A. C. OUDEMANS, NOTES ON ACARI. 251 
Dorsal side. (Fig. 30). There is an anterior dor- 
sal shield, it is very wide, though there”is still a narrow 
band of unprotected skin between its lateral edges and the 
lateral edges of the body where legs II are implanted ; it 
reaches not far beyond the trochanteres II; its posterior edge 
is somewhat rounded; it shows a less chitinized Y-shaped 
marking, as if it were coalesced from three separate shields, 
like in Syringobia, but 1 never saw skins in which really the 
three shields were separate. The posterior dorsal shield 
is elongate, narrow, with slightly sinuated sides, anteriorly 
pointed, posteriorly truncate, but slightly incised in the middle ; 
it reaches not more forward than to a line where the legs IV 
will afterwards appear. No lateral shields. The follow- 
ing hairs are to note down: quite anteriorly a pair of 
thin vertical hairs; on the posterior parts of the anterior 
dorsal shield a pair of hairs so long that they may reach the 
top of the rostrum; then inward of these a pair of minute 
hairs; on the sides, on a line between legs II and II a pair 
of fine and short hairs; more inward and a litte forward a 
pair of minute hairs; on a line with the top of the posterior 
dorsal shield a pair of minute hairs; further backwards a 
pair of fine and short hairs near te edge of the body; quite 
posteriorly and flanking the shield a pair of minute hairs ; 
and finally in the margin of the shield a pair of hairs as 
long as the half of the length of the body. Excretory 
openings on a line with the centre of the posterior 
shield. 
Ventral side (Fig. 31). Epimera I joined to a 
small sternum; epimera II short; epimera III very short. 
Shields: outside of epimera I and II and on both sides 
of epimera III there are narrow rudiments of coxal shields. 
Hairs; I did not observe other hairs than the two well 
known lateral ones, planted outside of coxal plate III and of 
which the smaller one stands before the longer one, not inward 
