30 A. e. OUDEMANS, NOTES ON ACARI. 



4 pairs of strong bristles, usual horns, and about 13 transverse 

 rows of minute triangular dentitions in the median streak ; 

 the foremost three of these transverse rows are arched forward ; 

 the hindmost two are concave towards each other. Between 

 hairs III two dentitions directed forward and inward. The 

 inner malae consist in an inner long slip and an outer fringe 

 not passing the top of the horns. Palps dor s ally (fig. 1): 

 femur distally and inward with a little transparent pin 

 directed inward and forward. V e n t r a 1 1 y (fig. 8) ; tro- 

 chanter with a proximal little chitinous elevation, a ditto 

 more forward, an incision inward and about in tlie middle of 

 its length, a central bristle directed outward, and a little 

 transparent pin distally and inward directed inward and forward. 

 Femur with a proximal and outer bristle directed outward, 

 and about in the middle of its leugtb ; an inner knife-like 

 hair with the sharp edge forward and with the blunt 

 edo-e provided with two sharp teeth or bristles. Genu with 

 an outer bristle and an inner Y-shaped hair; tibia and tarsus 

 normal. 



Legs (fig. 1) slender; resp. about 114U, 800, 800 and 

 1260 1^ long. Leg IV with rather rod-like, distally hairy hairs 

 (fio". 3). Praetarsus IV (fig. 9) long and slender ; distally 

 with a pair of bristle-like hairs ; a pair of claws ; a pair of 

 supra- unguinal sticking-pieces, which are broad-oval and pro- 

 vided with a distal little mucro ; and a subunguinal almost 

 globular caruncle. The tarsal distal end (fig. 9) provided with 

 4 minute pins and a pair of long supra-praetarsal sense hairs 

 (tactile?) which do not reach the ambulacrum. 



Deutonympha (fig. 10). Length from 1050 — 1575 /m; of 

 anterior shield 675 — 705;«; of posterior shield 360 — 375 /w. 

 Colour the usual one of Pitrasitus, with dark shields 

 and light unprotected parts. Shape the usual one of Para- 

 situs, shouldered behind legs II, with almost parallel sides 

 and posteriorly rounded. Texture scaly on the shields ; 



