A. C. OUDEMANS, NOTES ON ACARI. 219 



posterior shields. Minute hairs like in the larva ; moreover 

 between the nephridial openings one pair. 



Ventral side (Fig. 23). E p i ra e r a 1 crooked, free ; 

 epimera II more crooked, extending far more backward; epi- 

 mera III and IV very short, scarcely longer than trochanteres 

 III and IV ; both with external epimerites, shown in separate 

 figure 24. Shields: outside of epimera I and 11, and on 

 both sides of epimera III and IV there are narrow rudiments 

 of coxal plates ; the outer parts of coxae III are much wider. 

 Oairs: between the epimera I and II a pair of minute hairs; 

 on the outer part of coxae III the two lateral hairs, which 

 are rather short ; the long one being as long as epimera I 

 and n, the shorter one as long as trochanter III. 



Mandibles normal. 



Maxillae normal. 



Legs normal, shorter than the average breadth of the body. 



Deutonympha (Fig. 25). L e n g t h 360 ^. C o I o u r 

 in the weak parts pale ; in the hard parts brown. Shape; 

 the fore half nearly semicircular or bee-hive shaped with the 

 usual excavation to receive the legs I and II, and with a shallow 

 excavation behind the legs IL Behind the legs III the body 

 narrows suddenly; from here it keeps its width till the rounded 

 posterior edge, which has a large median excavation. Tex- 

 ture in the weak parts finely wrinkled ; in the hard parts 

 smooth. 



Dorsal side (Fig. 25). Anterior shield almost square 

 in its fore-half, almost semicircular in its hind-half. Posterior 

 shield divided in two irregularly-edged oblong pieces incli- 

 ning to each other and flanking the large median excavation. 

 Hairs: a pair of hairs to the sides of the fore-shield is as 

 long as this shield. Two pairs of hairs on the posterior shield 

 as long as the greatest width of the body ; yet the inner pair 

 is slightly longer. Minute hairs like in the protonympha. 

 Ventral side (Fig. 26). Epimera I and II rather 



