Anhoraeomorphus sakarahanus Jałoszyński 2024, comb. n.
Creators: name: Jałoszyński, Paweł
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Anhoraeomorphus
Anhoraeomorphus sakarahanus

description: Anhoraeomorphus sakarahanus (Franz), comb. n.   
(Figs 44–51)  
 Horaeomorphus sakarahanus Franz, 1986b: 165.   
 Type material studied. Holotype (Madagascar): ♂, four labels: “S-Madagaskar / Foret de Sakahara {sic!} / lg. H.Franz 1969” [white, printed], “ Horaeomorphus / sakarahanus m. / det. H.Franz ” [yellowish, handwritten and printed], “Typus” [red, handwritten], “ ♂ ” [white, printed] (NHMW).   
 Revised diagnosis. Body (Fig. 44) stout; head (Fig. 45) about as long as wide, with vertex posteriorly broadly rounded; pronotum (Fig. 44) bell-shaped, broadest near middle, with one pair of distinct antebasal pits; antennomeres 3–10 not elongate; all femora similarly slender; metatibiae in males unmodified; aedeagus (Figs 48–51) in ventral view broadest near middle, with apical region of dorsal wall abruptly bent dorsally, distolateral endophallic sclerites widely separated and with rounded apices, each paramere with a row of subapical setae distributed on less than distal fourth.   
 Redescription. Body of male (Fig. 44) light brown, appendages indistinctly lighter, setae yellowish; BL 1.40 mm.   
Head (Figs 45–46) in anterodorsal view rounded, broadest at eyes, HL 0.28 mm, HW 0.28 mm; temple in lateral view (Fig. 46) subequal to length of eye; vertex and frons confluent, together weakly convex and about as long as broad; vertex posteriorly strongly rounded; each eye moderately large and weakly convex, with deep posteromedian emargination, weakly projecting from head silhouette. Punctures on vertex fine, inconspicuous; setae short, sparse and suberect; posterior region of frons and entire vertex densely covered with thick bristles directed posteriorly. Antenna (Fig. 47) slender but short, slightly shorter than half BL, AnL 0.55 mm, antennomeres 1 and 2 each weakly elongate, 3 slightly transverse, 4–7 each about as long as broad, 8–10 each transverse; 11 slightly shorter than 9 and 10 combined, as wide as 10, about 1.8 times as long as broad.  
Pronotum (Fig. 44) bell-shaped, broadest near middle; PL 0.38 mm, PW 0.35 mm. Anterior margin weakly arcuate, lateral margins rounded, anteriorly converging stronger than posteriorly; posterior corners blunt; posterior margin indistinctly convex. Base with one pair of round and deep pits, and with barely discernible, extremely short vestiges of sublateral carinae. Disc with fine, inconspicuous punctures; setae sparse, short and suberect, lateral and lateroventral surface of pronotum with dense thick bristles.  
Elytra (Fig. 44) together oval, broadest distinctly in front of middle; EL 0.75 mm, EW 0.58 mm, EI 1.30; humeral calli weakly elevated, basal elytral foveae vestigial, barely discernible. Punctures fine and inconspicuous; setae sparse, short and suberect.  
Legs moderately long, slender, unmodified except slightly recurved tibiae.  
Aedeagus (Figs 48–51) stout, AeL 0.23 mm; in ventral view broadest near middle and distinctly narrowing towards truncate apex; in lateral view apical region of dorsal wall strongly and abruptly bent dorsally; endophallus with symmetrical and elongate distolateral sclerites and basilateral sclerites, and with asymmetrical weakly sclerotized median structures, distolateral sclerites broadly separated and each with rounded apex; parameres slender and their apices only slightly projecting beyond aedeagal apex, each paramere with a row of sparse and short setae occupying slightly less than distal fourth.  
Female. Unknown.  
 Distribution. Southern Madagascar (Atsimo-Andrefana Region).   
 Remarks. Franz misspelled Sakaraha in the locality label as “Sakahara”.   
 Anhoraeomorphus sakarahanus is most similar to A. ankaratranus; see Remarks for the latter species.
description: Published as part of Jałoszyński, Paweł, 2024, The ' curse of Horaeomorphus' (almost) lifted. Revision of misplaced species from Madagascar, Comoros and Mascarenes (Coleoptera, Staphylinidae, Scydmaeninae), pp. 1-96 in Zootaxa 5505 (1) on pages 17-19, DOI: 10.11646/zootaxa.5505.1.1, http://zenodo.org/record/13745912