FIGURES 1–6 in Synonymy of Katianna coeruleocephala Handschin, 1920 (Collembola: Katiannidae) with Bourletiella viridescens (Bourletiellidae)

FIGURES 1–6. Photographs of the Holotype and single specimen of Katianna coeruleocephala Börner, 1920 (= Bourletiella viridescens Stach, 1920) 1, lateral view of abdomen VI; 2, lateral view of dorsal curved spines on posterior half of large abdomen; 3, male genital plate; 4, whole animal lateral view; 5, lateral view of mucro and distal portion of dens; 6, apex of tibiotarsus and foot complex III.