NO. 10 I'liEDING ORGANS OF .\KA( IINIDA — SNOIX'.RASS 



7}> 



Chi H5t Pip Hst 



/ -hs 



Vu\. j6. — Acarina-IxiKliclac. 



A, Ixodes riiiiius scapularis Say, capitulum, dorsal. R, same, capituluin. 

 ventral. C, Pcniuuriitor variabilis (Say), capitulmn aiul fjr>t Ic^s, ventral, and 

 papilla of host's skin from which the rostrum of tlie tick was extracted. 1). 

 Boophilus annulatus viicrophts (Can.), capitulum, dorsal; hs, outline of skin 

 of host enshcathinp the rostrum. I"., Ixodes ( liudopotpi>ier ) tosmani victonac 

 Schulze. female, capitulum, dorsal, sliowinj; lar^e basal IoIkvs ( /, / ) of palps 

 (from Schulzc, 1935). F, Ixodes aurilulus Ncwm.. female, palp with basal lolx* 

 (/) (from Schuize, 1935). (i, Boophilus annulatus tnicroplus (Can.), palp. 

 H, same, apical scKuient of palp. I, Ixodes riciiius scapularis .Say. end of left 

 chelicera, dorsal. J, Amblyomma tiiaculatuni K<Kh, right cheliceral digit, dorsal. 

 K, Ih-nnaceutor jxiriabilis (.Say), end of right chelicera, ventral. I., same, digit 

 of right chelicera, dorsal. 



o, main shaft of cheliceral digit; b, toothed lateral lobe of digit; c, mem- 

 branous dorsal lobe of digit; h. protective i xtcusion (lifXMl) from sliaft of 

 chelicera. 



