ARACHNIDA 



463 



Fig. 342. Tyroglyphiis siro, seen from the ventral side. A, Female. B, Male. 

 Magnified. From Leuckart and Nitsche. pp. pedipalps ; chc. chelicerae; 

 3) 4> 5> 6, first, second, third and fourth walking legs; rep.ap. reproductive 

 opening, flanked by two suckers on each side ; an. anus ; su. suckers at side 

 of anus. 



.chc.d. 



hyp. 

 chc.s. 



;r vp- 



Fig. 343. Ventral view of capitulum (false head) of Argas persicus, $. From 

 Nuttall. b.cap. basis capituli; chc.d. digit, and chc.s. shaft of chelicera; 

 hyp. hypostome; pp. four-jointed "palp" (pedipalp); ^.^., h.h. postpalpal 

 hair, posthypostomal hair. 



