Planche 1 issued from : Brodsky K.A., Vyshkvartseva N.V., Kos M.S. & Markhaseva E.L. in Opred. Faune SSSR, 1983, 135. [p.285, Fig.135];
Male: forehead and basal segment of A1 (lateral); S5, P5.
Nota: Very simolar to the male of S. stellatus; basal segment of A1 with stellate bundle of spines. Differs in presence of group of spines on dorsal side of head, spines forming oval spot and the structure of P5