taxonID	type	description	language	source
CA90D76EC0CE514EAF3AE16EF1C09F9C.taxon	description	Figs 3 B – E, 4	en	Jin, Haobo, Wang, Yiyi, Song, Chao, Qi, Xin (2025): First morphological description of the larval stages of three Microtendipes species (Diptera, Chironomidae) from South China with molecular confirmation. ZooKeys 1255: 27-40, DOI: 10.3897/zookeys.1255.161652
CA90D76EC0CE514EAF3AE16EF1C09F9C.taxon	diagnosis	Diagnosis (Fig. 3 B, C). Mentum dark brown, with median teeth distinctly paler than lateral teeth; cephalic capsule brown. Total length 7.1 – 7.8, 7.5 mm; head capsule length 490.0 – 520.0, 505.0 μm; head capsule width 450.0 – 460.0, 455.0 μm. Mentum (Fig. 3 C). Width 152.5 μm; median tooth width 37.5 μm; ventromental plate width 125.0 – 132.5, 128.8 μm; distance between ventromental plates 83.0 – 90.0, 86.5 μm; striae count 35.0 – 40.0, 37.5. Mandible (Fig. 3 D). Length 168.0 – 195.0, 181.5 μm. Antenna (Fig. 3 E). Segment lengths, 102.5 – 112.5, 107.5 μm; 25.0 – 27.5, 26.3 μm; 27.0 μm; 25.0 μm; 17.0 – 17.5, 17.3 μm; 10.0 μm. Antennal ratio (AR) 1.0 – 1.1, 1.0. Ring organ width 34.0 – 35.0, 34.5 μm; ring organ positioned at 0.2 – 0.3, 0.3 of basal segment length, 22.5 – 35.0, 28.8 μm from segment base; antennal blade 106.0 – 125.0, 115.5 μm in length, width 2.0 – 18.0 μm. Labrum. Premandible with two apical teeth; length 97.5 – 120.0, 108.8 μm. Pecten epipharyngis with three broad marginal teeth apically; labral lamella composed of 15 small teeth. Thorax. Anterior claws pale with a little golden posterior claws pale golden, both simple and dense. Abdomen. 8 tail hairs of anal seta, 520.0 – 611.0, 565.5 μm (Table 1).	en	Jin, Haobo, Wang, Yiyi, Song, Chao, Qi, Xin (2025): First morphological description of the larval stages of three Microtendipes species (Diptera, Chironomidae) from South China with molecular confirmation. ZooKeys 1255: 27-40, DOI: 10.3897/zookeys.1255.161652
A6D2358AFD9556BBBD2718BC432B3B56.taxon	description	Figs 7 B – E, 8	en	Jin, Haobo, Wang, Yiyi, Song, Chao, Qi, Xin (2025): First morphological description of the larval stages of three Microtendipes species (Diptera, Chironomidae) from South China with molecular confirmation. ZooKeys 1255: 27-40, DOI: 10.3897/zookeys.1255.161652
A6D2358AFD9556BBBD2718BC432B3B56.taxon	diagnosis	Diagnosis (Fig. 7 B, C). The larvae possess a light brown cephalic capsule and dark brown mentum, with the pale median teeth forming a distinct contrast against the darker lateral teeth. Total length. 2.9 – 9.6 mm, 5.0 mm; head capsule length 325.0 – 650.0, 521.3 μm; head capsule width 287.5 – 620.0, 480.6 μm. Mentum (Fig. 7 C). Width 92.5 – 185.0, 151.9 μm; median tooth width 20.5 – 42.5, 33.3 μm; ventromental plate width 75.0 – 150.0, 120.0 μm; distance between ventromental plates 51.0 – 125.0, 105.9 μm; number of striae 28 – 43, 38.3. Mandible (Fig. 7 D). Length 115.0 – 200.0, 174.4 μm. Antenna (Fig. 7 E). Segment lengths, 42.5 – 117.5, 75.8 μm; 15.5 – 25.0, 22.6 μm; 17.5 – 27.5, 21.9 μm; 15.0 – 18.0, 17.1 μm; 11.0 – 15.0, 12.9 μm; 5.0 – 8.0, 6.1 μm. Antennal ratio (AR) 0.8 – 1.3, 0.9. Ring organ width 20.0 – 37.0, 30.5 μm; ring organ positioned at 0.3 – 0.6, 0.4 of basal segment, 22.5 – 32.5, 26.3 μm from segment base. Labrum. Premandible with two apical teeth; length 60.0 – 110.0, 90.0 μm. Pecten epipharyngis with three broad marginal teeth apically; labral lamella composed of 16 – 17 small teeth. Thorax. Anterior claws pale with golden hints; posterior claws darker, pale brown. Procercus and apical setae are yellowish brown. Abdomen. 8 tail hairs of anal seta, 347.0 – 602.3, 492.5 μm (Table 1).	en	Jin, Haobo, Wang, Yiyi, Song, Chao, Qi, Xin (2025): First morphological description of the larval stages of three Microtendipes species (Diptera, Chironomidae) from South China with molecular confirmation. ZooKeys 1255: 27-40, DOI: 10.3897/zookeys.1255.161652
80E993F85CDF5499A18D925216EB36C6.taxon	description	Figs 5 B – E, 6	en	Jin, Haobo, Wang, Yiyi, Song, Chao, Qi, Xin (2025): First morphological description of the larval stages of three Microtendipes species (Diptera, Chironomidae) from South China with molecular confirmation. ZooKeys 1255: 27-40, DOI: 10.3897/zookeys.1255.161652
80E993F85CDF5499A18D925216EB36C6.taxon	diagnosis	Diagnosis (Fig. 5 B, C). Mentum dark brown, with median teeth concolorous with lateral teeth; median tooth slightly shorter than the second lateral tooth. The cephalic capsule is light brown. Total length 2.1 – 3.7, 2.8 mm; head capsule length 375.0 – 400.0, 387.5 μm; head capsule width 287.5 – 300.0, 292.5 μm. Mentum (Fig. 5 C). Width 105.0 – 110.0, 108.0 μm; median tooth width 23.0 – 25.0, 24.3 μm; ventromental plate width 83.0 – 122.5, 96.8 μm; distance between ventromental plates 59.0 – 85.0, 68.8 μm; striae count 22 – 29, 26. Mandible (Fig. 5 D). Length 125.0 – 132.5, 129.8 μm. Antenna (Fig. 5 E). Segment lengths: 100.0 – 102.5, 101.2 μm; 27.0 – 28.0, 27.5 μm; 23.0 – 26.3, 24.8 μm; 16.0 – 21.3, 19.1 μm; 10.0 – 11.3, 10.4 μm; 7.5 – 8.8, 7.9 μm). Antennal ratio (AR) 1.1 – 1.2, 1.1. Ring organ width 25.5 μm; ring organ positioned at 0.15 – 0.22, 0.20 of basal segment length, 15.0 – 22.5, 20.0 μm from segment base; antennal blade 53.0 – 72.0, 59.7 μm in length. Labrum. Premandible bifid; length 62.5 – 65.0, 63.8 μm. Pecten epipharyngis is composed of 8 teeth. Thorax. Anterior claws pale with a faint golden tint; posterior claws pale golden. Procercus and apical setae are yellowish brown. Abdomen. Anal setae comprising 8 hairs, length 197.4 – 445.0, 327.5 μm (Table 1).	en	Jin, Haobo, Wang, Yiyi, Song, Chao, Qi, Xin (2025): First morphological description of the larval stages of three Microtendipes species (Diptera, Chironomidae) from South China with molecular confirmation. ZooKeys 1255: 27-40, DOI: 10.3897/zookeys.1255.161652
