taxonID	type	description	language	source
E314F5B8E9BC5B3FA59179DB63933EC6.taxon	type_taxon	Type species. Xylochironomus kakadu Cranston, 2006.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
E314F5B8E9BC5B3FA59179DB63933EC6.taxon	diagnosis	Diagnosis. The specimens examined conform in most diagnostic features to the generic description of the adult male (Cranston 2006). Based on the material described below, the generic diagnosis for Xylochironomus should be emended as follows.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
DB099F96B6285384BC8D6A65D4969E16.taxon	description	Figs 1 A, 1 E, 2 A, B	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
DB099F96B6285384BC8D6A65D4969E16.taxon	diagnosis	Diagnosis. The new species is characterised by the gonostylus with an acute apex and high leg value (LR 1 2.2 – 2.4).	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
DB099F96B6285384BC8D6A65D4969E16.taxon	etymology	Etymology. For the type locality, “ meng ” is a term used to refer to certain places in Yunnan dialect, similar to a town or county. The name is a noun in apposition.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
DB099F96B6285384BC8D6A65D4969E16.taxon	description	Description. Male imago (N = 2). Total length 2.8 – 3.3 mm. Wing length 1.6 – 1.7 mm. Total length / Wing length 1.71 – 1.97. Head. Antennal terminal flagellomere 460 – 490 μm long, AR 0.72 – 0.80; apex with 2 – 3 long terminal setae, 85 – 110 μm long. Frontal tubercle ca. 2 – 3 μm long. Temporals with 4 – 6 verticals. Clypeus with 15 – 21 setae. Palpomeres 1 – 5 (in μm): 25 – 30; 50 – 55; 110 – 130; 110 – 125; 200 – 240 in length. Thorax. Acrostichals 10 – 12; dorsocentrals 8 – 10; prealars 3 – 4; scutellars 8 – 10. Wing. VR 1.16 – 1.21. R with 45 – 55 setae; R 1 with more than 50 setae; R 4 + 5 with more than 150 setae. Square 2 – 3 setae. Legs. Scale of fore tibia round, 25 – 35 μm long, spurs of mid tibia and hind tibia 35 – 55 μm and 50 – 65 μm long, respectively. Lengths and proportions of legs as Table 1. Hypopygium (Figs 1 E, 2 B). Tergite IX with 5 – 8 median setae, arranged in one or two rows. Anal point parallel, 45 – 48 μm long, not reaching the apex of inferior volsella. Gonocoxite 150 – 165 μm long, superior volsella 40 – 50 μm long, with two basal inner setae and one additional (‘ outer’) seta, arising from the basal margin of superior volsella, 75 – 80 μm long, extending near the apex of inferior volsella. Gonostylus 120 – 125 μm long, with acute apex. HR 1.28 – 1.38.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
F21B36587E155E019956784E556C1E0D.taxon	description	Figs 1 B, 1 F, 2 C	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
F21B36587E155E019956784E556C1E0D.taxon	diagnosis	Diagnosis. The new species is characterised by the presence of a small frontal tubercle and the contour of the superior volsella.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
F21B36587E155E019956784E556C1E0D.taxon	etymology	Etymology. From the type locality, Gunung Mulu National Park. The name is a noun in apposition.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
F21B36587E155E019956784E556C1E0D.taxon	description	Description. Male imago (N = 2). Total length 2.8 – 3.2 mm. Wing length 1.4 – 1.5 mm. Total length / Wing length 1.93 – 2.19. Head. Frontal tubercle small, 5 – 6 μm wide and 6 – 10 μm long. Antenna terminal flagellomere 420 – 450 μm long, apex with 2 – 3 long apical setae, 80 – 100 μm long. AR 0.79 – 0.84. Temporals with 8 – 12 inner verticals. Clypeus with 18 – 21 setae. Lengths of palpomeres 1 – 5 (in μm): 30 – 33; 45 – 50; 100 – 110; 120 – 125; 190 – 210. Thorax. Acrostichals 16 – 20; dorsocentrals 8 – 9; prealars 3; scutellars 5 – 7 biserial setae, anterior row with 2 – 4 small setae medially. Wing. VR 1.18 – 1.20. R, R 1 and R 4 + 5 with more than 35 setae. Squama with 0 – 2 setae. Legs. Scale of fore tibia tongue-shaped, 25 – 30 μm long; spurs of mid tibia and hind tibia 60 – 70 and 55 – 70 μm long, respectively. Lengths and proportions of legs as Table 2. Hypopygium (Figs 1 F, 2 C). Tergite IX with 4 – 6 median setae in one row. Anal point 50 – 55 μm long, extending to the subapex of inferior volsella. Gonocoxite 150 – 155 μm long, superior volsella with two basal inner setae arising from the distinct tubercles, and one outer seta, arising from the basidorsal surface of superior volsella, 70 – 80 μm long, extending the apex of inferior volsella. Gonostylus 115 – 120 μm long. HR 1.25 – 1.30.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
6E362E93F89D58C49D01BBD1816CE70C.taxon	description	Figs 1 C, 1 G, 2 D	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
6E362E93F89D58C49D01BBD1816CE70C.taxon	diagnosis	Diagnosis. The new species can be separated from congeners by the large wing length (c. 2.0 mm), wing squama with 1 – 3 setae, and the outer seta of the superior volsellae distinctly extending beyond the apex of the superior volsellae.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
6E362E93F89D58C49D01BBD1816CE70C.taxon	etymology	Etymology. For the type locality, “ yue ” is an abbreviation of Guangdong Province. The name is a noun in apposition.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
6E362E93F89D58C49D01BBD1816CE70C.taxon	description	Description. Male imago (N = 4). Total length 3.0 – 3.2 mm. Wing length 1.8 – 1.9 mm. Total length / Wing length 1.68 – 1.75. Head. Frontal tubercle present, ca. 5 μm long. Antenna terminal flagellomere 510 μm (N = 1) long. AR 0.80 (N = 1). Temporals with 10 – 12 inner verticals. Clypeus with 18 – 21 setae. Lengths of palpomeres 1 – 5 (in μm): 30 – 35; 40 – 45; 120 – 125; 125 – 130; 235 – 240. Thorax (N = 1). Acrostichals 14; dorsocentrals 8; prealars 3; scutellars 9, uniserial. Wing. VR 1.18 – 1.20. R, R 1 and R 4 + 5 with more than 40 setae. Squama with 1 – 3 setae. Legs. Scale of fore tibia 30 μm long; spurs of mid tibia and hind tibia 35 – 45 μm and 50 – 60 μm long, respectively. Lengths and proportions of legs as Table 3. Hypopygium (Figs 1 G, 2 D). Tergite IX with 6 – 10 median setae, arranged in one row, and 4 – 6 margin setae on each side. Posterior margin of TIX somewhat smooth. Anal point parallel, 60 μm long, extending not beyond the inferior volsella. Gonocoxite 150 – 155 μm long, superior volsella 55 – 60 μm long, with three basal inner setae and one outer seta 80 – 85 μm long, extending to the apex of inferior volsella slightly. Gonostylus 120 – 130 μm long, with attenuated apex. HR 1.20 – 1.25.	en	Liu, Shutang, Tang, Hongqu (2025): Xylochironomus Cranston newly recorded in the Oriental region (Diptera, Chironomidae), with description of three new species. ZooKeys 1257: 127-135, DOI: 10.3897/zookeys.1257.163285
