128 
Psyche 
[December 
I did not recover the species even in collections from the 
same locality. This difference might be due to collection 
techniques, as I never used the earth washing method, 
but it appears more likely that there is a difference of 
identification. In any case the occurrence of this species, 
as separate from the new forms described in this paper, 
must be tentative. 
Onychiurus archivari n. sp. 
Plate 8, Figures 16-25 
Description of holotype (female) : Color white; setae 
on ventral surface of second through fourth abdominal 
segments very small and numerous; a single large seta 
on the lateral margin of each thoracic tergite; large setae 
of dorsal surface becoming larger and more numerous 
rearward ; on fifth and sixth abdominal segments they 
form double transverse rows; anal horns well developed, 
about half as long as unguis, slightly curved and situated 
on very small integumentary rings which have non-con- 
fluent bases ; pseudocelli equipped with small closing teeth ; 
third antennal sense organ of four slender protective 
papillae, a pair of slender curved rods, and two smooth 
pine-tree-shaped sensory knobs; a single small bilobed 
knob appears on the fourth antennal segment in a deep 
pit slightly below the apex; ventral surface of fourth 
antennal segment equipped with numerous small smooth 
Explanation of Plate 8 
Onychiurus archivari n. sp. Fig. 16. p.a.o., specimen from Ain 
Z’halte Cedars, Lebanon. Organ length 28 micra. Fig. 17. Anal spine of 
same specimen. Length 20 micra. Fig. 18. Anal spines paratype. Length 
19 micra. Fig. 19. Third antennal segment organ, specimen from Ain 
Z’halte Cedars, Lebanon. Organ length 22 micra. Fig. 20. Third antennal 
segment organ of paratype. Magnification as above. Fig. 21. Third 
antennal segment sense organ another paratype. Fig. 22. Left hind 
claw holotype. External edge unguis 49 micra. Fig. 23. Male genital 
plate paratype. Organ length 38 micra. Fig. 24. Dorsal surface of head 
of paratype. Fig. 25. Right antennal base, specimen from Ain Z’halte 
Cedars, Lebanon. 
