Anhoraeomorphus sakarahanus Jałoszyński 2024, comb. n.
Year: 2024
Type: other
Abstract: 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.
Author: Jałoszyński, Paweł
Language: English
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W6892944019
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