Sympotthastia annularis sp. nov. from Oriental China (Diptera: Chironomidae: Diamesinae) with a worldwide key Author Fang, Xiangliang Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang City, Hubei 438000, P. R. China Author Shangguan, Jingru Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang City, Hubei 438000, P. R. China Author Fu, Yue Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang City, Hubei 438000, P. R. China text Zootaxa 2025 2025-11-07 5717 4 571 578 https://doi.org/10.11646/zootaxa.5717.4.5 journal article 313862 10.11646/zootaxa.5717.4.5 d6a836a9-38f4-421a-98ca-037d83611429 1175-5326 17891010 5848FC4F-92CC-4B0B-9B98-4DC0C33031F4

TABLE 1. Lengths (in µm) and proportions of leg segments of male Sympotthastia annularis Fu, sp. nov. (N = 1–2).

	fe	ti	ta 1	ta 2	ta 3	ta 4
P1	1563–1568	1564–1569	1263–1265	667–672	429–432	185–190
P2	1565–1572	1543	846	478	276	119
P3	1787–1793	1786	1171	611	358	149
	ta 5	LR	BV	SV	BR
P1	150–153	0.81	5.52	3.07	2.48
P2	125	0.55	4.17	3.94	3.67
P3	137	0.66	5.32	3.78	3.05