taxonID	type	description	language	source
5EBC6A250D60586C90EF41A99B49B30A.taxon	description	Figs 1, 2, 3	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
5EBC6A250D60586C90EF41A99B49B30A.taxon	diagnosis	Diagnosis. The anal tergite is wider at the top and narrower at the bottom with a rounded posterior margin. The anal point is short and rounded at the tip, thumb-like. The femur setae are thick, resembling spines.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
5EBC6A250D60586C90EF41A99B49B30A.taxon	description	Description. Male (N = 5, unless otherwise stated in brackets). Total length 3.37 – 3.88, 3.56 mm. Wing length 1.78 – 2.10, 1.92 mm. Total length / wing length 1.75 – 1.96, 1.86. Wing length / length of profemur 2.08 – 2.28, 2.23. The thorax is yellow-brown with brown markings, scutellum and the posterior half of the scutellum are lighter in color. The abdomen is brown. Head (Fig. 1 C). AR 1.66 – 1.78, 1.72. Temporal setae 14 – 17, 15; including 3 – 7, 6 inner verticals; 4 – 9, 6 outer verticals; and 6 – 10, 8 (3) postorbitals. Clypeus with 21 – 37, 29 setae. Tentorium 139 – 172, 160 μm long. Palpomere lengths (II – V in μm): 51 – 75, 62; 81 – 117, 94; 78 – 107, 91; 121 – 151, 137; The ratio of the length of V to III: 1.29 – 1.62, 1.43. Thorax (Figs 1 B, 3 B). Antepronotals with 5 – 12, 9 setae, acrostichals 5 – 7, 6, dorsocentrals 17 – 28, 23. prealars 4 – 8, 5. Scutellum with 6 – 12, 10 setae. Wing (Figs 2 A, 3 A). Anal lobe developed. VR 1.17 – 1.21, 1.19. Costa extension 36 – 49, 43 µm. The end of R 2 + 3 is between R 1 and R 4 + 5. Radius with 8 – 15, 11 setae. R 1 with 2 – 6, 4 setae. Squama with 13 – 17, 16 setae. Brachiolum with one seta. Legs (Fig. 1 E – G). Tarsomeres without bristles, hind leg with long bristles. Front tibia with one spur, 75 – 85, 81 µm long. Mid tibial with 2 spurs, the long one 53 – 60, 58 µm and the other is one-third of it, 20 – 25, 23 µm. Hind tibia with one spur, 70 – 80, 73 µm long. The hind tibial comb with 10 – 14, 12 spurs. Tarsus I and II of mid leg with two pseudospurs. Tarsus III of mid legs with 0 – 1 pseudospurs. Tarsus I and II of hind leg with two pseudospurs. Tarsus III of hind legs with 0 – 1 pseudospurs. Lengths (in μm) and proportions of legs as in Table 1. Hypopygium (Figs 2 A, C, D, 3 C, D). Tergite IX with 14 – 18, 16 setae located in the lower part of anal tergite equably. Anal tergite wider at the top and narrower at the bottom, and margo inferior smooth. The end of anal point smooth and as wide as the base of anal point, thumb-like. Transverse sternapodeme 125 – 150, 129 µm long centrally slightly arched, with prominent oral projections. Virga 73 – 85, 75 µm long, club-shaped. The dorsal volsella is salient, the ventral volsella is arc-shaped and bears a row of setae. Gonocoxite 272 – 315, 287 µm long, Gonostylus 111 – 148, 126 µm long, outer margin with conspicuous setal fringe. Megaseta 15 – 30, 24 µm long. HR 2.13 – 2.51, 2.46; HV 2.62 – 3.19. 2.85.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
5EBC6A250D60586C90EF41A99B49B30A.taxon	distribution	Distribution. China (Fujian, Guizhou).	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
5EBC6A250D60586C90EF41A99B49B30A.taxon	etymology	Etymology. Named after Xinhua Wang, in honor of his contributions to the study of Chironomidae, noun in nominative case.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
D44E2125085A5BD28114D456E05467BA.taxon	description	Figs 4, 5, 6	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
D44E2125085A5BD28114D456E05467BA.taxon	diagnosis	Diagnosis. Thorax and abdomen dark. Anal tergite inverted triangle, both sides with a reticulate pattern; anal point mid-length, uniform thickness, gonostylus narrow and long.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
D44E2125085A5BD28114D456E05467BA.taxon	description	Description. Male (N = 3, unless stated). Total length 3.63 – 3.66, 3.65 mm. Wing length 2.00, 2.15 (2) mm. Total length / wing length 1.69, 1.82 (2). Wing length / length of profemur 2.43, 2.36 (2). Thorax dark brown to black, abdomen yellowish brown (Fig. 5 B). Head (Fig. 4 B). AR 1.67 – 1.97, 1.80. Temporal setae 10 – 12, 11; including 2 – 4, 3 inner verticals; 3 – 6, 4 outer verticals; and 2 – 5, 4 postorbitals. Clypeus with 9 – 11, 10 setae. Tentorium 150 – 164, 155 μm long. Palpomere lengths (II – V in μm): 48 – 62, 56; 86 – 107, 97; 110 – 130, 113; 131 – 160, 148. The ratio of the length of V to III: 1.35 – 1.86, 1.55. Thorax (Figs 4 C, 6 B). Antepronotals 4 – 10, 7, acrostichals absent, dorsocentrals 10 – 16, 13, prealars 4 – 8, 6. Scutellum with 4 – 6, 5 setae. Wing (Fig. 4 A, 6 A). Anal lobe developed. VR 1.16, 1.23 (2). Costa extension 55, 58 (2) µm. The end of R 2 + 3 is between R 1 and R 4 + 5. Radius with 5 (1) setae. Squama with 29 (1) setae. Brachiolum with one seta. Legs (Fig. 4 E – G). Front tarsomeres without bristles, tibial comb with one spur, 68 – 83, 74 µm long, mid tibia with two spurs, one is 53 – 55, 53 µm long, one is thin and small, 8 – 10, 9 µm long. Hind tibia with one spur, 70 – 75, 73 µm long. The tibial comb of mid legs with 13 – 17, 14 spurs. Tarsus I of mid legs with two pseudospurs. Tarsus II of mid legs with 1 – 2 pseudospurs. Tarsus III of mid legs with two pseudospurs. Tarsus I and II of hind legs with two pseudospurs. Lengths (in μm) and proportions of legs as in Table 2. Hypopygium (Figs 5 A, C, D, 6 C, D). Tergite IX with 13 – 19, 15 setae ascending along both sides of the base of anal point. Tergite paratergital 10 – 15, 12 setae. Anal tergite inverted triangle, both sides with a reticulate pattern. Anal point mid-length, 20 – 29, 25 µm long, uniform thickness. Transverse sternapodeme 115 – 138, 124 µm long, central slightly arched, with well-developed bilateral ossified processes. Virga 75 – 80, 78 µm, the top of virga a small part is hook-shaped. Dorsal volsella square-shaped, ventral circular. Both sides of volsella with setae. Gonocoxite 250 – 276, 266 µm. Gonostylus 117 – 130, 123 µm, megaseta 12 – 17, 15 µm. HR 2.08 – 2.26, 2.16; HV 2.79 – 3.11, 2.97.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
D44E2125085A5BD28114D456E05467BA.taxon	distribution	Distribution. China (Inner Mongolia).	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
D44E2125085A5BD28114D456E05467BA.taxon	etymology	Etymology. From the Latin, gracilis, narrow and thin, referring to the character of tergite IX and gonostylus, adjective in the nominative singular.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
6BEB00D786BE53A0BA010A05B7D4542E.taxon	description	Figs 7, 8, 9	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
6BEB00D786BE53A0BA010A05B7D4542E.taxon	diagnosis	Diagnosis. The base of gonocoxite with a small convex, the mid-upper part of gonocoxite with obvious concave, the outlines of both the left and right sides create a shape reminiscent of an apple. The end of inferior volsella pendulous and tongue-shaped.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
6BEB00D786BE53A0BA010A05B7D4542E.taxon	description	Description. Male (N = 1). Total length 4.07 mm. Wing length 2.04 mm. Total length / wing length 2.00. Wing length / length of profemur 2.32. Thorax yellow to brown, with dark brown patterns. Abdomen II – V yellow, abdomen VI – VIII yellowish brown. Head (Fig. 7 B). AR 1.70. Temporal setae 13; including 4 inner verticals; 3 outer verticals; and 6 postorbitals. Clypeus with 16 setae. Tentorium 116 μm long. Palpomere lengths (II – V in μm): 54, 102, 89, 203. The ratio of the length of V to III: 2.00. Thorax (Figs 7 C, 9 B). Antepronotum with 7 setae, acrostichals absent, dorsocentrals 6, prealars 6. Scutellum two setae. Wing (Figs 7 A, 9 A). Anal lobe developed. VR 1.17. Costa extension 43 µm. The end of R 2 + 3 is between R 1 and R 4 + 5. Radius with 9 setae. R 1 with one seta. Squama with two setae. Brachiolum with two setae. Legs (Fig. 7 E – G). Front legs, mid legs and hind legs each with one tibial spur, length is 70, 55, 65 µm. The tibial comb of hind legs with 17 spurs. Tarsus I of fore legs with one pseudospurs. Tarsus I, II and III of mid legs with two pseudospurs. Tarsus I, II and III of hind legs with two pseudospurs. Lengths (in μm) and proportions of legs as in Table 3. Hypopygium (Figs 8 A, C, D, 9 C, D). Tergite IX with 15 setae located two sides and the base of anal point. Tergite paratergital 11 setae. Anal point 14 µm long. The base of anal point 8 µm wide. Transverse sternapodeme 128 µm long, central slightly arched, with well-developed bilateral ossified processes, triangle-shaped. Virga 53 µm long. The end of inferior volsella pendulous and tongue-shaped. Outer margin of inferior volsella semicircular. Gonocoxite 303 µm, the base of gonostylus with a small convex, base outer margin of gonocoxite concave, the left and right contours form apple shaped. Gonostylus 166 µm, Megaseta 18 µm. HR 1.83; HV 2.45.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
6BEB00D786BE53A0BA010A05B7D4542E.taxon	distribution	Distribution. China (Inner Mongolia).	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
6BEB00D786BE53A0BA010A05B7D4542E.taxon	etymology	Etymology. From the Latin, malum, apple, referring to the convex and concave upper inner margin of the two sides of the gonocoxite, which has an apple-like form.	en	Liu, Wenbin, Tang, Yaning, Nie, Jiaxin, Shao, Ziming, Cao, Wei, Yan, Chuncai (2025): Three new species of Psectrocladius Kieffer (Diptera, Chironomidae) from China. ZooKeys 1239: 33-50, DOI: 10.3897/zookeys.1239.145869
