Chaetopteryx sahlbergi McLachlan 1876 .

The first abdominal segment is densely covered by spiked setae, their total number on the first segment being no more than 40 (Fig. 6B). The gills consist of single filaments (Fig. 6C). The metanotum has two visibly separated anteromedial sclerites (Fig. 6D). One seta is present on each side of abdominal tergite IX (Fig. 6E). Secondary setae are absent on the femora of the middle and hind legs; there is only one seta on the basal half of each upper femur edge (Figs 6F, 6G). The larval case is a slightly curved conic tube, up to 1.5 cm long, constructed of short detrital sticks varying in length and embedded along the case (Fig. 6H). This species sporadically occurred in the assemblages of Trichoptera on water moss, but the numbers were low.