Chilelimnophila (Chilelimnophila) wangi Krzeminski, Kania-Klosok, sp. nov.
Creators: name: Krzemiński, Wiesław
name: Kania-Kłosok, Iwona
name: Arillo, Antonio
name: Kopeć, Katarzyna
name: Santos, Daubian
name: Soszyńska, Agnieszka
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Chilelimnophila
Chilelimnophila wangi

description: Chilelimnophila (Chilelimnophila) wangi Krzemiński, Kania-Kłosok et Arillo, sp. nov.
(Fig. 3A–E)
Zoobank registration: urn:lsid:zoobank.org:act: 665347C3- 157F-4E27-88DE-4B2BAB670023
Diagnosis: Vein R 1 elongate, tip of R 1 positioned far beyond fork of R 2 + 3+4; sc-r situated before tip of Sc, approximately nine times the distance from the tip of Sc; outer gonostylus narrow, elongate, slender, dark at the tip; inner gonostylus short and massive, reaching approximately half the length of gonocoxite, slightly curved to the internal part of hypopygium, sharpened at apex.
Material examined: Holotype No. MP/4449 (male), coll. Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Kraków, Poland (ISEA PAS). Specimen well preserved, with partially destroyed legs and wing.
Horizon and locality: Lowermost Cenomanian, Hukawng Valley, northern Myanmar. The mining is done at a hill named Noije Bum, near Tanai Village (26 ° 21′ 33.41′′ N, 96 ° 43′ 11.88′′ E).
Description: Body (Fig. 3D) 2.69 mm long, brown, wings without colour pattern, pterostigma absent.
Head: Antenna (Fig. 3A) 0.85 mm long, longer than head, longer than palpus; scape cylindrical, rather short, only slightly longer than pedicel; approximately 2× as long as wide, pedicel ovoid, constricted at base, scape approximately 1.5× as long as pedicel; first flagellomere fused with second and third; flagellomeres 5‒14 elongate, tiny, approximately 4–5× as long as wide, become more slender to the apex of antenna, first flagellomere longer and wider than second one, second and third flagellomeres very short, fused with the first one; last flagellomere shorter than penultimate one; each flagellomeres with three to five elongate setae, longer than segments bearing them; maxillary palpus foursegmented (Fig. 3B), short, 0.2× the length of antenna, 0.21 mm long, palpomeres rather ovoid, short, only slightly longer than wide, third palpomere comparable length to the second, all palpomeres slightly widened in midlength; all palpomeres with few setae, shorter than segments bearing them.
Thorax: Almost as long as high (Fig. 3D); wing 2.94 mm long, 0.84mm wide (Fig. 3E); h vein situated between the base of wing and fork of Mb and Cu; Sc ending on C at the level of bifurcation of Rs and tip of A 1; sc-r situated at approximately eight of its length from the tip of Sc; Rs slightly curved, originating well proximally to the level of the tip of A 2, only slightly longer than R 2 + 3+4, R 1 reaches almost half the length of petiole; fork of R 2 + 3+4 situated just beyond the level of d-cell, R 3 approximately 0.6× the length of R 4; R 4 longer than R 2 + 3+4, longer than Rs; section of R 5 curved between its origin and point of contact with crossvein r-m; vein M 3 almost straight, approximately 1.5× the length of d-cell; d-cell 3× as long as wide; crossvein m-cu shorter than d-cell; A 1 slightly curved at the tip, tip of A 1 situated beyond fork of Mb; A 2 slightly curved; tip of A 2 just before the level of m-cu, just before the level of fork of Mb, beyond the level of fork of Rb; haltere: stem narrow, elongate, slightly longer than knob; tibial spurs rather thick, not very elongate, shorter than setae which occur on tibia.
Abdomen: Male terminalia (Fig. 3E)—hypopygium 0.55 mm long, elongate and narrow, gonocoxite approximately 4× as long as wide, tip of gonocoxite and outer gonostylus slightly sclerotized, brown, outer gonostylus narrow, pointed, slightly curved to internal part of hypopygium, inner gonostylus rather slender but lobe-shaped, very pale, rounded at apex.
Etymology: The specific name is dedicated to eminent palaeontologist Professor Bo Wang from the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China.
description: Published as part of Krzemiński, Wiesław, Kania-Kłosok, Iwona, Arillo, Antonio, Kopeć, Katarzyna, Santos, Daubian & Soszyńska, Agnieszka, 2024, The evolutionary history and biogeographical distribution of the Mesozoic relic genus Chilelimnophila (Diptera, Limoniidae), pp. 1-16 in Zoological Journal of the Linnean Society 202 (1) on pages 4-7, DOI: 10.1093/zoolinnean/zlae119, http://zenodo.org/record/14545093