A. C. OUDEMANS, NOTES ON ACARI. 253 
of thin and short hairs. Openings of the excretory 
glauds like in the larva, but a little behind the level of 
the centre of the posterior shield. 
Ventral side (Fig. 33). Epimera I long, joined to 
a short sternum; epimera II moderate but very crooked ; 
Epimera III and IV short. Shields: outside of epimera I 
and II and on both sides of epimera III and IV there are 
narrow coxal shields; moreover between epimera I and II 
there is a triangular rudiment of coxal plates I; the outer 
portion of coxal plate III is large, almost square. The anterior 
lateral shields are wholy ventral, more or less triangular, 
with convex sides. Hairs; the lateral hairs are planted in 
the outer part of coxal plates III; between the proximal ends 
of epimera I and Il a pair of minute hairs; to the sides of 
the anal split a pair of short and thin hairs, and more externally 
and near the posterior edge of the body again a pair of thin 
and short hairs. Anus touching the median incision. 
Mandibles strong. 
Maxillae like in the larva, normal; palps normal. 
Legs longer than in the larva. Legs I, II and III slender. 
Legs IV scarcely thicker. All the legs shorter than the width 
of the body. 
Deutonympha (Fig. 34, 35). Length, measured on 
30 individuals, from 560—760 4. Colour pale; legs and 
shields light brown. Texture smooth in the legs and shields; 
finely wrinkled in the weak parts. 
Dorsal side (Fig. 34). Anterior dorsal shield 
much more developed than in the protonympha, more elongate, 
posteriorly and laterally more rounded; yet on the side still 
surrounded by a narrow band of weak skin. Anteriorly and 
externally the chitinous ridges distinct and parallel to each 
other. The Y-shaped less chitinized marking with short trunk 
and wide legs; the posterior pieces still more developed than 
in the protonympha; posteriorly again with accolade-shaped 
