ANKARAFANTSIKA N.P.;  23.iv.2011, S16°18’05.1‘‘ E46°49’08.3‘‘;  89m, sifting forest litter, Winklerapp. extr., L.S.Rahanitriniaina& R.Ravelosonlgt. ” ( 2 ♂, 2 ♂: MMBC, 2 ♂, 1 ♀: JJRC);  1 ♀: “AKF/07/2011 MADAGASCARNW, ANKARAFANTSIKA N.P.;  23.iv.2011, S16°18’07.8‘‘ E46°48’59.5‘‘;  79m, sifting forest litter, Winklerapp. extr., L.S.Rahanitriniaina& R.Ravelosonlgt.” ( MMBC);  1 ♀: “AKF/09/2011 MADAGASCARNW, ANKARAFANTSIKA N.P.;  23.iv.2011, S16°18’09.9‘‘ E46°48’39.3‘‘;  87m, sifting forest litter, Winklerapp. extr., L.S.Rahanitriniaina& R.Ravelosonlgt.” ( MMBC);  1 ♀: “AKF/11/2011 MADAGASCARNW ANKARAFANTSIKA N.P.;  24.iv.2011, S16°18’09.0‘‘ E46°48’55.6‘‘;  83m, sifting forest litter, Winklerapp. extr., L.S.Rahanitriniaina& R. Ravelosonlgt.” ( MMBC). All paratypeswith additional label: „ PARATYPUS Acylophorus hova  sp. nov., J. Janákdet. 2017”.  Description.Body length 6.5–7.7 mm(M=7.0 mm, HT= 7.3 mm), forebody length 2.4–2.8 mm(M= 2.6 mm, HT= 2.7 mm). Body dark brown ( Fig. 78), pronotum reddish-brown with reddish margins, apical margin of elytra reddish-brown, abdominal tergites brown, markedly bluish iridescent; antennae brown with first segment almost completely and sometimes last 1–2 segments partly reddish; legs reddish, tarsi and maxillary palpi light reddish. Head suboval ( Fig. 79), about as long as wide (L/W=0.94–1.05, M=0.98, HT=0.99), widened behind eyes, with two pairs of interocular setae. Temples markedly shorter than eyes (LT/LE=0.60–0.74, M=0.68, HT=0.60). Dorsal side of head shining, without micropunctures. Only sparse pale grey pubescence behind eyes. Four postocular setae visible on each side, additional seta on hind margin of eye absent. Mandibles with large teeth ( Fig. 80). Maxillary palpi with terminal segment wide and quite short, pubescent, asymmetric, as wide as or only slightly wider and longer than glabrous penultimate segment which is triangular ( Fig. 81). First segment of antenna slightly longer than next five; segments 1 to 4 elongate, segment 5 longer than wide (L/W=1.04–1.37, M=1.20, HT=1.38), segments 6 as long as wide, segments 7–9 transverse, segment 10 markedly transverse (R=0.73–0.83, M=0.77, HT=0.83). Pronotum ( Fig. 79) slightly transverse (W/L=1.12–1.22, M=1.17, HT=1.17), markedly widened behind with sides slightly rounded, widest in basal half, shining, without micropunctures. One pair of dorsal setae and one pair of lateral setae. Marginal setae short. Elytra markedly transverse (R=1.42–1.74, M=1.53, HT=1.74) with short, pale, but not shining pubescence arising from dense aspirate punctures. Apical fringe of bristles slightly longer than pubescence on other parts of the elytra. Abdominal tergites with short, moderately dense pubescence, interstices in transverse direction on middle part of tergite IV about two times as large as diameter of punctures. Meso- and metatarsi with short empodial setae, shorter than claws ( Figs. 87, 88). Male (n=5). Sternite 9 long and narrow ( Figs. 90), apex of tergite 10 narrowly rounded, with very long apical setae ( Fig. 89). Aedeagus ( Figs. 82–86) 0.76–0.85 mmlong (M= 0.79 mm, HT= 0.78 mm). Parameres bilobed, lobes markedly separated, sensory pegs confusedly arranged in posterior quarter ( Fig. 86). Median lobe slightly overreaching paramere, apex narrowly rounded ( Figs. 84, 86). Female. Posterior margin of tergite 10 pointed (Fig. 91), valves as in Fig. 92.   Differential diagnosis.  Acylophorus hova  sp. nov.is very similar to  A. montanus  sp. nov., but differs by wider pronotum, which is more widened behind, at most partly lighter last antennal segments, densely punctate abdomen, narrowely rounded apex of median lobe in males and pointed apical margin of tergite 10 infemales.   Distribution. The new species is known only from Ankarafantsika in northern part of Central Madagascar( Fig.176).  Bionomics. All specimens of  Acylophorus hova  sp. nov.were collected by siftings of forest litter.   Discussion.The new species shares very similar shape of aedeagus with  Acylophorus montanus  sp. nov.Originally I supposed that all the differences between the two species fell within an intraspecific variability of one species. However after examination of females, where significant difference between the shape of apical margin of tergite 10 was found, it became apparent that these are two different species. Later I found a few additional differencies in both sexes. 1913892117 [151,1150,594,619] Madagascar -46.8 Ankarafantsika National Park 17 168 1 holotype 1913892133 [199,939,774,799] MMBC, JJRC 17 168 6 6 paratype 1913892132 2011-04-23 MMBC, JJRC Winkler & L. S. Rahanitriniaina & R. Raveloson Madagascar 89 -16.301416 MADAGASCAR 1 46.81897 17 168 14 4 10 paratype 1913892128 2011-04-23 MMBC Winkler & L. S. Rahanitriniaina & R. Raveloson Madagascar 79 -16.302166 MADAGASCAR 1 46.81653 17 168 1 1 paratype 1913892141 2011-04-23 MMBC Winkler & L. S. Rahanitriniaina & R. Raveloson Madagascar 87 -16.30275 MADAGASCAR 1 46.810917 17 168 1 1 paratype 1913892129 2011-04-24 MMBC Winkler & L. S. Rahanitriniaina & Raveloson & All Madagascar J. Janak 83 -16.3025 MADAGASCAR 1 46.815445 17 168 1 1 paratype