S. Mahunka szerk.: Folia Entomologica Hungarica 56. (Budapest, 1995)

gion present, ornamented with transversal lines. Notogaster surface without any sculpture. Inner pair of prodorsal setae shorter than the outer pair. Hysterosomatic hairs relatively long, well visible. Ventral side (Fig. 3: B). - Infracapitulum of gnathosoma oblong, longer than wide, palpi undifferentiated. Solenidia arcuate, basally widened. Anterior sternal apodeme short and thin. Apodemes 1 originating far from each other, thus, triangular area below gnathosoma rather wide. Apodemes 2 reaching arcs of apodemes 3. Arc of apodemes 3 convex, high and open medially, hence all epimeres open, that of sejugal apodemes considerably flatter, free in the middle. Intermediate sternal apodeme short, posterior sternal apodeme terminating far from primordium of genital opening. Epimeres 1 and 3 with an elliptical suction disk each, aggenital suction disk larger. Terminal adhering disk large, normally developed. Legs. - Tarsus of leg I (Fig. 4: A) with a spoon-shaped adhering hair, besides I2" setae (Fig. 4: C) of pickaxe-shaped, this seta also present on tarsus of leg II. Tibiotarsal group of solenidia composed of 4 members: 8 longer than 92 and (pi, solenidion CUJ short. Fig 3. Histiosîoma pickaxei sp. n. - A: dorsal side, B: ventral side