562 IVAR TRAGARDH 
tudinal ridges. On the exterior side of the pseudostigmata there is a small so- 
called exostigmal hair. 
The pseudostigmal organs are attached near the anterior part of the 
bottom of the trumpet and protrude close to the anterior wall of the tube. 
They widen gradually towards the blunt end where there are some rather in- 
distinct teeth and the pedicel is slightly S-shaped. 
Hysterosoma (fig. 11) very highly arched, broadly rounded anteriorly, 

Figs. 13—18. Neoliodes Backstroémi nu. sp. 
13. Propodosoma. 14. Hypostome, maxille and left palp. 15. Pseudostigma. 16, Femur II. 
17. Distal half of femur, genu. tibia and tarsus I. 18. 4th leg. 
slightly pointed posteriorly, where two small terminal hairs are inserted on a 
wartlike projection. The dorsal side has a median, narrow, elongated oval 
depression near the anterior margin, and two slightly raised ridges running 
paralell to the sides in the anterior third. In the centre there is an oval area, 
almost half as long as the dorsal shield, where there is no special texture, but 
in the posterior third there are faint traces of narrow dark bands or low ridges 
running backwards and outwards in even curves and along the sides in the 
middle and further forwards other similar ridges running toward the periphery 
and curved forwards. 
The one larval and three nymphal shields are of the shape typical for 
