16 (DU. A. C. OUDEAfANs). NOTES ON ACAKI VI; 



recognizable between the white-coloured other meal-acari. — 

 Dorsal side (Fig. 31) smooth, pohshed; two rostral hairs, two ver- 

 tical hairs; two hairs on each shoulder; two hairs on each side 

 between the vertical- and shoulder-hairs; five marginal hairs on 

 each side ; two dorsal longitudinal rows of five hairs each, of which 

 the third and fourth pair are more remote from each other than 

 the first, second and fifth pair. Posteriorly the abdomen has a 

 distinct superanal impression in which two hairs are planted. The 

 whole dorsal face is well chitinized. 



Ventral side (Fig. 32). The space betw^een the legs is stronger 

 chitinized than the venter, darker than the latter, remembers 

 strongly of the same space in Orihaiidae , and bears 8 minute 

 hairs. On the venter the genital opening is situated behind the 

 fourth pair of legs, oval in circumference, shut by an oval valvule, 

 and Hanked by a minute hair. Behind the genital opening the 

 longitudinal anal slit is visible between two week anal valvules. 

 Just before and behind the anal slit two minute hairs. — Fig. 33 

 is an enlarged figure ot the genital opening. On sinking the tube 

 of the microscope the penis and the genital suckers become visible. 

 These are small ; the penis is directed backward, and more or less 

 poniard- shaped, the blade being flanked by two pins. 



Legs. The legs 1 and 2 are planted at the edge of the body. 

 They are of the same type. The femur bears a pectinated hair 

 distally and inward; the genu one proximally and outward; the 

 tibia in the middle and outward, and one long tactile hair. The 3d 

 and 4th legs are planted near the edge, so that their implantation 

 is not visible when the animal is viewed on its dorsal face. The 

 3d leg is thinner than the 1st and 2nd. Its tarsus bears (fig. 32) 

 ventrally, proximally and inward a pectinated hair. The 4th leg is 

 thicker than the others, serves probably to clasp the female in 

 copulation. Its tibia bears ventrally, distally and inward a pectinated 

 hair. 



Female. Length about 400 ,«. Colour like that of the male. 

 Dorsal side (Fig. 34) like that of the male. The small copulation 

 tube is distinctly visible in the abdominal impression. — Ventral side 



