Genus
Luffygen. nov.Figs 1, 2, 3, 5 A, 6 A
Type species:
Luffy schillhammeri sp. nov.
Included species:
Luffy nika sp. nov., L. schillhammeri sp. nov.
Diagnosis.
The genus can be diagnosed by narrow, not expanded protarsi in both sexes (Fig. 2 C, D) and all antennomeres longer than wide (Figs 1 A, 1 B, 3 A, 3 B), both traits being unique synapomorphies within Staphylinina. In addition to these characters, the new genus can be further distinguished by the combination of the presence of semimembranous extension on the labrum (Fig. 5 A) and the presence of DRT 1, DRT 2, and BET on the left mandible (Fig. 6 A).
Description.
Medium-sized Staphylinina (TL: 16.4–20.5 mm; FL: 8.4–10.3 mm).
Head. Head slightly transverse (HL / HW = 0.8). Tempora not expanded in both sexes. Eyes large and convex, slightly shorter than tempora (EL / TL: 0.7–0.8). Head densely punctate on both dorsal and ventral faces, punctures rounded to irregular. Labrum moderately large, trapezoidal, with distinct semimembranous margin (Fig. 5 A); anterior portion with two macrosetae. Gular sutures not separated. Antennae very long, all antennomeres longer than wide, with dense pubescence. Mentum with two pairs of macrosetae located in the anterior portion; two pairs of thinner setae located at the anterior margin. Labial palps long; last segment setose, longer than the first two segments (Fig. 2 A). Maxillary palps long; first segment short; second segment as long as the third and last segments combined; last segment with very minute setae, almost unobservable even at 50 × magnification (Fig. 2 B). Mandibles very long and slender, both left and right mandibles with DRT 1, DRT 2 and BET, DRT 1, and DRT 2 forming a larger bidentate tooth; BET close to the base of mandible on both sides of mandible, located above the prostheca (Fig. 6 A). Prostheca single-lobed. Head chaetotaxy: FCP present; TM close to posterior margin of eyes; 1 POP present; PFM missing.
Thorax. Pronotum pyriform, longer than wide (PL / PW: 1.32–1.41), densely punctate; impunctate midline almost invisible. Anterior angles rounded. Superior and inferior marginal lines join each other approximately one-third from the anterior margins; pronotal hypomera asetose. Pronotum chaetotaxy: PAMM 1 present, PALM absent, PMM present, located at approximately one-third of pronotal length from the anterior margin. Mesoventrite ridge absent. Elytra and hind wings fully developed, elytra with a distinct transverse curved stripe of pale setae in both species. Elytral chaetotaxy: EDM 1, 2, 3 present; PsP 2 absent. Protibiae slender, without modification, with 2–3 spines on lateral face; meso-and metatibiae straight, not arcuate, mesotibiae with numerous spines; metatibiae with 2–3 spines on lateral face. Protarsi not expanded; underside densely setose, but setae unmodified (Fig. 2 C, D).
Abdomen. All segments densely covered with long setae. Tergites III – V with distinct accessory ridges, with paler setal patches besides the outer margin of accessory ridges; tergites VI and VII with paler setae in anterior margin. Tergite VII with a distinct pale apical seam of palisade setae. Abdominal segment VII longer than other segments. Abdominal segment chaetotaxy: MTM and PTM present; segments VII and VIII with numerous macrosetae.
Male. Sternite VIII with a moderately deep, subtriangular emargination at midpoint of posterior margin. Abdominal segment IX clavate (Fig. 2 G). Tergite X triangular (Fig. 2 E). Aedeagus strongly asymmetrical; paramere slightly bent to the left side in parameral view; peg setae present in the anterior portion but not strongly pigmented.
Female. The only known female of L. schillhammeri sp. nov. is slightly larger than males of both species. Abdominal segment IX clavate, slightly wider than in male (Fig. 2 H). Tergite X triangular (Fig. 2 F), fully sclerotized, without a membranous part.
Etymology.
The generic name Luffy is the given name of the main character of the famous manga “ One Piece ”, Monkey D. Luffy, who has the ability to extend his body parts. It refers to the elongated antennae, palps, and mandibles of the new genus. The gender is masculine.
Publication Date: 2026-06-05