Sperchon thienemanni Koenike, 1907

Records (Table 2): Benthos samples at 16 spring sites in Gutland and Ösling, 147 individuals (Gerecke et al. 2005). E1 261 larvae, E3 3 larvae, E4 1 larva, E5 121 larvae, E7 1 larva, parasitic on chironomids. Attribution by comparison with Martin (2003).

Descriptions of larvae (Figs. 19, 20): Lundblad (1927) as S. glandulosus thienemanni, Ullrich (1976), Martin (2003).

Diagnostic characters of larvae: Characters of the legs, dorsal setae, Dp.