taxonID	type	description	language	source
038D878DA320FF8ECEB9FD80E3A05654.taxon	type_taxon	Type species: Orbellia myopiformis Robineau-Desvoidy, 1830; designated by Coquillett, 1910 (subsequent designation).	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA320FF8BCEB9FCA9E26D55B3.taxon	description	(Figs. 1 – 11)	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA320FF8BCEB9FCA9E26D55B3.taxon	diagnosis	Diagnosis. First flagellomere brownish orange, slightly dark at tip. Palpus yellowish orange, not darkened at tip. Postpronotum color distinct from mesonotum, slightly lighter and yellowish orange. 3 pairs of scutellar setae. Surstylus finger-like at tip with a concavity at apex in outer surface, about 2.3 times as long as basal width.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA320FF8BCEB9FCA9E26D55B3.taxon	description	Description. Body length 3.6 – 5.6 mm, wing length 5.0 – 6.7 mm [Holotype ♂, body length 4.7 mm, wing length 5.9 mm. Paratypes 1 ♂, body length 3.6 mm, wing length 5.0 mm; 1 ♀, body length 5.6 mm, wing length 6.7 mm]. Male. Head (Figs. 2 – 4) brownish grey with pale golden pruinesence; ocellar triangle brown, frons brownish yellow with pale yellow markings, occiput almost brown; gena posteriorly brownish yellow, anteriorly slightly paler. Eyes brownish yellow. Hairs and setae on head dark brown. 2 pairs of fronto-orbital setae directed outwards, much shorter than ocellar seta, anterior one slightly shorter than posterior one (observed in paratypes, left anterior one broken off in holotypes). Antenna brownish orange; pedicel with 1 black dorso-apical seta and 1 – 2 rows of circle setae. First flagellomere slightly dark at tip, round with pale golden velvet, 0.20 times as long as head height; arista pubescent, brownish, 3.35 times longer than first flagellomere. Proboscis brownish yellow with one pair of vibrissae; hairs on proboscis pale golden; palpus yellowish orange, not darkened at tip, with several short setae. Thorax (Fig. 5) brownish grey, postpronotum color distinct from mesonotum, slightly yellowish, mesonotum with pale golden pruinescence. Scutum covered with stained patches, without obvious stripe observed. Hairs and setae on thorax dark brown. Postpronotum with 1 well developed postpronotal seta and 11 – 12 short setae; 1 proepisternal seta, 1 thin proepimeral seta half as long as proepisternal seta; 2 + 4 dorsocentral setae, posterior two longest, gradually decreased in length towards front, 6 irregular rows of acrostichal setae between them; katepisternum with 1 long seta and 4 irregular short setae, about half as long as long setae; anepimeron and anepisternum bare. A pair of prescutellar setae present. Scutellum rounded apically with 3 pairs of scutellar setae broken (in holotpye, in paratype only anterior two on right remained, slightly bent inward and backward). Wing (Fig. 6) nearly hyaline, slightly brownish yellow; veins brownish yellow, crossveins r-m and dm-m without obvious dark markings on membrane; costal spines inconspicuous. Horizontal position where vein R 1 connects with vein C between crossveins r-m and dm-m. Calypter and alula nearly hyaline with pale grey hairs. Halter whitish yellow. Legs brownish yellow except femora darkened dorsally, with pale golden pruinescence. Hairs and setae on legs dark brown. Fore femur slightly thickened with two irregular rows of 12 long dorsal setae and slightly dense short ventral setae; mid femur with 4 antero-dorsal setae in middle; hind femur without obvious long seta. Fore tibia with 1 longer preapical dorsal seta; mid tibia with 2 long strong preapical spines and 3 short strong preapical spines; hind tibia with 1 long preapical dorsal seta. Abdomen brownish grey dorsally, except apex yellowish orange and tergites 2 − 5 with narrowly paler posterior band. Hairs and setae on abdomen dark brown. Tergites with long setae longer at posterior margin. Male genitalia (Figs. 7 – 11): Epandrium large, yellowish orange, with sparse black setae. Hypandrium symmetrical. Surstylus finger-like at tip, with a concavity at apex in outer surface, about 2.3 times as long as basal width, directed inward. Cercus symmetrical, apically rounded, slightly enlarged from middle to apex, brownish yellow, covered with slightly long setae, with longer setae at tip. Phallus with a row of 14 short stout finger-like structures in middle portion (occupying about half of its total length) and a small, rounded protrusion at basal 1 / 3, with a conical, spiny structure covering dorsal surface. Female. Body length 5.6 mm, wing length 6.7 mm. First flagellomere 0.24 times as long as head height; arista pubescent, brownish, 3.60 times longer than first flagellomere. Scutum darker than male. Postpronotum slightly lighter than mesonotum. Mesonotum without obvious stripes. Scutellum with 3 pairs of scutellar setae equal in length. Fore femur slightly thickened with one row of long ventral setae. Tergites 7 – 8 yellowish orange, tergite 7 extremely short.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA320FF8BCEB9FCA9E26D55B3.taxon	materials_examined	Type material. Holotype ♂, China, Beijing, Xijiao Park [39 ° 56 ' 31.59 " N, 116 ° 20 ' 12.33 " E], approximately 45 m, 1952. XI. 19, Yiran Zhang (light trap) (NACRC, IOZ). Paratypes: 1 ♂, China, Beijing, Xijiao Park [39 ° 56 ' 61.84 " N, 116 ° 20 ' 36.15 " E], approximately 45 m, 1952. XI. 12, Yiran Zhang (Light trap) (NACRC, IOZ); 1 ♀, same as holotype.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA320FF8BCEB9FCA9E26D55B3.taxon	distribution	Distribution. China (Beijing).	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA320FF8BCEB9FCA9E26D55B3.taxon	discussion	Remarks. The new species is similar to Orbellia amurensis from the Russian Far East (southern region). Base of surstylus width in new species approximately 3.0 times width of middle, while in O. amurensis base of surstylus width approximately 2.0 times width of middle. Phallus in new species has a row of 14 short, stout, finger-like structures in middle portion, while O. amurensis has 8 spines. Another similar species is Russian species O. obscura Gorodkov, 1972, which features a slender, finger-like structure extending from middle to apex of surstylus, but can be distinguished from it by the following characteristics: first flagellomere primarily brownish yellow with distal end darkened (in O. obscura, first flagellomere entirely dark); frons yellowish orange (in O. obscura, frons dark grey); surstylus with a concave apex, with setae on inner surface but absent on outer surface (in O. obscura, surstylus with a rounded apex with setae on both inner and outer surfaces). The holotype and two paratype specimens are in relatively poor condition. Upon examining specimens, it was observed that some of dorsocentral setae and fronto-orbital setae broken. Specifically, dorsal setae of holotype missing. Fronto-orbital setae noticeably unequal in length among available specimens. However, it should be noted that, in context of species in this genus, variation in length of setae, particularly dorsal and fronto-orbital setae, is not a prominent distinguishing feature and should not be relied upon as a definitive character for species identification.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA320FF8BCEB9FCA9E26D55B3.taxon	etymology	Etymology. The species name zhangi is derived from the surname of the Chinese collector Yiran Zhang.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA325FF87CEB9F930E50B5776.taxon	description	(Figs. 12 – 19)	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA325FF87CEB9F930E50B5776.taxon	diagnosis	Diagnosis. Palpus primarily dark brown with a yellowish tinge near base, overall thickened, with distal end rounded and slightly tapered. Mouth edge with a narrow, heavily sclerotized brown margin. Postpronotum and mesonotum without distinct color difference, only a slightly yellowish brown tinge in middle. 2 pairs of scutellar setae.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA325FF87CEB9F930E50B5776.taxon	description	Description. Body length 5.2 mm, wing length 5.0 mm [Holotype ♀]. Female. Head (Figs. 13 – 14) brownish grey with pale pruinesence; ocellar triangle and area in front of fronto-orbital setae brown, but frons light yellow. Area adjacent to ocellar triangle dark, and anterior frons light, occiput brown; gena posteriorly brown, anteriorly slightly yellowish grey. Eyes brownish orange. Hairs and setae on head dark brown. 2 pairs of fronto-orbital setae exclinate, anterior one slightly shorter than posterior one. Antenna brown; pedicel with 1 black dorso-apical seta and 1 – 2 rows of circle setae. First flagellomere round with brownish velvet, 0.23 times as long as head height; arista pubescent, brownish, 2.9 times longer than first flagellomere, distinctly enlarged at base. Proboscis pale yellow with one pair of vibrissae; hairs on proboscis pale golden; palpus primarily dark brown with a yellowish tinge near base, overall thickened, with distal end rounded and slightly tapered. Mouth edge with a narrow, heavily sclerotized brown margin. Thorax (Figs. 12, 14) dark brown, mesonotum with pale pruinescence. Postpronotum and mesonotum without distinct color difference, only a slightly yellowish brown tinge in middle. Scutum without obvious stripe. Hairs and setae on thorax dark brown. Postpronotum with 1 well developed postpronotal seta and 9 short setae; 1 proepisternal seta, 1 weak proepimeral seta less than half as long as proepisternal seta; 2 + 4 dorsocentral setae, posterior one longest, gradually decreased in length towards front, 2 – 3 irregular rows of acrostichal setae between them; katepisternum with 1 long seta and 3 slightly short setae (0.85 times longer than longest seta); anepimeron and anepisternum bare. A pair of prescutellar setae present. Scutellum same as mesonotum in color, slightly tinged with yellowish brown in middle, rounded apically, with 2 pairs of scutellar setae. Wing (Fig. 15) nearly hyaline, slightly brownish yellow; veins brownish yellow, crossveins r-m and dm-m without obvious dark markings on membrane; costal spines inconspicuous. Horizontal position where vein R 1 connects with vein C between crossveins r-m and dm-m. Calypter and alula nearly hyaline with pale golden hairs. Halter pale yellow with halter stem slightly tinged brown. Legs brownish, except fore and mid trochanters and tibiae brownish yellow at distal ends. Hairs and setae on legs dark brown. Fore femur with 1 – 2 irregular rows of antero-dorsal setae and one row of ventral setae fewer than 10 setae, setae on middle part more developed than those on dorsum; hind femur without obvious long seta. Fore tibia with 1 longer preapical dorsal seta; mid tibia with 4 anterior setae in middle, slightly more developed than surrounding; 2 long strong preapical dorsal spines and 4 strong short preapical ventral spines; hind tibia with 1 long thin dorsal preapical seta. Tarsomere 4 of all legs shorter than tarsomere 3 or 5. Abdomen brownish yellow in both tergites and sternites. Tergite 7 elongated, and tergite 8 about 1 / 3 as long as tergite 7. Hairs and setae on abdomen dark brown. Female genitalia (Figs. 16 – 19): Tergite 9 with several short setae. Cercus brownish yellow, symmetrical, rounded at apex, distal and proximal part with sparse hairs and several long thin brown setae. Two spermathecae dark brown and well sclerotized (Fig. 19), one of which slightly elongated and hemispherical in shape (with a rounded apex, a flattened base, and height-to-base diameter ratio of 1.5: 1.9), while another consists of two identical hemispherical bodies clustered together; spermathecal ducts colorless, transparent, or slightly tinged with pale brown. Male. Unknown.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA325FF87CEB9F930E50B5776.taxon	materials_examined	Type material. Holotype ♀, China, Liaoning, Fushun, Liaoning Dahuo Fang National Wetland Park, [41 ° 55 ' 4.02 " N, 124 ° 19 ' 10.56 " E], approximately 200 m, 2020. XI. 7, Yan Li & Yuetian Gao (CAU).	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA325FF87CEB9F930E50B5776.taxon	distribution	Distribution. China (Liaoning).	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA325FF87CEB9F930E50B5776.taxon	discussion	Remarks. The new species with 2 pairs of scutellar setae, is similar to the Caucasian species O. cuniculorum, O. tetrachaeta and O. zaitzevi, especially O. cuniculorum and O. zaitzevi. First, it can be distinguished from the Georgian species O. zaitzevi by it darkened palpus (in O. zaitzevi palpus pale yellow). Furthermore, it can be distinguished from the European species Orbellia cuniculorum, by following characteristics: palpus almost entirely dark brown and thick (in O. cuniculorum, palpus yellow with slightly darkened tip and comparatively thin); vein C light brown, not darkened (in O. cuniculorum, vein C dark brown and slightly thickened).	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA325FF87CEB9F930E50B5776.taxon	etymology	Etymology. The species name fusca is a Latin adjective meaning " dark " or " dusky ", referring to the overall dark or brownish coloration of the species.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
038D878DA329FF87CEB9FD48E2AA5380.taxon	discussion	Based on the distribution records in Catalogue of Palaearctic Diptera, Vol. 10 (Gorodkov, 1984) for the family Heleomyzidae, O. montana and O. tetrachaeta are recorded from Russia, including the Caucasus region. Additionally, O. zaitzevi is reported from Bakuriani, Georgian, Transcaucasia. These areas lie within the Caucasus, which serves as a natural boundary between Asia and Europe. Specifically, modern-day Georgia, located in the southern part of the Caucasus, is geographically situated in Asia, even though it has historically been seen as a transitional zone between the two continents.	en	Zeng, Wei, Wei, Hongxia, Yang, Ding (2025): First record of the genus Orbellia (Diptera: Heleomyzidae) in China with descriptions of two new species. Zootaxa 5632 (1): 171-180, DOI: 10.11646/zootaxa.5632.1.10, URL: https://doi.org/10.11646/zootaxa.5632.1.10
