A. C. OUÜEMANS, NOTES ON ACARI. 203 



creature has planed it lateral shields dorsalward ; but when 

 it has bent its lateral shields more ventralward, the long hairs 

 gob their usual ventral position. On the posterior shield a 

 pair of minute hairs close to the aiiterior edge; a second pair 

 behind the line of the lateral hairs ; a third pair before the 

 nephridial openings ; a fourth pair before the po«îterior exca- 

 vation of the body. The nephridial openings lie on 

 a line with the distal ends of trochanteres IV near the dark 

 margin. On the edge of the abdomen a little behind the trans- 

 verse line which may be drawn through the top of the posterior 

 abdominal incision, a minute hair (Fig. 7). Then, far more 

 backward, a short horizontal f)in, behind which there is a 

 crooked short hair which almost lies against the »horn«. On 

 the posterior edge of each horn externally a long stiff hair, 

 about as long as the greatest width of the body, and internally 

 a horizontal pin, directed inward. On the hyaline membrane 

 behind the »horns« an inward bent hair, about as long as the 

 width of the ab 'omen. On the inn^r edge of the incision almost 

 opposite the outer minute pin, there is a very thin short hair 

 directed inward. 



Ventral side (Fig. 6). Epiirera I free ; epimsra IIa 

 little bent outward; epimera 111 short; epimera IV nearly 

 strait with proximal external long epimerite and distal external 

 one, of which the first part is square. Externally of 

 e^dmera I and II and internally of epimera III and IV a 

 narrow coxal plate. A triangular ventral portion of the lateral 

 shields occupies the space between the brown external margin 

 of coxal parts II and epimeron III. On these shields the 

 accompanying ventral and lateral hair is visible, not longer 

 than trochanter III. I have drawn a dotted line uniting the 

 tops of the epimera. The space within this line is dark 

 coloured though wrinkled. Genital opening on a line with the 

 distal ends of epimera IV. Anal suckers before the 

 transverse line that may be drawn through the top of the 



