Peromitra galgori Lee & Kim, 2025, sp. nov.
Creators: name: Lee, Jun-Ho
name: Kim, Sam-Kyu
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Phoridae
Peromitra
Peromitra galgori

description: Peromitra galgori sp. nov.
(Figs. 1E, 2J–L, 4J–L, 5E, 9)
Diagnosis. This species can be distinguished from the other Peromitra species by the combination of the following characteristics: ocellar region slightly raised; first flagellomere brown; hind tibia with single strong anterodorsal bristle except one preapical bristle; wing vein R 2+3 absent; hypopygium nearly symmetrical; epandrial lobe with densely covered strong, fringed bristles; posterior margin of hypandrium expanded posteroventrally, truncate; dorsal extension of aedeagus greatly elongated, bifurcated at middle, with upper branch long, downwardly hooked and lower branch short, pointed.
Description. Male. Body length 2.70–3.15 mm (n=2). Head (Figs. 1E, 2J–L). Frons black, shiny, with three transverse rows of four long bristles and sparsely covered fine hairs; supra-antennal bristle absent; middle row of bristles nearly straight. Vertex with slightly raised ridge along posterior margin; ocellar region (Fig. 2J–L) slightly raised, twice wider than long; anterior ocellus oval, twice wider than long, as wide as lateral ocelli, protruded anterodorsally. First flagellomere brown, subglobose. Arista brown, located subapically. Palpus brown, with single long apical bristle and some slightly shorter bristles along apex to ventral margin. Labrum and labella pale yellow, short. Thorax (Fig. 1E). Scutum and scutellum blackish brown. Posterior margin of scutum without strong prescutellar bristles between post-alar bristles. Scutellum with anterior pair of short, narrow bristles and posterior pair of long, strong bristles. Pleuron dark brown but lower part under one-third of anepisternum brighter. Upper half of anepisternum covered with short setae. Legs (Figs. 1E, 4J–L). Blackish brown except fore tibia and tarsus yellowish brown and midtarsus brown. Fore tibia (Fig. 4J) with one or two strong dorsal bristle on basal half, single longitudinal row of short dorsal setulae on apical half, and two short preapical posterior setae. Apical fore tarsomere not distinctly widened, with enlarged pulvilli. Midtibia (Fig. 4K) with single dorsal longitudinal setal palisade, single pair of dorsal bristles on basal quarter, one anteroventral preapical bristle, and two long ventroapical spurs. Hind tibia (Fig. 4L) with two dorsal longitudinal setal palisades, one anterodorsal bristle on basal third, one anterodorsal preapical bristle, one dorsoapical bristle, three ventroapical spurs, and some short posteroapical setae. Wing (Fig. 5E). 2.50–2.55 mm long (n=2). Costal index 0.40–0.44. Mean costal ratio 1.63:1; range 1.59–1.67:1. Costal setae of costal section II 0.07–0.10 mm long. Vein Rs with single row of short, fine setulae on dorsal face except apical quarter.Vein R 2+3 absent.Apex of Vein R 4+5 slightly widened. Vein M 1 slightly curved basally and nearly straight apically. Veins yellowish brown, membrane hyaline with yellow tinge. 5–6 alular setae present, 0.16–0.17 mm long. Halter black. Abdomen (Fig. 1E). Tergites blackish brown, shiny. Venter of abdomen dark brown, with single pair of rounded sternite 6. Hypopygium (Fig. 9A–F). Epandrium nearly symmetrical, dark brown. Left and right epandrial lobe fused dorsally, shortly elongated posteroventrally, rounded apically, densely covered with long, strong, fringed bristles apically (Fig. 9A–D). Hypandrium large, dark brown. Lower portion of hypandrium with single pair of lateral membranous lobe cordate, spinulose on posterior and ventral margin; anteroventral portion of lateral membranous lobe rounded (Fig. 9B, D). Posterior margin of each side of hypandrium nearly symmetrical, extended posteroventrally, truncate (Fig. 9B, D), with small, rounded ventral process near posteroventral corner of lateral membranous lobe (Fig. 9E, F). Single pair of small anteroventral processes near basal portion of phallapodeme present, highly sclerotized (Fig. 9E, F). Cercus and hypoproct short, with some short hairs. Aedeagus (Fig. 9G, H). Basically consisting of dorsal plate and ventral membranous plate. Dorsal plate ringed basally, greatly elongated posteriorly, bifurcated at middle, with upper branch long, downwardly hooked and lower branch short, pointed (Fig. 9H). Ventral membranous plate attached on left side of dorsal plate, enlarged, folded few times, basally covered by wide sclerites; apical portion of ventral membranous plate with numerous spinules (Fig. 9G).
Female. Unknown.
Etymology. The specific epithet is derived from the Korean word “Gal-go-ri”, which means hook, refers to the hook-shaped process of aedeagus.
Type specimens. Holotype, ♂, Korea: Jeollanam-do, Gwangyang-si, Ongnyong-myeon, Chusan-ri, Southern Experimental Forest of Seoul National University, 35°01′52.9″N, 127°36′24.8″E, 16–19.vi.2019, Malaise trap, Nam & Park leg. [KNU-PHO 2023-0632] (NIBR); Paratype, 1♂, Korea: Gangwon-do, Wonju-si, Socho-myeon, Hakgokri, Mt. Chiaksan, 37°24′20″N, 128°02′59″E, 395 m, 24.vi–25.vii.2024, Malaise trap, Jun-Ho Lee leg. [KNU-PHO 2024-0724] (KNU).
Ecology. Ecological information for the species is largely unknown.
Remarks. This new species is somewhat similar to two Russian species P. hastata Michailovskaya, 2000 and P. uncinata Michailovskaya, 2000 which have long hooked aedeagus, but can be readily distinguished by tibial chaetotaxy, hypopygium, and short, downwardly curved lower branch of aedeagus (long, upwardly curved lower branch in P. hastata and without lower branch in P. uncinata) (characteristics of P. hastata and P. uncinata refer to the illustrations of Michailovskaya 2000: figs. 1–9).
Distribution. Korea (Gangwon-do, Jeollanam-do).
description: Published as part of Lee, Jun-Ho & Kim, Sam-Kyu, 2025, First record of the scuttle fly genus Peromitra (Diptera: Phoridae) from South Korea, with a key to world species, pp. 111-135 in Zootaxa 5594 (1) on pages 123-124, DOI: 10.11646/zootaxa.5594.1.5, http://zenodo.org/record/14954182