306 
Proceedings of the Royal Society of Edinburgh. [Sess. 
The eyes, epimera, and legs are very much the same as in the genus 
Piona ( = Curvipes). In the female, the genital plates are sickle- shaped, 
with from eight to ten acetabula each ; in the male, which is smaller than 
the female, the plates completely surround the genital opening. 
Explanation of Figures — 
Huitfeldtia rectipes, Sig Thor. 
Fig. 1. — Dorsal view of female. Fig. 4. — Terminal segment of fourth leg 
Fig. 2. — Ventral view of female. of female. 
Fig. 3. — Palpus of female, showing char- Fig. 5. — Mandible of female. 
acteristic bristle on third Fig. 6. — Genital plates of male, 
segment. Fig. 7. — Genital plates of female. 
The palpus possesses features which are important in the determination 
of the genus, viz. a long stiff hair or bristle on the outer edge of the third 
segment of each palpus, and on the distal inner edge of the fourth segment 
an elongated peg or tooth. 
