FIGURES 17–21. Sinacroneuria obscura Li in A new species of Sinacroneuria (Plecoptera: Perlidae) from Guangxi Zhuang Autonomous Region, southcentral China based on male adult, larva and drumming signals, and validation of the Japanese species of the genus

FIGURES 17–21. Sinacroneuria obscura Li & Murányi, sp. n., female larva and exuviae.—17: proventriculus, dissected; 18: details of proventricular teeth; 19: setation of tergum 5 medial half, dorsal view; 20: setation of sternum 8 medial half, ventral view; 21: setation of the left occipital area of the head, dorsal view—scales 1 mm, Fig. 18 not to scale.